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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-30 19:09:18 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-30 19:09:18 +0000 |
commit | b0d61785cae024b1f44119446a940ee14c9ac959 (patch) | |
tree | 5a495a583b002ae9e57f09848ae697160708c220 /share/doc/smm/01.setup | |
parent | d43599f73ba5858e573c7ad8b284f6a0808c5c93 (diff) | |
download | FreeBSD-src-b0d61785cae024b1f44119446a940ee14c9ac959.zip FreeBSD-src-b0d61785cae024b1f44119446a940ee14c9ac959.tar.gz |
BSD 4.4 Lite Share Sources
Diffstat (limited to 'share/doc/smm/01.setup')
-rw-r--r-- | share/doc/smm/01.setup/0.t | 131 | ||||
-rw-r--r-- | share/doc/smm/01.setup/1.t | 172 | ||||
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-rw-r--r-- | share/doc/smm/01.setup/Makefile | 15 | ||||
-rw-r--r-- | share/doc/smm/01.setup/spell.ok | 618 |
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diff --git a/share/doc/smm/01.setup/0.t b/share/doc/smm/01.setup/0.t new file mode 100644 index 0000000..2f880eb --- /dev/null +++ b/share/doc/smm/01.setup/0.t @@ -0,0 +1,131 @@ +.\" Copyright (c) 1988, 1993 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)0.t 8.1 (Berkeley) 7/27/93 +.\" +.ds Ux \s-1UNIX\s0 +.ds Bs \s-1BSD\s0 +.\" Current version: +.ds 4B 4.4\*(Bs +.ds Ps 4.3\*(Bs +.\" tape and disk naming +.ds Mt mt +.ds Dk sd +.ds Dn disk +.ds Pa c +.\" block size used on the tape +.ds Bb 10240 +.ds Bz 20 +.\" document date +.ds Dy July 27, 1993 +.de Sm +\s-1\\$1\s0\\$2 +.. +.de Pn \" pathname +\f(CW\\$1\fP\\$2 +.. +.de Li \" literal +\f(CW\\$1\fP\\$2 +.. +.de I \" italicize first arg +\fI\\$1\fP\^\\$2 +.. +.de Xr \" manual reference +\fI\\$1\fP\^\\$2 +.. +.de Fn \" function +\fI\\$1\fP\^()\\$2 +.. +.bd S B 3 +.EH 'SMM:1-%''Installing and Operating \*(4B UNIX' +.OH 'Installing and Operating \*(4B UNIX''SMM:1-%' +.de Sh +.NH \\$1 +\\$2 +.nr PD .1v +.XS \\n% +.ta 0.6i +\\*(SN \\$2 +.XE +.nr PD .3v +.. +.TL +Installing and Operating \*(4B UNIX +.br +\*(Dy +.AU +Marshall Kirk McKusick +.AU +Keith Bostic +.AU +Michael J. Karels +.AU +Samuel J. Leffler +.AI +Computer Systems Research Group +Department of Electrical Engineering and Computer Science +University of California, Berkeley +Berkeley, California 94720 +(415) 642-7780 +.AU +Mike Hibler +.AI +Center for Software Science +Department of Computer Science +University of Utah +Salt Lake City, Utah 84112 +(801) 581-5017 +.AB +.PP +This document contains instructions for the +installation and operation of the +\*(4B release of UNIX\** +as distributed by The University of California at Berkeley. +.FS +UNIX is a registered trademark of USL in the USA and some other countries. +.FE +.PP +It discusses procedures for installing UNIX on a new machine, +and for upgrading an existing \*(Ps UNIX system to the new release. +An explanation of how to lay out filesystems on available disks +and the space requirements for various parts of the system are given. +A brief overview of the major changes to +the system between \*(Ps and \*(4B are outlined. +An explanation of how to set up terminal lines and user accounts, +and how to do system-specific tailoring is provided. +A description of how to install and configure the \*(4B networking +facilities is included. +Finally, the document details system operation procedures: +shutdown and startup, filesystem backup procedures, +resource control, performance monitoring, and procedures for recompiling +and reinstalling system software. +.AE +.bp +3 diff --git a/share/doc/smm/01.setup/1.t b/share/doc/smm/01.setup/1.t new file mode 100644 index 0000000..2f71b77 --- /dev/null +++ b/share/doc/smm/01.setup/1.t @@ -0,0 +1,172 @@ +.\" Copyright (c) 1988, 1993 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)1.t 8.1 (Berkeley) 7/27/93 +.\" +.ds lq `` +.ds rq '' +.ds LH "Installing/Operating \*(4B +.ds RH Introduction +.ds CF \*(Dy +.LP +.bp +.Sh 1 "Introduction" +.PP +This document explains how to install the \*(4B Berkeley +version of UNIX on your system. +The filesystem format is compatible with \*(Ps +and it will only be necessary for you to do a full bootstrap +procedure if you are installing the release on a new machine. +The object file formats are completely different from the System +V release, so the most straightforward procedure for upgrading +a System V system is to do a full bootstrap. +.PP +The full bootstrap procedure +is outlined in section 2; the process starts with copying a filesystem +image onto a new disk. +This filesystem is then booted and used to extract the remainder of the +system binaries and sources from the archives on the tape(s). +.PP +The technique for upgrading a \*(Ps system is described +in section 3 of this document. +The upgrade procedure involves extracting system binaries +onto new root and +.Pn /usr +filesystems and merging local +configuration files into the new system. +User filesystems may be upgraded in place. +Most \*(Ps binaries may be used with \*(4B in the course +of the conversion. +It is desirable to recompile local sources after the conversion, +as the new compiler (GCC) provides superior code optimization. +Consult section 3.5 for a description of some of the differences +between \*(Ps and \*(4B. +.Sh 2 "Distribution format" +.PP +The distribution comes in two formats: +.DS +(3)\0\0 6250bpi 2400' 9-track magnetic tapes, or +(1)\0\0 8mm Exabyte tape +.DE +.PP +If you have the facilities, we \fBstrongly\fP recommend copying the +magnetic tape(s) in the distribution kit to guard against disaster. +The tapes contain \*(Bb-byte records. +There are interspersed tape marks; +end-of-tape is signaled by a double end-of-file. +The first file on the tape is architecture dependent. +Additional files on the tape(s) +contain tape archive images of the system binaries and sources (see +.Xr tar (1)\**). +.FS +References of the form \fIX\fP(Y) mean the entry named +\fIX\fP in section Y of the ``UNIX Programmer's Manual''. +.FE +See the tape label for a description of the contents +and format of each individual tape. +.Sh 2 "UNIX device naming" +.PP +Device names have a different syntax depending on whether you are talking +to the standalone system or a running UNIX kernel. +The standalone system syntax is currently architecture dependent and is +described in the various architecture specific sections as applicable. +When not running standalone, devices are available via files in the +.Pn /dev/ +directory. +The file name typically encodes the device type, its logical unit and +a partition within that unit. +For example, +.Pn /dev/sd2b +refers to the second partition (``b'') of +SCSI (``sd'') drive number ``2'', while +.Pn /dev/rmt0 +refers to the raw (``r'') interface of 9-track tape (``mt'') unit ``0''. +.PP +The mapping of physical addressing information (e.g. controller, target) +to a logical unit number is dependent on the system configuration. +In all simple cases, where only a single controller is present, a drive +with physical unit number 0 (e.g., as determined by its unit +specification, either unit plug or other selection mechanism) +will be called unit 0 in its UNIX file name. +This is not, however, strictly +necessary, since the system has a level of indirection in this naming. +If there are multiple controllers, the disk unit numbers will normally +be counted sequentially across controllers. This can be taken +advantage of to make the system less dependent on the interconnect +topology, and to make reconfiguration after hardware failure easier. +.PP +Each UNIX physical disk is divided into at most 8 logical disk partitions, +each of which may occupy any consecutive cylinder range on the physical +device. The cylinders occupied by the 8 partitions for each drive type +are specified initially in the disk description file +.Pn /etc/disktab +(c.f. +.Xr disktab (5)). +The partition information and description of the +drive geometry are written in one of the first sectors of each disk with the +.Xr disklabel (8) +program. Each partition may be used for either a +raw data area such as a paging area or to store a UNIX filesystem. +It is conventional for the first partition on a disk to be used +to store a root filesystem, from which UNIX may be bootstrapped. +The second partition is traditionally used as a paging area, and the +rest of the disk is divided into spaces for additional ``mounted +filesystems'' by use of one or more additional partitions. +.Sh 2 "UNIX devices: block and raw" +.PP +UNIX makes a distinction between ``block'' and ``raw'' (character) +devices. Each disk has a block device interface where +the system makes the device byte addressable and you can write +a single byte in the middle of the disk. The system will read +out the data from the disk sector, insert the byte you gave it +and put the modified data back. The disks with the names +.Pn /dev/xx0[a-h] , +etc., are block devices. +There are also raw devices available. +These have names like +.Pn /dev/rxx0[a-h] , +the ``r'' here standing for ``raw''. +Raw devices bypass the buffer cache and use DMA directly to/from +the program's I/O buffers; +they are normally restricted to full-sector transfers. +In the bootstrap procedures we +will often suggest using the raw devices, because these tend +to work faster. +Raw devices are used when making new filesystems, +when checking unmounted filesystems, +or for copying quiescent filesystems. +The block devices are used to mount filesystems. +.PP +You should be aware that it is sometimes important whether to use +the character device (for efficiency) or not (because it would not +work, e.g. to write a single byte in the middle of a sector). +Do not change the instructions by using the wrong type of device +indiscriminately. diff --git a/share/doc/smm/01.setup/2.t b/share/doc/smm/01.setup/2.t new file mode 100644 index 0000000..ddc4f7e --- /dev/null +++ b/share/doc/smm/01.setup/2.t @@ -0,0 +1,1658 @@ +.\" Copyright (c) 1988, 1993 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)2.t 8.1 (Berkeley) 7/27/93 +.\" +.ds lq `` +.ds rq '' +.ds LH "Installing/Operating \*(4B +.ds RH Bootstrapping +.ds CF \*(Dy +.Sh 1 "Bootstrap procedure" +.PP +This section explains the bootstrap procedure that can be used +to get the kernel supplied with this distribution running on your machine. +If you are not currently running \*(Ps you will +have to do a full bootstrap. +Section 3 describes how to upgrade a \*(Ps system. +An understanding of the operations used in a full bootstrap +is helpful in doing an upgrade as well. +In either case, it is highly desirable to read and understand +the remainder of this document before proceeding. +.PP +The distribution supports a somewhat wider set of machines than +those for which we have built binaries. +The architectures that are supported only in source form include: +.IP \(bu +Intel 386/486-based machines (ISA/AT or EISA bus only) +.IP \(bu +Sony News MIPS-based workstations +.IP \(bu +Omron Luna 68000-based workstations +.LP +If you wish to run one of these architectures, +you will have to build a cross compilation environment. +Note that the distribution does +.B not +include the machine support for the Tahoe and VAX architectures +found in previous BSD distributions. +Our primary development environment is the HP9000/300 series machines. +The other architectures are developed and supported by +people outside the university. +Consequently, we are not able to directly test or maintain these +other architectures, so cannot comment on their robustness, +reliability, or completeness. +.Sh 2 "Bootstrapping from the tape" +.LP +The set of files on the distribution tape are as follows: +.IP 1) +A +.Xr dd (1) +(HP300), +.Xr tar (1) +(DECstation), or +.Xr dump (8) +(SPARC) image of the root filesystem +.IP 2) +A +.Xr tar +image of the +.Pn /var +filesystem +.IP 3) +A +.Xr tar +image of the +.Pn /usr +filesystem +.IP 4) +A +.Xr tar +image of +.Pn /usr/src/sys +.IP 5) +A +.Xr tar +image of +.Pn /usr/src +except sys and contrib +.IP 6) +A +.Xr tar +image of +.Pn /usr/src/contrib +.IP 7) +(8mm Exabyte tape distributions only) +A +.Xr tar +image of +.Pn /usr/src/X11R5 +.LP +The tape bootstrap procedure used to create a +working system involves the following major steps: +.IP 1) +Transfer a bootable root filesystem from the tape to a disk +and get it booted and running. +.IP 2) +Build and restore the +.Pn /var +and +.Pn /usr +filesystems from tape with +.Xr tar (1). +.IP 3) +Extract the system and utility source files as desired. +.PP +The following sections describe the above steps in detail. +The details of the first step vary between architectures. +The specific steps for the HP300, SPARC, and DECstation are +given in the next three sections respectively. +You should follow the instructions for your particular architecture. +In all sections, +commands you are expected to type are shown in italics, while that +information printed by the system is shown emboldened. +.Sh 2 "Booting the HP300" +.Sh 3 "Supported hardware" +.LP +The hardware supported by \*(4B for the HP300/400 is as follows: +.TS +center box; +lw(1i) lw(4i). +CPU's T{ +68020 based (318, 319, 320, 330 and 350), +68030 based (340, 345, 360, 370, 375, 400) and +68040 based (380, 425, 433). +T} +_ +DISK's T{ +HP-IB/CS80 (7912, 7914, 7933, 7936, 7945, 7957, 7958, 7959, 2200, 2203) +and SCSI-I (including magneto-optical). +T} +_ +TAPE's T{ +Low-density CS80 cartridge (7914, 7946, 9144), +high-density CS80 cartridge (9145), +HP SCSI DAT and +SCSI Exabyte. +T} +_ +RS232 T{ +98644 built-in single-port, 98642 4-port and 98638 8-port interfaces. +T} +_ +NETWORK T{ +98643 internal and external LAN cards. +T} +_ +GRAPHICS T{ +Terminal emulation and raw frame buffer support for +98544 / 98545 / 98547 (Topcat color & monochrome), +98548 / 98549 / 98550 (Catseye color & monochrome), +98700 / 98710 (Gatorbox), +98720 / 98721 (Renaissance), +98730 / 98731 (DaVinci) and +A1096A (Hyperion monochrome). +T} +_ +INPUT T{ +General interface supporting all HIL devices. +(e.g. keyboard, 2 and 3 button mice, ID module, ...) +T} +_ +MISC T{ +Battery-backed real time clock, +builtin and 98625A/B HP-IB interfaces, +builtin and 98658A SCSI interfaces, +serial printers and plotters on HP-IB, +and SCSI autochanger device. +T} +.TE +.LP +Major items that are not supported +include the 310 and 332 CPU's, 400 series machines +configured for Domain/OS, EISA and VME bus adaptors, audio, the centronics +port, 1/2" tape drives (7980), CD-ROM, and the PVRX/TVRX 3D graphics displays. +.Sh 3 "Standalone device file naming" +.LP +The standalone system device name syntax on the HP300 is of the form: +.DS +xx(a,c,u,p) +.DE +where +\fIxx\fP is the device type, +\fIa\fP specifies the adaptor to use, +\fIc\fP the controller, +\fIu\fP the unit, and +\fIp\fP a partition. +The \fIdevice type\fP differentiates the various disks and tapes and is one of: +``rd'' for HP-IB CS80 disks, +``ct'' for HP-IB CS80 cartridge tapes, or +``sd'' for SCSI-I disks +(SCSI-I tapes are currently not supported). +The \fIadaptor\fP field is a logical HP-IB or SCSI bus adaptor card number. +This will typically be +0 for SCSI disks, +0 for devices on the ``slow'' HP-IB interface (usually tapes) and +1 for devices on the ``fast'' HP-IB interface (usually disks). +To get a complete mapping of physical (select-code) to logical card numbers +just type a ^C at the standalone prompt. +The \fIcontroller\fP field is the disk or tape's target number on the +HP-IB or SCSI bus. +For SCSI the range is 0 to 6 (7 is the adaptor address) and +for HP-IB the range is 0 to 7. +The \fIunit\fP field is unused and should be 0. +The \fIpartition\fP field is interpreted differently for tapes +and disks: for disks it is a disk partition (in the range 0-7), +and for tapes it is a file number offset on the tape. +Thus, partition 2 of a SCSI disk drive at target 3 on SCSI bus 1 +would be ``sd(1,3,0,2)''. +If you have only one of any type bus adaptor, you may omit the adaptor +and controller numbers; +e.g. ``sd(0,2)'' could be used instead of ``sd(0,0,0,2)''. +The following examples always use the full syntax for clarity. +.Sh 3 "The procedure" +.LP +The basic steps involved in bringing up the HP300 are as follows: +.IP 1) +Obtain a second disk and format it, if necessary. +.IP 2) +Copy a root filesystem from the +tape onto the beginning of the disk. +.IP 3) +Boot the UNIX system on the new disk. +.IP 4) +(Optional) Build a root filesystem optimized for your disk. +.IP 5) +Label the disks with the +.Xr disklabel (8) +program. +.Sh 4 "Step 1: selecting and formatting a disk" +.PP +For your first system you will have to obtain a formatted disk +of a type given in the ``supported hardware'' list above. +If you want to load an entire binary system +(i.e., everything except +.Pn /usr/src ), +on the single disk you will need a minimum of 290MB, +ruling out anything smaller than a 7959B/S disk. +The disklabel included in the bootstrap root image is laid out +to accommodate this scenario. +Note that an HP SCSI magneto-optical disk will work fine for this case. +\*(4B will boot and run (albeit slowly) using one. +If you want to load source on a single disk system, +you will need at least 640MB (at least a 2213A SCSI or 2203A HP-IB disk). +A disk as small as the 7945A (54MB) can be used for the bootstrap +procedure but will hold only the root and primary swap partitions. +If you plan to use multiple disks, +refer to section 2.5 for suggestions on partitioning. +.PP +After selecting a disk, you may need to format it. +Since most HP disk drives come pre-formatted +(except optical media) +you probably will not, but if necessary, +you can format a disk under HP-UX using the +.Xr mediainit (1m) +program. +Once you have \*(4B up and running on one machine you can use the +.Xr scsiformat (8) +program to format additional SCSI disks. +Any additional HP-IB disks will have to be formatted using HP-UX. +.Sh 4 "Step 2: copying the root filesystem from tape to disk" +.PP +Once you have a formatted second disk you can use the +.Xr dd (1) +command under HP-UX to copy the root filesystem image from +the tape to the beginning of the second disk. +For HP's, the root filesystem image is the first file on the tape. +It includes a disklabel and bootblock along with the root filesystem. +An example command to copy the image from tape to the beginning of a disk is: +.DS +.ft CW +dd if=/dev/rmt/0m of=/dev/rdsk/1s0 bs=\*(Bzb +.DE +The actual special file syntax may vary depending on unit numbers and +the version of HP-UX that is running. +Consult the HP-UX +.Xr mt (7) +and +.Xr disk (7) +man pages for details. +.PP +Note that if you have a SCSI disk, you don't necessarily have to use +HP-UX (or an HP) to create the boot disk. +Any machine and operating system that will allow you to copy the +raw disk image out to block 0 of the disk will do. +.PP +If you have only a single machine with a single disk, +you may still be able to install and boot \*(4B if you have an +HP-IB cartridge tape drive. +If so, you can use a more difficult approach of booting a +standalone copy program from the tape, and using that to copy the +root filesystem image from the tape to the disk. +To do this, you need to extract the first file of the distribution tape +(the root image), copy it over to a machine with a cartridge drive +and then copy the image onto tape. +For example: +.DS +.ft CW +dd if=/dev/rst0 of=bootimage bs=\*(Bzb +rcp bootimage foo:/tmp/bootimage +<login to foo> +dd if=/tmp/bootimage of=/dev/rct/0m bs=\*(Bzb +.DE +Once this tape is created you can boot and run the standalone tape +copy program from it. +The copy program is loaded just as any other program would be loaded +by the bootrom in ``attended'' mode: +reset the CPU, +hold down the space bar until the word ``Keyboard'' appears in the +installed interface list, and +enter the menu selection for SYS_TCOPY. +Once loaded and running: +.DS +.TS +lw(2i) l. +\fBFrom:\fP \fI^C\fP (control-C to see logical adaptor assignments) +\fBhpib0 at sc7\fP +\fBscsi0 at sc14\fP +\fBFrom:\fP \fIct(0,7,0,0)\fP (HP-IB tape, target 7, first tape file) +\fBTo:\fP \fIsd(0,0,0,2)\fP (SCSI disk, target 0, third partition) +\fBCopy completed: 1728 records copied\fP +.TE +.DE +.LP +This copy will likely take 30 minutes or more. +.Sh 4 "Step 3: booting the root filesystem" +.PP +You now have a bootable root filesystem on the disk. +If you were previously running with two disks, +it would be best if you shut down the machine and turn off power on +the HP-UX drive. +It will be less confusing and it will eliminate any chance of accidentally +destroying the HP-UX disk. +If you used a cartridge tape for booting you should also unload the tape +at this point. +Whether you booted from tape or copied from disk you should now reboot +the machine and do another attended boot (see previous section), +this time with SYS_TBOOT. +Once loaded and running the boot program will display the CPU type and +prompt for a kernel file to boot: +.DS +.B +HP433 CPU +Boot +.R +\fB:\fP \fI/vmunix\fP +.DE +.LP +After providing the kernel name, the machine will boot \*(4B with +output that looks about like this: +.DS +.B +597480+34120+139288 start 0xfe8019ec +Copyright (c) 1982, 1986, 1989, 1991, 1993 + The Regents of the University of California. +Copyright (c) 1992 Hewlett-Packard Company +Copyright (c) 1992 Motorola Inc. +All rights reserved. + +4.4BSD UNIX #1: Tue Jul 20 11:40:36 PDT 1993 + mckusick@vangogh.CS.Berkeley.EDU:/usr/obj/sys/compile/GENERIC.hp300 +HP9000/433 (33MHz MC68040 CPU+MMU+FPU, 4k on-chip physical I/D caches) +real mem = xxx +avail mem = ### +using ### buffers containing ### bytes of memory +(... information about available devices ...) +root device? +.R +.DE +.PP +The first three numbers are printed out by the bootstrap program and +are the sizes of different parts of the system (text, initialized and +uninitialized data). The system also allocates several system data +structures after it starts running. The sizes of these structures are +based on the amount of available memory and the maximum count of active +users expected, as declared in a system configuration description. This +will be discussed later. +.PP +UNIX itself then runs for the first time and begins by printing out a banner +identifying the release and +version of the system that is in use and the date that it was compiled. +.PP +Next the +.I mem +messages give the +amount of real (physical) memory and the +memory available to user programs +in bytes. +For example, if your machine has 16Mb bytes of memory, then +\fBxxx\fP will be 16777216. +.PP +The messages that come out next show what devices were found on +the current processor. These messages are described in +.Xr autoconf (4). +The distributed system may not have +found all the communications devices you have +or all the mass storage peripherals you have, especially +if you have more than +two of anything. You will correct this when you create +a description of your machine from which to configure a site-dependent +version of UNIX. +The messages printed at boot here contain much of the information +that will be used in creating the configuration. +In a correctly configured system most of the information +present in the configuration description +is printed out at boot time as the system verifies that each device +is present. +.PP +The \*(lqroot device?\*(rq prompt was printed by the system +to ask you for the name of the root filesystem to use. +This happens because the distribution system is a \fIgeneric\fP +system, i.e., it can be bootstrapped on a cpu with its root device +and paging area on any available disk drive. +You will most likely respond to the root device question with ``sd0'' +if you are booting from a SCSI disk, +or with ``rd0'' if you are booting from an HP-IB disk. +This response shows that the disk it is running +on is drive 0 of type ``sd'' or ``rd'' respectively. +If you have other disks attached to the system, +it is possible that the drive you are using will not be configured +as logical drive 0. +Check the autoconfiguration messages printed out by the kernel to +make sure. +These messages will show the type of every logical drive +and their associated controller and slave addresses. +You will later build a system tailored to your configuration +that will not prompt you for a root device when it is bootstrapped. +.DS +\fBroot device?\fP \fI\*(Dk0\fP +\fBWARNING: preposterous time in filesystem \-\- CHECK AND RESET THE DATE!\fP +\fBerase ^?, kill ^U, intr ^C\fP +\fB#\fP +.DE +.PP +The \*(lqerase ...\*(rq message is part of the +.Pn /.profile +that was executed by the root shell when it started. This message +tells you about the settings of the character erase, +line erase, and interrupt characters. +.PP +UNIX is now running, +and the \fIUNIX Programmer's Manual\fP applies. The ``#'' is the prompt +from the Bourne shell, and lets you know that you are the super-user, +whose login name is \*(lqroot\*(rq. +.PP +At this point, the root filesystem is mounted read-only. +Before continuing the installation, the filesystem needs to be ``updated'' +to allow writing and device special files for the following steps need +to be created. +This is done as follows: +.DS +.TS +lw(2i) l. +\fB#\fP \fImount_mfs -s 1000 -T type /dev/null /tmp\fP (create a writable filesystem) +(\fItype\fP is the disk type as determined from /etc/disktab) +\fB#\fP \fIcd /tmp\fP (connect to that directory) +\fB#\fP \fI../dev/MAKEDEV \*(Dk#\fP (create special files for root disk) +(\fI\*(Dk\fP is the disk type, \fI#\fP is the unit number) +(ignore warning from ``sh'') +\fB#\fP \fImount \-uw /tmp/\*(Dk#a /\fP (read-write mount root filesystem) +\fB#\fP \fIcd /dev\fP (go to device directory) +\fB#\fP \fI./MAKEDEV \*(Dk#\fP (create permanent special files for root disk) +(again, ignore warning from ``sh'') +.TE +.DE +.Sh 4 "Step 4: (optional) restoring the root filesystem" +.PP +The root filesystem that you are currently running on is complete, +however it probably is not optimally laid out for the disk on +which you are running. +If you will be cloning copies of the system onto multiple disks for +other machines, you are advised to connect one of these disks to +this machine, and build and restore a properly laid out root filesystem +onto it. +If this is the only machine on which you will be running \*(4B +or peak performance is not an issue, you can skip this step and +proceed directly to step 5. +.PP +Connect a second disk to your machine. +If you bootstrapped using the two disk method, you can +overwrite your initial HP-UX disk, as it will no longer +be needed (assuming you have no plans to run HP-UX again). +.PP +To really create the root filesystem on drive 1 +you should first label the disk as described in step 5 below. +Then run the following commands: +.DS +\fB#\fP \fIcd /dev\fP +\fB#\fP \fI./MAKEDEV \*(Dk1a\fP +\fB#\fP\|\fInewfs /dev/r\*(Dk1a\fP +\fB#\fP\|\fImount /dev/\*(Dk1a /mnt\fP +\fB#\fP\|\fIcd /mnt\fP +\fB#\fP\|\fIdump 0f \- /dev/r\*(Dk0a | restore xf \-\fP +(Note: restore will ask if you want to ``set owner/mode for '.''' +to which you should reply ``yes''.) +.DE +.PP +When this completes, +you should then shut down the system, and boot on the disk that +you just created following the procedure in step (3) above. +.Sh 4 "Step 5: placing labels on the disks" +.PP +For each disk on the HP300, \*(4B places information about the geometry +of the drive and the partition layout at byte offset 1024. +This information is written with +.Xr disklabel (8). +.PP +The root image just loaded includes a ``generic'' label intended to allow +easy installation of the root and +.Pn /usr +and may not be suitable for the actual +disk on which it was installed. +In particular, +it may make your disk appear larger or smaller than its real size. +In the former case, you lose some capacity. +In the latter, some of the partitions may map non-existent sectors +leading to errors if those partitions are used. +It is also possible that the defined geometry will interact poorly with +the filesystem code resulting in reduced performance. +However, as long as you are willing to give up a little space, +not use certain partitions or suffer minor performance degradation, +you might want to avoid this step; +especially if you do not know how to use +.Xr ed (1). +.PP +If you choose to edit this label, +you can fill in correct geometry information from +.Pn /etc/disktab . +You may also want to rework the ``e'' and ``f'' partitions used for loading +.Pn /usr +and +.Pn /var . +You should not attempt to, and +.Xr disklabel +will not let you, modify the ``a'', ``b'' and ``d'' partitions. +To edit a label: +.DS +\fB#\fP \fIEDITOR=ed\fP +\fB#\fP \fIexport EDITOR\fP +\fB#\fP \fIdisklabel -r -e /dev/r\fBXX#\fPd +.DE +where \fBXX\fP is the type and \fB#\fP is the logical drive number; e.g. +.Pn /dev/rsd0d +or +.Pn /dev/rrd0d . +Note the explicit use of the ``d'' partition. +This partition includes the bootblock as does ``c'' +and using it allows you to change the size of ``c''. +.PP +If you wish to label any additional disks, run the following command for each: +.DS +\fB#\|\fP\fIdisklabel -rw \fBXX# type\fP \fI"optional_pack_name"\fP +.DE +where \fBXX#\fP is the same as in the previous command +and \fBtype\fP is the HP300 disk device name as listed in +.Pn /etc/disktab . +The optional information may contain any descriptive name for the +contents of a disk, and may be up to 16 characters long. This procedure +will place the label on the disk using the information found in +.Pn /etc/disktab +for the disk type named. +If you have changed the disk partition sizes, +you may wish to add entries for the modified configuration in +.Pn /etc/disktab +before labeling the affected disks. +.PP +You have now completed the HP300 specific part of the installation. +Now proceed to the generic part of the installation +described starting in section 2.5 below. +Note that where the disk name ``sd'' is used throughout section 2.5, +you should substitute the name ``rd'' if you are running on an HP-IB disk. +Also, if you are loading on a single disk with the default disklabel, +.Pn /var +should be restored to the ``f'' partition and +.Pn /usr +to the ``e'' partition. +.Sh 2 "Booting the SPARC" +.Sh 3 "Supported hardware" +.LP +The hardware supported by \*(4B for the SPARC is as follows: +.TS +center box; +lw(1i) lw(4i). +CPU's T{ +SPARCstation 1 series (1, 1+, SLC, IPC) and +SPARCstation 2 series (2, IPX). +T} +_ +DISK's T{ +SCSI. +T} +_ +TAPE's T{ +none. +T} +_ +NETWORK T{ +SPARCstation Lance (le). +T} +_ +GRAPHICS T{ +bwtwo and cgthree. +T} +_ +INPUT T{ +Keyboard and mouse. +T} +_ +MISC T{ +Battery-backed real time clock, +built-in serial devices, +Sbus SCSI controller, +and audio device. +T} +.TE +.LP +Major items that are not supported include +anything VME-based, +the GX (cgsix) display, +the floppy disk, and SCSI tapes. +.Sh 3 "Limitations" +.LP +There are several important limitations on the \*(4B distribution +for the SPARC: +.IP 1) +You +.B must +have SunOS 4.1.x or Solaris to bring up \*(4B. +There is no SPARCstation bootstrap code in this distribution. The +Sun-supplied boot loader will be used to boot \*(4B; you must copy +this from your SunOS distribution. This imposes several +restrictions on the system, as detailed below. +.IP 2) +The \*(4B SPARC kernel does not remap SCSI IDs. A SCSI disk at +target 0 will become ``sd0'', where in SunOS the same disk will +normally be called ``sd3''. If your existing SunOS system is +diskful, it will be least painful to have SunOS running on the disk +on target 0 lun 0 and put \*(4B on the disk on target 3 lun 0. Both +systems will then think they are running on ``sd0'', and you can +boot either system as needed simply by changing the EEPROM's boot +device. +.IP 3) +There is no SCSI tape driver. +You must have another system for tape reading and backups. +.IP 4) +Although the \*(4B SPARC kernel will handle existing SunOS shared +libraries, it does not use or create them itself, and therefore +requires much more disk space than SunOS does. +.IP 5) +It is currently difficult (though not completely impossible) to +run \*(4B diskless. These instructions assume you will have a local +boot, swap, and root filesystem. +.IP 6) +When using a serial port rather than a graphics display as the console, +only port +.Pn ttya +can be used. +Attempts to use port +.Pn ttyb +will fail when the kernel tries +to print the boot up messages to the console. +.Sh 3 "The procedure" +.PP +You must have a spare disk on which to place \*(4B. +The steps involved in bootstrapping this tape are as follows: +.IP 1) +Bring up SunOS (preferably SunOS 4.1.x or Solaris 1.x, although +Solaris 2 may work \(em this is untested). +.IP 2) +Attach auxiliary SCSI disk(s). Format and label using the +SunOS formatting and labeling programs as needed. +Note that the root filesystem currently requires at least 10 MB; 16 MB +or more is recommended. The b partition will be used for swap; +this should be at least 32 MB. +.IP 3) +Use the SunOS +.Xr newfs +to build the root filesystem. You may also +want to build other filesystems at the same time. (By default, the +\*(4B +.Xr newfs +builds a filesystem that SunOS will not handle; if you +plan to switch OSes back and forth you may want to sacrifice the +performance gain from the new filesystem format for compatibility.) +You can build an old-format filesystem on \*(4B by giving the \-O +option to +.Xr newfs (8). +.Xr Fsck (8) +can convert old format filesystems to new format +filesystems, but not vice versa, +so you may want to initially build old format filesystems so that they +can be mounted under SunOS, +and then later convert them to new format filesystems when you are +satisfied that \*(4B is running properly. +In any case, +.B +you must build an old-style root filesystem +.R +so that the SunOS boot program will work. +.IP 4) +Mount the new root, then copy the SunOS +.Pn /boot +into place and use the SunOS ``installboot'' program +to enable disk-based booting. +Note that the filesystem must be mounted when you do the ``installboot'': +.DS +.ft CW +# mount /dev/sd3a /mnt +# cp /boot /mnt/boot +# cd /usr/kvm/mdec +# installboot /mnt/boot bootsd /dev/rsd3a +.DE +The SunOS +.Pn /boot +will load \*(4B kernels; there is no SPARCstation +bootstrap code on the distribution. Note that the SunOS +.Pn /boot +does not handle the new \*(4B filesystem format. +.IP 5) +Restore the contents of the \*(4B root filesystem. +.DS +.ft CW +# cd /mnt +# rrestore xf tapehost:/dev/nrst0 +.DE +.IP 6) +Boot the supplied kernel: +.DS +.ft CW +# halt +ok boot sd(0,3)vmunix -s [for old proms] OR +ok boot disk3 -s [for new proms] +\&... [\*(4B boot messages] +.DE +.LP +To install the remaining filesystems, use the procedure described +starting in section 2.5. +In these instructions, +.Pn /usr +should be loaded into the ``e'' partition and +.Pn /var +in the ``f'' partition. +.LP +After completing the filesystem installation you may want +to set up \*(4B to reboot automatically: +.DS +.ft CW +# halt +ok setenv boot-from sd(0,3)vmunix [for old proms] OR +ok setenv boot-device disk3 [for new proms] +.DE +If you build backwards-compatible filesystems, either with the SunOS +newfs or with the \*(4B ``\-O'' option, you can mount these under +SunOS. The SunOS fsck will, however, always think that these filesystems +are corrupted, as there are several new (previously unused) +superblock fields that are updated in \*(4B. Running ``fsck \-b32'' +and letting it ``fix'' the superblock will take care of this. +.sp 0.5 +If you wish to run SunOS binaries that use SunOS shared libraries, you +simply need to copy all the dynamic linker files from an existing +SunOS system: +.DS +.ft CW +# rcp sunos-host:/etc/ld.so.cache /etc/ +# rcp sunos-host:'/usr/lib/*.so*' /usr/lib/ +.DE +The SunOS compiler and linker should be able to produce SunOS binaries +under \*(4B, but this has not been tested. If you plan to try it you +will need the appropriate .sa files as well. +.Sh 2 "Booting the DECstation" +.Sh 3 "Supported hardware" +.LP +The hardware supported by \*(4B for the DECstation is as follows: +.TS +center box; +lw(1i) lw(4i). +CPU's T{ +R2000 based (3100) and +R3000 based (5000/200, 5000/20, 5000/25, 5000/1xx). +T} +_ +DISK's T{ +SCSI-I (tested RZ23, RZ55, RZ57, Maxtor 8760S). +T} +_ +TAPE's T{ +SCSI-I (tested DEC TK50, Archive DAT, Emulex MT02). +T} +_ +RS232 T{ +Internal DEC dc7085 and AMD 8530 based interfaces. +T} +_ +NETWORK T{ +TURBOchannel PMAD-AA and internal LANCE based interfaces. +T} +_ +GRAPHICS T{ +Terminal emulation and raw frame buffer support for +3100 (color & monochrome), +TURBOchannel PMAG-AA, PMAG-BA, PMAG-DV. +T} +_ +INPUT T{ +Standard DEC keyboard (LK201) and mouse. +T} +_ +MISC T{ +Battery-backed real time clock, +internal and TURBOchannel PMAZ-AA SCSI interfaces. +T} +.TE +.LP +Major items that are not supported include the 5000/240 +(there is code but not compiled in or tested), +R4000 based machines, FDDI and audio interfaces. +Diskless machines are not supported but booting kernels and bootstrapping +over the network is supported on the 5000 series. +.Sh 3 "The procedure" +.PP +The first file on the distribution tape is a tar file that contains +four files. +The first step requires a running UNIX (or ULTRIX) system that can +be used to extract the tar archive from the first file on the tape. +The command: +.DS +.ft CW +tar xf /dev/rmt0 +.DE +will extract the following four files: +.DS +A) root.image: \fIdd\fP image of the root filesystem +B) vmunix.tape: \fIdd\fP image for creating boot tapes +C) vmunix.net: file for booting over the network +D) root.dump: \fIdump\fP image of the root filesystem +.DE +There are three basic ways a system can be bootstrapped corresponding to the +first three files. +You may want to read the section on bootstrapping the HP300 +since many of the steps are similar. +A spare, formatted SCSI disk is also useful. +.Sh 4 "Procedure A: copy root filesystem to disk" +.PP +This procedure is similar to the HP300. +If you have an extra disk, the easiest approach is to use \fIdd\fP\|(1) +under ULTRIX to copy the root filesystem image to the beginning +of the spare disk. +The root filesystem image includes a disklabel and bootblock along with the +root filesystem. +An example command to copy the image to the beginning of a disk is: +.DS +.ft CW +dd if=root.image of=/dev/rz1c bs=\*(Bzb +.DE +The actual special file syntax will vary depending on unit numbers and +the version of ULTRIX that is running. +This system is now ready to boot. You can boot the kernel with one of the +following PROM commands. If you are booting on a 3100, the disk must be SCSI +id zero because of a bug. +.DS +.ft CW +DEC 3100: boot \-f rz(0,0,0)vmunix +DEC 5000: boot 5/rz0/vmunix +.DE +You can then proceed to section 2.5 +to create reasonable disk partitions for your machine +and then install the rest of the system. +.Sh 4 "Procedure B: bootstrap from tape" +.PP +If you have only a single machine with a single disk, +you need to use the more difficult approach of booting a +kernel and mini-root from tape or the network, and using it to restore +the root filesystem. +.PP +First, you will need to create a boot tape. This can be done using +\fIdd\fP as in the following example. +.DS +.ft CW +dd if=vmunix.tape of=/dev/nrmt0 bs=1b +dd if=root.dump of=/dev/nrmt0 bs=\*(Bzb +.DE +The actual special file syntax for the tape drive will vary depending on +unit numbers, tape device and the version of ULTRIX that is running. +.PP +The first file on the boot tape contains a boot header, kernel, and +mini-root filesystem that the PROM can copy into memory. +Installing from tape has only been tested +on a 3100 and a 5000/200 using a TK50 tape drive. Here are two example +PROM commands to boot from tape. +.DS +.ft CW +DEC 3100: boot \-f tz(0,5,0) m # 5 is the SCSI id of the TK50 +DEC 5000: boot 5/tz6 m # 6 is the SCSI id of the TK50 +.DE +The `m' argument tells the kernel to look for a root filesystem in memory. +Next you should proceed to section 2.4.3 to build a disk-based root filesystem. +.Sh 4 "Procedure C: bootstrap over the network" +.PP +You will need a host machine that is running the \fIbootp\fP server +with the +.Pn vmunix.net +file installed in the default directory defined by the +configuration file for +.Xr bootp . +Here are two example PROM commands to boot across the net: +.DS +.ft CW +DEC 3100: boot \-f tftp()vmunix.net m +DEC 5000: boot 6/tftp/vmunix.net m +.DE +This command should load the kernel and mini-root into memory and +run the same as the tape install (procedure B). +The rest of the steps are the same except +you will need to start the network +(if you are unsure how to fill in the <name> fields below, +see sections 4.4 and 5). +Execute the following to start the networking: +.DS +.ft CW +# mount \-uw / +# echo 127.0.0.1 localhost >> /etc/hosts +# echo <your.host.inet.number> myname.my.domain myname >> /etc/hosts +# echo <friend.host.inet.number> myfriend.my.domain myfriend >> /etc/hosts +# ifconfig le0 inet myname +.DE +Next you should proceed to section 2.4.3 to build a disk-based root filesystem. +.Sh 3 "Label disk and create the root filesystem" +.LP +There are five steps to create a disk-based root filesystem. +.IP 1) +Label the disk. +.DS +.ft CW +# disklabel -W /dev/rrz?c # This enables writing the label +# disklabel -w -r -B /dev/rrz?c $DISKTYPE +# newfs /dev/rrz?a +\&... +# fsck /dev/rrz?a +\&... +.DE +Supported disk types are listed in +.Pn /etc/disktab . +.IP 2) +Restore the root filesystem. +.DS +.ft CW +# mount \-uw / +# mount /dev/rz?a /a +# cd /a +.DE +.ti +0.4i +If you are restoring locally (procedure B), run: +.DS +.ft CW +# mt \-f /dev/nrmt0 rew +# restore \-xsf 2 /dev/rmt0 +.DE +.ti +0.4i +If you are restoring across the net (procedure c), run: +.DS +.ft CW +# rrestore xf myfriend:/path/to/root.dump +.DE +.ti +0.4i +When the restore finishes, clean up with: +.DS +.ft CW +# cd / +# sync +# umount /a +# fsck /dev/rz?a +.DE +.IP 3) +Reset the system and initialize the PROM monitor to boot automatically. +.DS +.ft CW +DEC 3100: setenv bootpath boot \-f rz(0,?,0)vmunix +DEC 5000: setenv bootpath 5/rz?/vmunix -a +.DE +.IP 4) +After booting UNIX, you will need to create +.Pn /dev/mouse +to run X windows as in the following example. +.DS +.ft CW +rm /dev/mouse +ln /dev/xx /dev/mouse +.DE +The 'xx' should be one of the following: +.DS +pm0 raw interface to PMAX graphics devices +cfb0 raw interface to TURBOchannel PMAG-BA color frame buffer +xcfb0 raw interface to maxine graphics devices +mfb0 raw interface to mono graphics devices +.DE +You can then proceed to section 2.5 to install the rest of the system. +Note that where the disk name ``sd'' is used throughout section 2.5, +you should substitute the name ``rz''. +.Sh 2 "Disk configuration" +.PP +All architectures now have a root filesystem up and running and +proceed from this point to layout filesystems to make use +of the available space and to balance disk load for better system +performance. +.Sh 3 "Disk naming and divisions" +.PP +Each physical disk drive can be divided into up to 8 partitions; +UNIX typically uses only 3 or 4 partitions. +For instance, the first partition, \*(Dk0a, +is used for a root filesystem, a backup thereof, +or a small filesystem like, +.Pn /var/tmp ; +the second partition, \*(Dk0b, +is used for paging and swapping; and +a third partition, typically \*(Dk0e, +holds a user filesystem. +.PP +The space available on a disk varies per device. +Each disk typically has a paging area of 30 to 100 megabytes +and a root filesystem of about 17 megabytes. +.\" XXX check +The distributed system binaries occupy about 150 (180 with X11R5) megabytes +.\" XXX check +while the major sources occupy another 250 (340 with X11R5) megabytes. +The +.Pn /var +filesystem as delivered on the tape is only 2Mb, +however it should have at least 50Mb allocated to it just for +normal system activity. +Usually it is allocated the last partition on the disk +so that it can provide as much space as possible to the +.Pn /var/users +filesystem. +See section 2.5.4 for further details on disk layouts. +.PP +Be aware that the disks have their sizes +measured in disk sectors (usually 512 bytes), while the UNIX filesystem +blocks are variable sized. +If +.Sm BLOCKSIZE=1k +is set in the user's environment, all user programs report +disk space in kilobytes, otherwise, +disk sizes are always reported in units of 512-byte sectors\**. +.FS +You can thank System V intransigence and POSIX duplicity for +requiring that 512-byte blocks be the units that programs report. +.FE +The +.Pn /etc/disktab +file used in labelling disks and making filesystems +specifies disk partition sizes in sectors. +.Sh 3 "Layout considerations" +.PP +There are several considerations in deciding how +to adjust the arrangement of things on your disks. +The most important is making sure that there is adequate space +for what is required; secondarily, throughput should be maximized. +Paging space is an important parameter. +The system, as distributed, sizes the configured +paging areas each time the system is booted. Further, +multiple paging areas of different sizes may be interleaved. +.PP +Many common system programs (C, the editor, the assembler etc.) +create intermediate files in the +.Pn /tmp +directory, so the filesystem where this is stored also should be made +large enough to accommodate most high-water marks. +Typically, +.Pn /tmp +is constructed from a memory-based filesystem (see +.Xr mount_mfs (8)). +Programs that want their temporary files to persist +across system reboots (such as editors) should use +.Pn /var/tmp . +If you plan to use a disk-based +.Pn /tmp +filesystem to avoid loss across system reboots, it makes +sense to mount this in a ``root'' (i.e. first partition) +filesystem on another disk. +All the programs that create files in +.Pn /tmp +take care to delete them, but are not immune to rare events +and can leave dregs. +The directory should be examined every so often and the old +files deleted. +.PP +The efficiency with which UNIX is able to use the CPU +is often strongly affected by the configuration of disk controllers; +it is critical for good performance to balance disk load. +There are at least five components of the disk load that you can +divide between the available disks: +.IP 1) +The root filesystem. +.IP 2) +The +.Pn /var +and +.Pn /var/tmp +filesystems. +.IP 3) +The +.Pn /usr +filesystem. +.IP 4) +The user filesystems. +.IP 5) +The paging activity. +.LP +The following possibilities are ones we have used at times +when we had 2, 3 and 4 disks: +.TS +center doublebox; +l | c s s +l | lw(5) | lw(5) | lw(5). + disks +what 2 3 4 +_ +root 0 0 0 +var 1 2 3 +usr 1 1 1 +paging 0+1 0+2 0+2+3 +users 0 0+2 0+2 +archive x x 3 +.TE +.PP +The most important things to consider are to +even out the disk load as much as possible, and to do this by +decoupling filesystems (on separate arms) between which heavy copying occurs. +Note that a long term average balanced load is not important; it is +much more important to have an instantaneously balanced +load when the system is busy. +.PP +Intelligent experimentation with a few filesystem arrangements can +pay off in much improved performance. It is particularly easy to +move the root, the +.Pn /var +and +.Pn /var/tmp +filesystems and the paging areas. Place the +user files and the +.Pn /usr +directory as space needs dictate and experiment +with the other, more easily moved filesystems. +.Sh 3 "Filesystem parameters" +.PP +Each filesystem is parameterized according to its block size, +fragment size, and the disk geometry characteristics of the +medium on which it resides. Inaccurate specification of the disk +characteristics or haphazard choice of the filesystem parameters +can result in substantial throughput degradation or significant +waste of disk space. As distributed, +filesystems are configured according to the following table. +.DS +.TS +center; +l l l. +Filesystem Block size Fragment size +_ +root 8 kbytes 1 kbytes +usr 8 kbytes 1 kbytes +users 4 kbytes 512 bytes +.TE +.DE +.PP +The root filesystem block size is +made large to optimize bandwidth to the associated disk. +The large block size is important as many of the most +heavily used programs are demand paged out of the +.Pn /bin +directory. +The fragment size of 1 kbyte is a ``nominal'' value to use +with a filesystem. With a 1 kbyte fragment size +disk space utilization is about the same +as with the earlier versions of the filesystem. +.PP +The filesystems for users have a 4 kbyte block +size with 512 byte fragment size. These parameters +have been selected based on observations of the +performance of our user filesystems. The 4 kbyte +block size provides adequate bandwidth while the +512 byte fragment size provides acceptable space compaction +and disk fragmentation. +.PP +Other parameters may be chosen in constructing filesystems, +but the factors involved in choosing a block +size and fragment size are many and interact in complex +ways. Larger block sizes result in better +throughput to large files in the filesystem as +larger I/O requests will then be done by the +system. However, +consideration must be given to the average file sizes +found in the filesystem and the performance of the +internal system buffer cache. The system +currently provides space in the inode for +12 direct block pointers, 1 single indirect block +pointer, 1 double indirect block pointer, +and 1 triple indirect block pointer. +If a file uses only direct blocks, access time to +it will be optimized by maximizing the block size. +If a file spills over into an indirect block, +increasing the block size of the filesystem may +decrease the amount of space used +by eliminating the need to allocate an indirect block. +However, if the block size is increased and an indirect +block is still required, then more disk space will be +used by the file because indirect blocks are allocated +according to the block size of the filesystem. +.PP +In selecting a fragment size for a filesystem, at least +two considerations should be given. The major performance +tradeoffs observed are between an 8 kbyte block filesystem +and a 4 kbyte block filesystem. Because of implementation +constraints, the block size versus fragment size ratio can not +be greater than 8. This means that an 8 kbyte filesystem +will always have a fragment size of at least 1 kbytes. If +a filesystem is created with a 4 kbyte block size and a +1 kbyte fragment size, then upgraded to an 8 kbyte block size +and 1 kbyte fragment size, identical space compaction will be +observed. However, if a filesystem has a 4 kbyte block size +and 512 byte fragment size, converting it to an 8K/1K +filesystem will result in 4-8% more space being +used. This implies that 4 kbyte block filesystems that +might be upgraded to 8 kbyte blocks for higher performance should +use fragment sizes of at least 1 kbytes to minimize the amount +of work required in conversion. +.PP +A second, more important, consideration when selecting the +fragment size for a filesystem is the level of fragmentation +on the disk. With an 8:1 fragment to block ratio, storage fragmentation +occurs much sooner, particularly with a busy filesystem running +near full capacity. By comparison, the level of fragmentation in a +4:1 fragment to block ratio filesystem is one tenth as severe. This +means that on filesystems where many files are created and +deleted, the 512 byte fragment size is more likely to result in apparent +space exhaustion because of fragmentation. That is, when the filesystem +is nearly full, file expansion that requires locating a +contiguous area of disk space is more likely to fail on a 512 +byte filesystem than on a 1 kbyte filesystem. To minimize +fragmentation problems of this sort, a parameter in the super +block specifies a minimum acceptable free space threshold. When +normal users (i.e. anyone but the super-user) attempt to allocate +disk space and the free space threshold is exceeded, the user is +returned an error as if the filesystem were really full. This +parameter is nominally set to 5%; it may be changed by supplying +a parameter to +.Xr newfs (8), +or by updating the super block of an existing filesystem using +.Xr tunefs (8). +.PP +Finally, a third, less common consideration is the attributes of +the disk itself. The fragment size should not be smaller than the +physical sector size of the disk. As an example, the HP magneto-optical +disks have 1024 byte physical sectors. Using a 512 byte fragment size +on such disks will work but is extremely inefficient. +.PP +Note that the above discussion considers block sizes of up to only 8k. +As of the 4.4 release, the maximum block size has been increased to 64k. +This allows an entirely new set of block/fragment combinations for which +there is little experience to date. +In general though, unless a filesystem is to be used +for a special purpose application (for example, storing +image processing data), we recommend using the +values supplied above. +Remember that the current +implementation limits the block size to at most 64 kbytes +and the ratio of block size versus fragment size must be 1, 2, 4, or 8. +.PP +The disk geometry information used by the filesystem +affects the block layout policies employed. The file +.Pn /etc/disktab , +as supplied, contains the data for most +all drives supported by the system. Before constructing +a filesystem with +.Xr newfs (8) +you should label the disk (if it has not yet been labeled, +and the driver supports labels). +If labels cannot be used, you must instead +specify the type of disk on which the filesystem resides; +.Xr newfs +then reads +.Pn /etc/disktab +instead of the pack label. +This file also contains the default +filesystem partition +sizes, and default block and fragment sizes. To +override any of the default values you can modify the file, +edit the disk label, +or use an option to +.Xr newfs . +.Sh 3 "Implementing a layout" +.PP +To put a chosen disk layout into effect, you should use the +.Xr newfs (8) +command to create each new filesystem. +Each filesystem must also be added to the file +.Pn /etc/fstab +so that it will be checked and mounted when the system is bootstrapped. +.PP +First we will consider a system with a single disk. +There is little real choice on how to do the layout; +the root filesystem goes in the ``a'' partition, +.Pn /usr +goes in the ``e'' partition, and +.Pn /var +fills out the remainder of the disk in the ``f'' partition. +This is the organization used if you loaded the disk-image root filesystem. +With the addition of a memory-based +.Pn /tmp +filesystem, its fstab entry would be as follows: +.TS +center; +lfC lfC l l n n. +/dev/\*(Dk0a / ufs rw 1 1 +/dev/\*(Dk0b none swap sw 0 0 +/dev/\*(Dk0b /tmp mfs rw,-s=14000,-b=8192,-f=1024,-T=sd660 0 0 +/dev/\*(Dk0e /usr ufs ro 1 2 +/dev/\*(Dk0f /var ufs rw 1 2 +.TE +.PP +If we had a second disk, we would split the load between the drives. +On the second disk, we place the +.Pn /usr +and +.Pn /var +filesystems in their usual \*(Dk1e and \*(Dk1f +partitions respectively. +The \*(Dk1b partition would be used as a second paging area, +and the \*(Dk1a partition left as a spare root filesystem +(alternatively \*(Dk1a could be used for +.Pn /var/tmp ). +The first disk still holds the +the root filesystem in \*(Dk0a, and the primary swap area in \*(Dk0b. +The \*(Dk0e partition is used to hold home directories in +.Pn /var/users . +The \*(Dk0f partition can be used for +.Pn /usr/src +or alternately the \*(Dk0e partition can be extended to cover +the rest of the disk with +.Xr disklabel (8). +As before, the +.Pn /tmp +directory is a memory-based filesystem. +Note that to interleave the paging between the two disks +you must build a system configuration that specifies: +.DS +config vmunix root on \*(Dk0 swap on \*(Dk0 and \*(Dk1 +.DE +The +.Pn /etc/fstab +file would then contain +.TS +center; +lfC lfC l l n n. +/dev/\*(Dk0a / ufs rw 1 1 +/dev/\*(Dk0b none swap sw 0 0 +/dev/\*(Dk1b none swap sw 0 0 +/dev/\*(Dk0b /tmp mfs rw,-s=14000,-b=8192,-f=1024,-T=sd660 0 0 +/dev/\*(Dk1e /usr ufs ro 1 2 +/dev/\*(Dk0f /usr/src ufs rw 1 2 +/dev/\*(Dk1f /var ufs rw 1 2 +/dev/\*(Dk0e /var/users ufs rw 1 2 +.TE +.PP +To make the +.Pn /var +filesystem we would do: +.DS +\fB#\fP \fIcd /dev\fP +\fB#\fP \fIMAKEDEV \*(Dk1\fP +\fB#\fP \fIdisklabel -wr \*(Dk1 "disk type" "disk name"\fP +\fB#\fP \fInewfs \*(Dk1f\fP +(information about filesystem prints out) +\fB#\fP \fImkdir /var\fP +\fB#\fP \fImount /dev/\*(Dk1f /var\fP +.DE +.Sh 2 "Installing the rest of the system" +.PP +At this point you should have your disks partitioned. +The next step is to extract the rest of the data from the tape. +At a minimum you need to set up the +.Pn /var +and +.Pn /usr +filesystems. +You may also want to extract some or all the program sources. +Since not all architectures support tape drives or don't support the +correct ones, you may need to extract the files indirectly using +.Xr rsh (1). +For example, for a directly connected tape drive you might do: +.DS +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP +\fB#\fP \fItar xbpf \*(Bz /dev/nr\*(Mt0\fP +.DE +The equivalent indirect procedure (where the tape drive is on machine ``foo'') +is: +.DS +\fB#\fP \fIrsh foo mt -f /dev/nr\*(Mt0 fsf\fP +\fB#\fP \fIrsh foo dd if=/dev/nr\*(Mt0 bs=\*(Bzb | tar xbpf \*(Bz -\fP +.DE +Obviously, the target machine must be connected to the local network +for this to work. +To do this: +.DS +\fB#\fP \fIecho 127.0.0.1 localhost >> /etc/hosts\fP +\fB#\fP \fIecho \fPyour.host.inet.number myname.my.domain myname\fI >> /etc/hosts\fP +\fB#\fP \fIecho \fPfriend.host.inet.number myfriend.my.domain myfriend\fI >> /etc/hosts\fP +\fB#\fP \fIifconfig le0 inet \fPmyname +.DE +where the ``host.inet.number'' fields are the IP addresses for your host and +the host with the tape drive +and the ``my.domain'' fields are the names of your machine and the tape-hosting +machine. +See sections 4.4 and 5 for more information on setting up the network. +.PP +Assuming a directly connected tape drive, here is how to extract and +install +.Pn /var +and +.Pn /usr : +.br +.ne 5 +.TS +lw(2i) l. +\fB#\fP \fImount \-uw /dev/\*(Dk#a /\fP (read-write mount root filesystem) +\fB#\fP \fIdate yymmddhhmm\fP (set date, see \fIdate\fP\|(1)) +\&.... +\fB#\fP \fIpasswd -l root\fP (set password for super-user) +\fBNew password:\fP (password will not echo) +\fBRetype new password:\fP +\fB#\fP \fIpasswd -l toor\fP (set password for super-user) +\fBNew password:\fP (password will not echo) +\fBRetype new password:\fP +\fB#\fP \fIhostname mysitename\fP (set your hostname) +\fB#\fP \fInewfs r\*(Dk#p\fP (create empty user filesystem) +(\fI\*(Dk\fP is the disk type, \fI#\fP is the unit number, +\fIp\fP is the partition; this takes a few minutes) +\fB#\fP \fImount /dev/\*(Dk#p /var\fP (mount the var filesystem) +\fB#\fP \fIcd /var\fP (make /var the current directory) +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +\fB#\fP \fItar xbpf \*(Bz /dev/nr\*(Mt0\fP (extract all of var) +(this takes a few minutes) +\fB#\fP \fInewfs r\*(Dk#p\fP (create empty user filesystem) +(as before \fI\*(Dk\fP is the disk type, \fI#\fP is the unit number, +\fIp\fP is the partition) +\fB#\fP \fImount /dev/\*(Dk#p /mnt\fP (mount the new /usr in temporary location) +\fB#\fP \fIcd /mnt\fP (make /mnt the current directory) +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +\fB#\fP \fItar xbpf \*(Bz /dev/nr\*(Mt0\fP (extract all of usr except usr/src) +(this takes about 15-20 minutes) +\fB#\fP \fIcd /\fP (make / the current directory) +\fB#\fP \fIumount /mnt\fP (unmount from temporary mount point) +\fB#\fP \fIrm -r /usr/*\fP (remove excess bootstrap binaries) +\fB#\fP \fImount /dev/\*(Dk#p /usr\fP (remount /usr) +.TE +If no disk label has been installed on the disk, the +.Xr newfs +command will require a third argument to specify the disk type, +using one of the names in +.Pn /etc/disktab . +If the tape had been rewound or positioned incorrectly before the +.Xr tar , +to extract +.Pn /var +it may be repositioned by the following commands. +.DS +\fB#\fP \fImt -f /dev/nr\*(Mt0 rew\fP +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf 1\fP +.DE +The data on the second and third tape files has now been extracted. +If you are using 6250bpi tapes, the first reel of the +distribution is no longer needed; you should now mount the second +reel instead. The installation procedure continues from this +point on the 8mm tape. +The next step is to extract the sources. +As previously noted, +.Pn /usr/src +.\" XXX Check +requires about 250-340Mb of space. +Ideally sources should be in a separate filesystem; +if you plan to put them into your +.Pn /usr +filesystem, it will need at least 500Mb of space. +Assuming that you will be using a separate filesystem on \*(Dk0f for +.Pn /usr/src , +you will start by creating and mounting it: +.DS +\fB#\fP \fInewfs \*(Dk0f\fP +(information about filesystem prints out) +\fB#\fP \fImkdir /usr/src\fP +\fB#\fP \fImount /dev/\*(Dk0f /usr/src\fP +.DE +.LP +First you will extract the kernel source: +.DS +.TS +lw(2i) l. +\fB#\fP \fIcd /usr/src\fP +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +(this should only be done on Exabyte distributions) +\fB#\fP \fItar xpbf \*(Bz /dev/nr\*(Mt0\fP (extract the kernel sources) +(this takes about 15-30 minutes) +.TE +.DE +.LP +The next tar file contains the sources for the utilities. +It is extracted as follows: +.DS +.TS +lw(2i) l. +\fB#\fP \fIcd /usr/src\fP +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +\fB#\fP \fItar xpbf \*(Bz /dev/rmt12\fP (extract the utility source) +(this takes about 30-60 minutes) +.TE +.DE +.PP +If you are using 6250bpi tapes, the second reel of the +distribution is no longer needed; you should now mount the third +reel instead. The installation procedure continues from this +point on the 8mm tape. +.PP +The next tar file contains the sources for the contributed software. +It is extracted as follows: +.DS +.TS +lw(2i) l. +\fB#\fP \fIcd /usr/src\fP +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +(this should only be done on Exabyte distributions) +\fB#\fP \fItar xpbf \*(Bz /dev/rmt12\fP (extract the contributed software source) +(this takes about 30-60 minutes) +.TE +.DE +.PP +If you received a distribution on 8mm Exabyte tape, +there is one additional tape file on the distribution tape +that has not been installed to this point; it contains the +sources for X11R5 in +.Xr tar (1) +format. As distributed, X11R5 should be placed in +.Pn /usr/src/X11R5 . +.DS +.TS +lw(2i) l. +\fB#\fP \fIcd /usr/src\fP +\fB#\fP \fImt -f /dev/nr\*(Mt0 fsf\fP (space to end of previous tape file) +\fB#\fP \fItar xpbf \*(Bz /dev/nr\*(Mt0\fP (extract the X11R5 source) +(this takes about 30-60 minutes) +.TE +.DE +Many of the X11 utilities search using the path +.Pn /usr/X11 , +so be sure that you have a symbolic link that points at +the location of your X11 binaries (here, X11R5). +.PP +Having now completed the extraction of the sources, +you may want to verify that your +.Pn /usr/src +filesystem is consistent. +To do so, you must unmount it, and run +.Xr fsck (8); +assuming that you used \*(Dk0f you would proceed as follows: +.DS +.TS +lw(2i) l. +\fB#\fP \fIcd /\fP (change directory, back to the root) +\fB#\fP \fIumount /usr/src\fP (unmount /usr/src) +\fB#\fP \fIfsck /dev/r\*(Dk0f\fP +.TE +.DE +The output from +.Xr fsck +should look something like: +.DS +.B +** /dev/r\*(Dk0f +** Last Mounted on /usr/src +** Phase 1 - Check Blocks and Sizes +** Phase 2 - Check Pathnames +** Phase 3 - Check Connectivity +** Phase 4 - Check Reference Counts +** Phase 5 - Check Cyl groups +23000 files, 261000 used, 39000 free (2200 frags, 4600 blocks) +.R +.DE +.PP +If there are inconsistencies in the filesystem, you may be prompted +to apply corrective action; see the +.Xr fsck (8) +or \fIFsck \(en The UNIX File System Check Program\fP (SMM:3) for more details. +.PP +To use the +.Pn /usr/src +filesystem, you should now remount it with: +.DS +\fB#\fP \fImount /dev/\*(Dk0f /usr/src\fP +.DE +or if you have made an entry for it in +.Pn /etc/fstab +you can remount it with: +.DS +\fB#\fP \fImount /usr/src\fP +.DE +.Sh 2 "Additional conversion information" +.PP +After setting up the new \*(4B filesystems, you may restore the user +files that were saved on tape before beginning the conversion. +Note that the \*(4B +.Xr restore +program does its work on a mounted filesystem using normal system operations. +This means that filesystem dumps may be restored even +if the characteristics of the filesystem changed. +To restore a dump tape for, say, the +.Pn /a +filesystem something like the following would be used: +.DS +\fB#\fP \fImkdir /a\fP +\fB#\fP \fInewfs \*(Dk#p\fI +\fB#\fP \fImount /dev/\*(Dk#p /a\fP +\fB#\fP \fIcd /a\fP +\fB#\fP \fIrestore x\fP +.DE +.PP +If +.Xr tar +images were written instead of doing a dump, you should +be sure to use its `\-p' option when reading the files back. No matter +how you restore a filesystem, be sure to unmount it and and check its +integrity with +.Xr fsck (8) +when the job is complete. diff --git a/share/doc/smm/01.setup/3.t b/share/doc/smm/01.setup/3.t new file mode 100644 index 0000000..b0f0c2b --- /dev/null +++ b/share/doc/smm/01.setup/3.t @@ -0,0 +1,2001 @@ +.\" Copyright (c) 1980, 1986, 1988, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)3.t 8.1 (Berkeley) 7/27/93 +.\" +.ds lq `` +.ds rq '' +.ds RH "Upgrading a \*(Ps System +.ds CF \*(Dy +.Sh 1 "Upgrading a \*(Ps system" +.PP +This section describes the procedure for upgrading a \*(Ps +system to \*(4B. This procedure may vary according to the version of +the system running before conversion. +If you are converting from a +System V system, some of this section will still apply (in particular, +the filesystem conversion). However, many of the system configuration +files are different, and the executable file formats are completely +incompatible. +.PP +In particular be wary when using this information to upgrade +a \*(Ps HP300 system. +There are at least four different versions of ``\*(Ps'' out there: +.IP 1) +HPBSD 1.x from Utah. +.br +This was the original version of \*(Ps for HP300s from which the +other variants (and \*(4B) are derived. +It is largely a \*(Ps system with Sun's NFS 3.0 filesystem code and +some \*(Ps-Tahoe features (e.g. networking code). +Since the filesystem code is 4.2/4.3 vintage and the filesystem +hierarchy is largely \*(Ps, most of this section should apply. +.IP 2) +MORE/bsd from Mt. Xinu. +.br +This is a \*(Ps-Tahoe vintage system with Sun's NFS 4.0 filesystem code +upgraded with Tahoe UFS features. +The instructions for \*(Ps-Tahoe should largely apply. +.IP 3) +\*(Ps-Reno from CSRG. +.br +At least one site bootstrapped HP300 support from the Reno distribution. +The Reno filesystem code was somewhere between \*(Ps and \*(4B: the VFS switch +had been added but many of the UFS features (e.g. ``inline'' symlinks) +were missing. +The filesystem hierarchy reorganization first appeared in this release. +Be extremely careful following these instructions if you are +upgrading from the Reno distribution. +.IP 4) +HPBSD 2.0 from Utah. +.br +As if things were not bad enough already, +this release has the \*(4B filesystem and networking code +as well as some utilities, but still has a \*(Ps hierarchy. +No filesystem conversions are necessary for this upgrade, +but files will still need to be moved around. +.Sh 2 "Installation overview" +.PP +If you are running \*(Ps, upgrading your system +involves replacing your kernel and system utilities. +In general, there are three possible ways to install a new \*(Bs distribution: +(1) boot directly from the distribution tape, use it to load new binaries +onto empty disks, and then merge or restore any existing configuration files +and filesystems; +(2) use an existing \*(Ps or later system to extract the root and +.Pn /usr +filesystems from the distribution tape, +boot from the new system, then merge or restore existing +configuration files and filesystems; or +(3) extract the sources from the distribution tape onto an existing system, +and use that system to cross-compile and install \*(4B. +For this release, the second alternative is strongly advised, +with the third alternative reserved as a last resort. +In general, older binaries will continue to run under \*(4B, +but there are many exceptions that are on the critical path +for getting the system running. +Ideally, the new system binaries (root and +.Pn /usr +filesystems) should be installed on spare disk partitions, +then site-specific files should be merged into them. +Once the new system is up and fully merged, the previous root and +.Pn /usr +filesystems can be reused. +Other existing filesystems can be retained and used, +except that (as usual) the new +.Xr fsck +should be run before they are mounted. +.PP +It is \fBSTRONGLY\fP advised that you make full dumps of each filesystem +before beginning, especially any that you intend to modify in place +during the merge. +It is also desirable to run filesystem checks +of all filesystems to be converted to \*(4B before shutting down. +This is an excellent time to review your disk configuration +for possible tuning of the layout. +Most systems will need to provide a new filesystem for system use +mounted on +.Pn /var +(see below). +However, the +.Pn /tmp +filesystem can be an MFS virtual-memory-resident filesystem, +potentially freeing an existing disk partition. +(Additional swap space may be desirable as a consequence.) +See +.Xr mount_mfs (8). +.PP +The recommended installation procedure includes the following steps. +The order of these steps will probably vary according to local needs. +.IP \(bu +Extract root and +.Pn /usr +filesystems from the distribution tapes. +.IP \(bu +Extract kernel and/or user-level sources from the distribution tape +if space permits. +This can serve as the backup documentation as needed. +.IP \(bu +Configure and boot a kernel for the local system. +This can be delayed if the generic kernel from the distribution +supports enough hardware to proceed. +.IP \(bu +Build a skeletal +.Pn /var +filesystem (see +.Xr mtree (8)). +.IP \(bu +Merge site-dependent configuration files from +.Pn /etc +and +.Pn /usr/lib +into the new +.Pn /etc +directory. +Note that many file formats and contents have changed; see section 3.4 +of this document. +.IP \(bu +Copy or merge files from +.Pn /usr/adm , +.Pn /usr/spool , +.Pn /usr/preserve , +.Pn /usr/lib , +and other locations into +.Pn /var . +.IP \(bu +Merge local macros, dictionaries, etc. into +.Pn /usr/share . +.IP \(bu +Merge and update local software to reflect the system changes. +.IP \(bu +Take off the rest of the morning, you've earned it! +.PP +Section 3.2 lists the files to be saved as part of the conversion process. +Section 3.3 describes the bootstrap process. +Section 3.4 discusses the merger of the saved files back into the new system. +Section 3.5 gives an overview of the major +bug fixes and changes between \*(Ps and \*(4B. +Section 3.6 provides general hints on possible problems to be +aware of when converting from \*(Ps to \*(4B. +.Sh 2 "Files to save" +.PP +The following list enumerates the standard set of files you will want to +save and suggests directories in which site-specific files should be present. +This list will likely be augmented with non-standard files you +have added to your system. +If you do not have enough space to create parallel +filesystems, you should create a +.Xr tar +image of the following files before the new filesystems are created. +The rest of this subsection describes where theses files +have moved and how they have changed. +.TS +lfC c l. +/.cshrc \(dg root csh startup script (moves to \f(CW/root/.cshrc\fP) +/.login \(dg root csh login script (moves to \f(CW/root/.login\fP) +/.profile \(dg root sh startup script (moves to \f(CW/root/.profile\fP) +/.rhosts \(dg for trusted machines and users (moves to \f(CW/root/.rhosts\fP) +/etc/disktab \(dd in case you changed disk partition sizes +/etc/fstab * disk configuration data +/etc/ftpusers \(dg for local additions +/etc/gettytab \(dd getty database +/etc/group * group data base +/etc/hosts \(dg for local host information +/etc/hosts.equiv \(dg for local host equivalence information +/etc/hosts.lpd \(dg printer access file +/etc/inetd.conf * Internet services configuration data +/etc/named* \(dg named configuration files +/etc/netstart \(dg network initialization +/etc/networks \(dg for local network information +/etc/passwd * user data base +/etc/printcap * line printer database +/etc/protocols \(dd in case you added any local protocols +/etc/rc * for any local additions +/etc/rc.local * site specific system startup commands +/etc/remote \(dg auto-dialer configuration +/etc/services \(dd for local additions +/etc/shells \(dd list of valid shells +/etc/syslog.conf * system logger configuration +/etc/securettys * merged into ttys +/etc/ttys * terminal line configuration data +/etc/ttytype * merged into ttys +/etc/termcap \(dd for any local entries that may have been added +/lib \(dd for any locally developed language processors +/usr/dict/* \(dd for local additions to words and papers +/usr/include/* \(dd for local additions +/usr/lib/aliases * mail forwarding data base (moves to \f(CW/etc/aliases\fP) +/usr/lib/crontab * cron daemon data base (moves to \f(CW/etc/crontab\fP) +/usr/lib/crontab.local * local cron daemon data base (moves to \f(CW/etc/crontab.local\fP) +/usr/lib/lib*.a \(dg for local libraries +/usr/lib/mail.rc \(dg system-wide mail(1) initialization (moves to \f(CW/etc/mail.rc\fP) +/usr/lib/sendmail.cf * sendmail configuration (moves to \f(CW/etc/sendmail.cf\fP) +/usr/lib/tmac/* \(dd for locally developed troff/nroff macros (moves to \f(CW/usr/share/tmac/*\fP) +/usr/lib/uucp/* \(dg for local uucp configuration files +/usr/man/manl * for manual pages for locally developed programs (moves to \f(CW/usr/local/man\fP) +/usr/spool/* \(dg for current mail, news, uucp files, etc. (moves to \f(CW/var/spool\fP) +/usr/src/local \(dg for source for locally developed programs +/sys/conf/HOST \(dg configuration file for your machine (moves to \f(CW/sys/<arch>/conf\fP) +/sys/conf/files.HOST \(dg list of special files in your kernel (moves to \f(CW/sys/<arch>/conf\fP) +/*/quotas * filesystem quota files (moves to \f(CW/*/quotas.user\fP) +.TE +.DS +\(dg\|Files that can be used from \*(Ps without change. +\(dd\|Files that need local changes merged into \*(4B files. +*\|Files that require special work to merge and are discussed in section 3.4. +.DE +.Sh 2 "Installing \*(4B" +.PP +The next step is to build a working \*(4B system. +This can be done by following the steps in section 2 of +this document for extracting the root and +.Pn /usr +filesystems from the distribution tape onto unused disk partitions. +For the SPARC, the root filesystem dump on the tape could also be +extracted directly. +For the HP300 and DECstation, the raw disk image can be copied +into an unused partition and this partition can then be dumped +to create an image that can be restored. +The exact procedure chosen will depend on the disk configuration +and the number of suitable disk partitions that may be used. +It is also desirable to run filesystem checks +of all filesystems to be converted to \*(4B before shutting down. +In any case, this is an excellent time to review your disk configuration +for possible tuning of the layout. +Section 2.5 and +.Xr config (8) +are required reading. +.LP +The filesystem in \*(4B has been reorganized in an effort to +meet several goals: +.IP 1) +The root filesystem should be small. +.IP 2) +There should be a per-architecture centrally-shareable read-only +.Pn /usr +filesystem. +.IP 3) +Variable per-machine directories should be concentrated below +a single mount point named +.Pn /var . +.IP 4) +Site-wide machine independent shareable text files should be separated +from architecture specific binary files and should be concentrated below +a single mount point named +.Pn /usr/share . +.LP +These goals are realized with the following general layouts. +The reorganized root filesystem has the following directories: +.TS +lfC l. +/etc (config files) +/bin (user binaries needed when single-user) +/sbin (root binaries needed when single-user) +/local (locally added binaries used only by this machine) +/tmp (mount point for memory based filesystem) +/dev (local devices) +/home (mount point for AMD) +/var (mount point for per-machine variable directories) +/usr (mount point for multiuser binaries and files) +.TE +.LP +The reorganized +.Pn /usr +filesystem has the following directories: +.TS +lfC l. +/usr/bin (user binaries) +/usr/contrib (software contributed to \*(4B) +/usr/games (binaries for games, score files in \f(CW/var\fP) +/usr/include (standard include files) +/usr/lib (lib*.a from old \f(CW/usr/lib\fP) +/usr/libdata (databases from old \f(CW/usr/lib\fP) +/usr/libexec (executables from old \f(CW/usr/lib\fP) +/usr/local (locally added binaries used site-wide) +/usr/old (deprecated binaries) +/usr/sbin (root binaries) +/usr/share (mount point for site-wide shared text) +/usr/src (mount point for sources) +.TE +.LP +The reorganized +.Pn /usr/share +filesystem has the following directories: +.TS +lfC l. +/usr/share/calendar (various useful calendar files) +/usr/share/dict (dictionaries) +/usr/share/doc (\*(4B manual sources) +/usr/share/games (games text files) +/usr/share/groff_font (groff font information) +/usr/share/man (typeset manual pages) +/usr/share/misc (dumping ground for random text files) +/usr/share/mk (templates for \*(4B makefiles) +/usr/share/skel (template user home directory files) +/usr/share/tmac (various groff macro packages) +/usr/share/zoneinfo (information on time zones) +.TE +.LP +The reorganized +.Pn /var +filesystem has the following directories: +.TS +lfC l. +/var/account (accounting files, formerly \f(CW/usr/adm\fP) +/var/at (\fIat\fP\|(1) spooling area) +/var/backups (backups of system files) +/var/crash (crash dumps) +/var/db (system-wide databases, e.g. tags) +/var/games (score files) +/var/log (log files) +/var/mail (users mail) +/var/obj (hierarchy to build \f(CW/usr/src\fP) +/var/preserve (preserve area for vi) +/var/quotas (directory to store quota files) +/var/run (directory to store *.pid files) +/var/rwho (rwho databases) +/var/spool/ftp (home directory for anonymous ftp) +/var/spool/mqueue (sendmail spooling directory) +/var/spool/news (news spooling area) +/var/spool/output (printer spooling area) +/var/spool/uucp (uucp spooling area) +/var/tmp (disk-based temporary directory) +/var/users (root of per-machine user home directories) +.TE +.PP +The \*(4B bootstrap routines pass the identity of the boot device +through to the kernel. +The kernel then uses that device as its root filesystem. +Thus, for example, if you boot from +.Pn /dev/\*(Dk1a , +the kernel will use +.Pn \*(Dk1a +as its root filesystem. If +.Pn /dev/\*(Dk1b +is configured as a swap partition, +it will be used as the initial swap area, +otherwise the normal primary swap area (\c +.Pn /dev/\*(Dk0b ) +will be used. +The \*(4B bootstrap is backward compatible with \*(Ps, +so you can replace your old bootstrap if you use it +to boot your first \*(4B kernel. +However, the \*(Ps bootstrap cannot access \*(4B filesystems, +so if you plan to convert your filesystems to \*(4B, +you must install a new bootstrap \fIbefore\fP doing the conversion. +Note that SPARC users cannot build a \*(4B compatible version +of the bootstrap, so must \fInot\fP convert their root filesystem +to the new \*(4B format. +.PP +Once you have extracted the \*(4B system and booted from it, +you will have to build a kernel customized for your configuration. +If you have any local device drivers, +they will have to be incorporated into the new kernel. +See section 4.1.3 and ``Building 4.3BSD UNIX Systems with Config'' (SMM:2). +.PP +If converting from \*(Ps, your old filesystems should be converted. +If you've modified the partition +sizes from the original \*(Ps ones, and are not already using the +\*(4B disk labels, you will have to modify the default disk partition +tables in the kernel. Make the necessary table changes and boot +your custom kernel \fBBEFORE\fP trying to access any of your old +filesystems! After doing this, if necessary, the remaining filesystems +may be converted in place by running the \*(4B version of +.Xr fsck (8) +on each filesystem and allowing it to make the necessary corrections. +The new version of +.Xr fsck +is more strict about the size of directories than +the version supplied with \*(Ps. +Thus the first time that it is run on a \*(Ps filesystem, +it will produce messages of the form: +.DS +\fBDIRECTORY ...: LENGTH\fP xx \fBNOT MULTIPLE OF 512 (ADJUSTED)\fP +.DE +Length ``xx'' will be the size of the directory; +it will be expanded to the next multiple of 512 bytes. +The new +.Xr fsck +will also set default \fIinterleave\fP and +\fInpsect\fP (number of physical sectors per track) values on older +filesystems, in which these fields were unused spares; this correction +will produce messages of the form: +.DS +\fBIMPOSSIBLE INTERLEAVE=0 IN SUPERBLOCK (SET TO DEFAULT)\fP\** +\fBIMPOSSIBLE NPSECT=0 IN SUPERBLOCK (SET TO DEFAULT)\fP +.DE +.FS +The defaults are to set \fIinterleave\fP to 1 and +\fInpsect\fP to \fInsect\fP. +This is correct on most drives; +it affects only performance (usually virtually unmeasurably). +.FE +Filesystems that have had their interleave and npsect values +set will be diagnosed by the old +.Xr fsck +as having a bad superblock; the old +.Xr fsck +will run only if given an alternate superblock +(\fIfsck \-b32\fP), +in which case it will re-zero these fields. +The \*(4B kernel will internally set these fields to their defaults +if fsck has not done so; again, the \fI\-b32\fP option may be +necessary for running the old +.Xr fsck . +.PP +In addition, \*(4B removes several limits on filesystem sizes +that were present in \*(Ps. +The limited filesystems +continue to work in \*(4B, but should be converted +as soon as it is convenient +by running +.Xr fsck +with the \fI\-c 2\fP option. +The sequence \fIfsck \-p \-c 2\fP will update them all, +fix the interleave and npsect fields, +fix any incorrect directory lengths, +expand maximum uid's and gid's to 32-bits, +place symbolic links less than 60 bytes into their inode, +and fill in directory type fields all at once. +The new filesystem formats are incompatible with older systems. +If you wish to continue using these filesystems with the older +systems you should make only the compatible changes using +\fIfsck \-c 1\fP. +.Sh 2 "Merging your files from \*(Ps into \*(4B" +.PP +When your system is booting reliably and you have the \*(4B root and +.Pn /usr +filesystems fully installed you will be ready +to continue with the next step in the conversion process, +merging your old files into the new system. +.PP +If you saved the files on a +.Xr tar +tape, extract them into a scratch directory, say +.Pn /usr/convert : +.DS +\fB#\fP \fImkdir /usr/convert\fP +\fB#\fP \fIcd /usr/convert\fP +\fB#\fP \fItar xp\fP +.DE +.PP +The data files marked in the previous table with a dagger (\(dg) +may be used without change from the previous system. +Those data files marked with a double dagger (\(dd) have syntax +changes or substantial enhancements. +You should start with the \*(4B version and carefully +integrate any local changes into the new file. +Usually these local changes can be incorporated +without conflict into the new file; +some exceptions are noted below. +The files marked with an asterisk (*) require +particular attention and are discussed below. +.PP +As described in section 3.3, +the most immediately obvious change in \*(4B is the reorganization +of the system filesystems. +Users of certain recent vendor releases have seen this general organization, +although \*(4B takes the reorganization a bit further. +The directories most affected are +.Pn /etc , +that now contains only system configuration files; +.Pn /var , +a new filesystem containing per-system spool and log files; and +.Pn /usr/share, +that contains most of the text files shareable across architectures +such as documentation and macros. +System administration programs formerly in +.Pn /etc +are now found in +.Pn /sbin +and +.Pn /usr/sbin . +Various programs and data files formerly in +.Pn /usr/lib +are now found in +.Pn /usr/libexec +and +.Pn /usr/libdata , +respectively. +Administrative files formerly in +.Pn /usr/adm +are in +.Pn /var/account +and, similarly, log files are now in +.Pn /var/log . +The directory +.Pn /usr/ucb +has been merged into +.Pn /usr/bin , +and the sources for programs in +.Pn /usr/bin +are in +.Pn /usr/src/usr.bin . +Other source directories parallel the destination directories; +.Pn /usr/src/etc +has been greatly expanded, and +.Pn /usr/src/share +is new. +The source for the manual pages, in general, are with the source +code for the applications they document. +Manual pages not closely corresponding to an application program +are found in +.Pn /usr/src/share/man . +The locations of all man pages is listed in +.Pn /usr/src/share/man/man0/man[1-8] . +The manual page +.Xr hier (7) +has been updated and made more detailed; +it is included in the printed documentation. +You should review it to familiarize yourself with the new layout. +.PP +A new utility, +.Xr mtree (8), +is provided to build and check filesystem hierarchies +with the proper contents, owners and permissions. +Scripts are provided in +.Pn /etc/mtree +(and +.Pn /usr/src/etc/mtree ) +for the root, +.Pn /usr +and +.Pn /var +filesystems. +Once a filesystem has been made for +.Pn /var , +.Xr mtree +can be used to create a directory hierarchy there +or you can simply use tar to extract the prototype from +the second file of the distribution tape. +.Sh 3 "Changes in the \f(CW/etc\fP directory" +.PP +The +.Pn /etc +directory now contains nearly all the host-specific configuration +files. +Note that some file formats have changed, +and those configuration files containing pathnames are nearly all affected +by the reorganization. +See the examples provided in +.Pn /etc +(installed from +.Pn /usr/src/etc ) +as a guide. +The following table lists some of the local configuration files +whose locations and/or contents have changed. +.TS +l l l +lfC lfC l. +\*(Ps and Earlier \*(4B Comments +_ _ _ +/etc/fstab /etc/fstab new format; see below +/etc/inetd.conf /etc/inetd.conf pathnames of executables changed +/etc/printcap /etc/printcap pathnames changed +/etc/syslog.conf /etc/syslog.conf pathnames of log files changed +/etc/ttys /etc/ttys pathnames of executables changed +/etc/passwd /etc/master.passwd new format; see below +/usr/lib/sendmail.cf /etc/sendmail.cf changed pathnames +/usr/lib/aliases /etc/aliases may contain changed pathnames +/etc/*.pid /var/run/*.pid + +.T& +l l l +lfC lfC l. +New in \*(Ps-Tahoe \*(4B Comments +_ _ _ +/usr/games/dm.config /etc/dm.conf configuration for games (see \fIdm\fP\|(8)) +/etc/zoneinfo/localtime /etc/localtime timezone configuration +/etc/zoneinfo /usr/share/zoneinfo timezone configuration +.TE +.ne 1.5i +.TS +l l l +lfC lfC l. + New in \*(4B Comments +_ _ _ + /etc/aliases.db database version of the aliases file + /etc/amd-home location database of home directories + /etc/amd-vol location database of exported filesystems + /etc/changelist \f(CW/etc/security\fP files to back up + /etc/csh.cshrc system-wide csh(1) initialization file + /etc/csh.login system-wide csh(1) login file + /etc/csh.logout system-wide csh(1) logout file + /etc/disklabels directory for saving disklabels + /etc/exports NFS list of export permissions + /etc/ftpwelcome message displayed for ftp users; see ftpd(8) + /etc/kerberosIV Kerberos directory; see below + /etc/man.conf lists directories searched by \fIman\fP\|(1) + /etc/mtree directory for local mtree files; see mtree(8) + /etc/netgroup NFS group list used in \f(CW/etc/exports\fP + /etc/pwd.db non-secure hashed user data base file + /etc/spwd.db secure hashed user data base file + /etc/security daily system security checker +.TE +.PP +System security changes require adding several new ``well-known'' groups to +.Pn /etc/group . +The groups that are needed by the system as distributed are: +.TS +l n l. +name number purpose +_ +wheel 0 users allowed superuser privilege +daemon 1 processes that need less than wheel privilege +kmem 2 read access to kernel memory +sys 3 access to kernel sources +tty 4 access to terminals +operator 5 read access to raw disks +bin 7 group for system binaries +news 8 group for news +wsrc 9 write access to sources +games 13 access to games +staff 20 system staff +guest 31 system guests +nobody 39 the least privileged group +utmp 45 access to utmp files +dialer 117 access to remote ports and dialers +.TE +Only users in the ``wheel'' group are permitted to +.Xr su +to ``root''. +Most programs that manage directories in +.Pn /var/spool +now run set-group-id to ``daemon'' so that users cannot +directly access the files in the spool directories. +The special files that access kernel memory, +.Pn /dev/kmem +and +.Pn /dev/mem , +are made readable only by group ``kmem''. +Standard system programs that require this access are +made set-group-id to that group. +The group ``sys'' is intended to control access to kernel sources, +and other sources belong to group ``wsrc.'' +Rather than make user terminals writable by all users, +they are now placed in group ``tty'' and made only group writable. +Programs that should legitimately have access to write on user terminals +such as +.Xr talkd +and +.Xr write +now run set-group-id to ``tty''. +The ``operator'' group controls access to disks. +By default, disks are readable by group ``operator'', +so that programs such as +.Xr dump +can access the filesystem information without being set-user-id to ``root''. +The +.Xr shutdown (8) +program is executable only by group operator +and is setuid to root so that members of group operator may shut down +the system without root access. +.PP +The ownership and modes of some directories have changed. +The +.Xr at +programs now run set-user-id ``root'' instead of ``daemon.'' +Also, the uucp directory no longer needs to be publicly writable, +as +.Xr tip +reverts to privileged status to remove its lock files. +After copying your version of +.Pn /var/spool , +you should do: +.DS +\fB#\fP \fIchown \-R root /var/spool/at\fP +\fB#\fP \fIchown \-R uucp.daemon /var/spool/uucp\fP +\fB#\fP \fIchmod \-R o\-w /var/spool/uucp\fP +.DE +.PP +The format of the cron table, +.Pn /etc/crontab , +has been changed to specify the user-id that should be used to run a process. +The userid ``nobody'' is frequently useful for non-privileged programs. +Local changes are now put in a separate file, +.Pn /etc/crontab.local . +.PP +Some of the commands previously in +.Pn /etc/rc.local +have been moved to +.Pn /etc/rc ; +several new functions are now handled by +.Pn /etc/rc , +.Pn /etc/netstart +and +.Pn /etc/rc.local . +You should look closely at the prototype version of these files +and read the manual pages for the commands contained in it +before trying to merge your local copy. +Note in particular that +.Xr ifconfig +has had many changes, +and that host names are now fully specified as domain-style names +(e.g., vangogh.CS.Berkeley.EDU) for the benefit of the name server. +.PP +Some of the commands previously in +.Pn /etc/daily +have been moved to +.Pn /etc/security , +and several new functions have been added to +.Pn /etc/security +to do nightly security checks on the system. +The script +.Pn /etc/daily +runs +.Pn /etc/security +each night, and mails the output to the super-user. +Some of the checks done by +.Pn /etc/security +are: +.DS +\(bu Syntax errors in the password and group files. +\(bu Duplicate user and group names and id's. +\(bu Dangerous search paths and umask values for the superuser. +\(bu Dangerous values in various initialization files. +\(bu Dangerous .rhosts files. +\(bu Dangerous directory and file ownership or permissions. +\(bu Globally exported filesystems. +\(bu Dangerous owners or permissions for special devices. +.DE +In addition, it reports any changes to setuid and setgid files, special +devices, or the files in +.Pn /etc/changelist +since the last run of +.Pn /etc/security . +Backup copies of the files are saved in +.Pn /var/backups . +Finally, the system binaries are checksummed and their permissions +validated against the +.Xr mtree (8) +specifications in +.Pn /etc/mtree . +.PP +The C-library and system binaries on the distribution tape +are compiled with new versions of +.Xr gethostbyname +and +.Xr gethostbyaddr +that use the name server, +.Xr named (8). +If you have only a small network and are not connected +to a large network, you can use the distributed library routines without +any problems; they use a linear scan of the host table +.Pn /etc/hosts +if the name server is not running. +If you are on the Internet or have a large local network, +it is recommend that you set up +and use the name server. +For instructions on how to set up the necessary configuration files, +refer to ``Name Server Operations Guide for BIND'' (SMM:10). +Several programs rely on the host name returned by +.Xr gethostname +to determine the local domain name. +.PP +If you are using the name server, your +.Xr sendmail +configuration file will need some updates to accommodate it. +See the ``Sendmail Installation and Operation Guide'' (SMM:8) and +the sample +.Xr sendmail +configuration files in +.Pn /usr/src/usr.sbin/sendmail/cf . +The aliases file, +.Pn /etc/aliases +has also been changed to add certain well-known addresses. +.Sh 3 "Shadow password files" +.PP +The password file format adds change and expiration fields +and its location has changed to protect +the encrypted passwords stored there. +The actual password file is now stored in +.Pn /etc/master.passwd . +The hashed dbm password files do not contain encrypted passwords, +but contain the file offset to the entry with the password in +.Pn /etc/master.passwd +(that is readable only by root). +Thus, the +.Fn getpwnam +and +.Fn getpwuid +functions will no longer return an encrypted password string to non-root +callers. +An old-style passwd file is created in +.Pn /etc/passwd +by the +.Xr vipw (8) +and +.Xr pwd_mkdb (8) +programs. +See also +.Xr passwd (5). +.PP +Several new users have also been added to the group of ``well-known'' users in +.Pn /etc/passwd . +The current list is: +.DS +.TS +l c. +name number +_ +root 0 +daemon 1 +operator 2 +bin 3 +games 7 +uucp 66 +nobody 32767 +.TE +.DE +The ``daemon'' user is used for daemon processes that +do not need root privileges. +The ``operator'' user-id is used as an account for dumpers +so that they can log in without having the root password. +By placing them in the ``operator'' group, +they can get read access to the disks. +The ``uucp'' login has existed long before \*(4B, +and is noted here just to provide a common user-id. +The password entry ``nobody'' has been added to specify +the user with least privilege. The ``games'' user is a pseudo-user +that controls access to game programs. +.PP +After installing your updated password file, you must run +.Xr pwd_mkdb (8) +to create the password database. +Note that +.Xr pwd_mkdb (8) +is run whenever +.Xr vipw (8) +is run. +.Sh 3 "The \f(CW/var\fP filesystem" +.PP +The spooling directories saved on tape may be restored in their +eventual resting places without too much concern. Be sure to +use the `\-p' option to +.Xr tar (1) +so that files are recreated with the same file modes. +The following commands provide a guide for copying spool and log files from +an existing system into a new +.Pn /var +filesystem. +At least the following directories should already exist on +.Pn /var : +.Pn output , +.Pn log , +.Pn backups +and +.Pn db . +.LP +.DS +.ft CW +SRC=/oldroot/usr + +cd $SRC; tar cf - msgs preserve | (cd /var && tar xpf -) +.DE +.DS +.ft CW +# copy $SRC/spool to /var +cd $SRC/spool +tar cf - at mail rwho | (cd /var && tar xpf -) +tar cf - ftp mqueue news secretmail uucp uucppublic | \e + (cd /var/spool && tar xpf -) +.DE +.DS +.ft CW +# everything else in spool is probably a printer area +mkdir .save +mv at ftp mail mqueue rwho secretmail uucp uucppublic .save +tar cf - * | (cd /var/spool/output && tar xpf -) +mv .save/* . +rmdir .save +.DE +.DS +.ft CW +cd /var/spool/mqueue +mv syslog.7 /var/log/maillog.7 +mv syslog.6 /var/log/maillog.6 +mv syslog.5 /var/log/maillog.5 +mv syslog.4 /var/log/maillog.4 +mv syslog.3 /var/log/maillog.3 +mv syslog.2 /var/log/maillog.2 +mv syslog.1 /var/log/maillog.1 +mv syslog.0 /var/log/maillog.0 +mv syslog /var/log/maillog +.DE +.DS +.ft CW +# move $SRC/adm to /var +cd $SRC/adm +tar cf - . | (cd /var/account && tar xpf -) +cd /var/account +rm -f msgbuf +mv messages messages.[0-9] ../log +mv wtmp wtmp.[0-9] ../log +mv lastlog ../log +.DE +.Sh 2 "Bug fixes and changes between \*(Ps and \*(4B" +.PP +The major new facilities available in the \*(4B release are +a new virtual memory system, +the addition of ISO/OSI networking support, +a new virtual filesystem interface supporting filesystem stacking, +a freely redistributable implementation of NFS, +a log-structured filesystem, +enhancement of the local filesystems to support +files and filesystems that are up to 2^63 bytes in size, +enhanced security and system management support, +and the conversion to and addition of the IEEE Std1003.1 (``POSIX'') +facilities and many of the IEEE Std1003.2 facilities. +In addition, many new utilities and additions to the C +library are present as well. +The kernel sources have been reorganized to collect all machine-dependent +files for each architecture under one directory, +and most of the machine-independent code is now free of code +conditional on specific machines. +The user structure and process structure have been reorganized +to eliminate the statically-mapped user structure and to make most +of the process resources shareable by multiple processes. +The system and include files have been converted to be compatible +with ANSI C, including function prototypes for most of the exported +functions. +There are numerous other changes throughout the system. +.Sh 3 "Changes to the kernel" +.PP +This release includes several important structural kernel changes. +The kernel uses a new internal system call convention; +the use of global (``u-dot'') variables for parameters and error returns +has been eliminated, +and interrupted system calls no longer abort using non-local goto's (longjmp's). +A new sleep interface separates signal handling from scheduling priority, +returning characteristic errors to abort or restart the current system call. +This sleep call also passes a string describing the process state, +that is used by the ps(1) program. +The old sleep interface can be used only for non-interruptible sleeps. +The sleep interface (\fItsleep\fP) can be used at any priority, +but is only interruptible if the PCATCH flag is set. +When interrupted, \fItsleep\fP returns EINTR or ERESTART. +.PP +Many data structures that were previously statically allocated +are now allocated dynamically. +These structures include mount entries, file entries, +user open file descriptors, the process entries, the vnode table, +the name cache, and the quota structures. +.PP +To protect against indiscriminate reading or writing of kernel +memory, all writing and most reading of kernel data structures +must be done using a new ``sysctl'' interface. +The information to be accessed is described through an extensible +``Management Information Base'' (MIB) style name, +described as a dotted set of components. +A new utility, +.Xr sysctl (8), +retrieves kernel state and allows processes with appropriate +privilege to set kernel state. +.Sh 3 "Security" +.PP +The kernel runs with four different levels of security. +Any superuser process can raise the security level, but only +.Fn init (8) +can lower it. +Security levels are defined as follows: +.IP \-1 +Permanently insecure mode \- always run system in level 0 mode. +.IP " 0" +Insecure mode \- immutable and append-only flags may be turned off. +All devices may be read or written subject to their permissions. +.IP " 1" +Secure mode \- immutable and append-only flags may not be cleared; +disks for mounted filesystems, +.Pn /dev/mem , +and +.Pn /dev/kmem +are read-only. +.IP " 2" +Highly secure mode \- same as secure mode, plus disks are always +read-only whether mounted or not. +This level precludes tampering with filesystems by unmounting them, +but also inhibits running +.Xr newfs (8) +while the system is multi-user. +See +.Xr chflags (1) +and the \-\fBo\fP option to +.Xr ls (1) +for information on setting and displaying the immutable and append-only +flags. +.PP +Normally, the system runs in level 0 mode while single user +and in level 1 mode while multiuser. +If the level 2 mode is desired while running multiuser, +it can be set in the startup script +.Pn /etc/rc +using +.Xr sysctl (1). +If it is desired to run the system in level 0 mode while multiuser, +the administrator must build a kernel with the variable +.Li securelevel +in the kernel source file +.Pn /sys/kern/kern_sysctl.c +initialized to \-1. +.Sh 4 "Virtual memory changes" +.PP +The new virtual memory implementation is derived from the Mach +operating system developed at Carnegie-Mellon, +and was ported to the BSD kernel at the University of Utah. +It is based on the 2.0 release of Mach +(with some bug fixes from the 2.5 and 3.0 releases) +and retains many of its essential features such as +the separation of the machine dependent and independent layers +(the ``pmap'' interface), +efficient memory utilization using copy-on-write +and other lazy-evaluation techniques, +and support for large, sparse address spaces. +It does not include the ``external pager'' interface instead using +a primitive internal pager interface. +The Mach virtual memory system call interface has been replaced with the +``mmap''-based interface described in the ``Berkeley Software +Architecture Manual'' (see UNIX Programmer's Manual, +Supplementary Documents, PSD:5). +The interface is similar to the interfaces shipped +by several commercial vendors such as Sun, USL, and Convex Computer Corp. +The integration of the new virtual memory is functionally complete, +but still has serious performance problems under heavy memory load. +The internal kernel interfaces have not yet been completed +and the memory pool and buffer cache have not been merged. +Some additional caveats: +.IP \(bu +Since the code is based on the 2.0 release of Mach, +bugs and misfeatures of the BSD version should not be considered +short-comings of the current Mach virtual memory system. +.IP \(bu +Because of the disjoint virtual memory (page) and IO (buffer) caches, +it is possible to see inconsistencies if using both the mmap and +read/write interfaces on the same file simultaneously. +.IP \(bu +Swap space is allocated on-demand rather than up front and no +allocation checks are performed so it is possible to over-commit +memory and eventually deadlock. +.IP \(bu +The semantics of the +.Xr vfork (2) +system call are slightly different. +The synchronization between parent and child is preserved, +but the memory sharing aspect is not. +In practice this has been enough for backward compatibility, +but newer code should just use +.Xr fork (2). +.Sh 4 "Networking additions and changes" +.PP +The ISO/OSI Networking consists of a kernel implementation of +transport class 4 (TP-4), +connectionless networking protocol (CLNP), +and 802.3-based link-level support (hardware-compatible with Ethernet\**). +.FS +Ethernet is a trademark of the Xerox Corporation. +.FE +We also include support for ISO Connection-Oriented Network Service, +X.25, TP-0. +The session and presentation layers are provided outside +the kernel using the ISO Development Environment by Marshall Rose, +that is available via anonymous FTP +(but is not included on the distribution tape). +Included in this development environment are file +transfer and management (FTAM), virtual terminals (VT), +a directory services implementation (X.500), +and miscellaneous other utilities. +.PP +Kernel support for the ISO OSI protocols is enabled with the ISO option +in the kernel configuration file. +The +.Xr iso (4) +manual page describes the protocols and addressing; +see also +.Xr clnp (4), +.Xr tp (4) +and +.Xr cltp (4). +The OSI equivalent to ARP is ESIS (End System to Intermediate System Routing +Protocol); running this protocol is mandatory, however one can manually add +translations for machines that do not participate by use of the +.Xr route (8) +command. +Additional information is provided in the manual page describing +.Xr esis (4). +.PP +The command +.Xr route (8) +has a new syntax and several new capabilities: +it can install routes with a specified destination and mask, +and can change route characteristics such as hop count, packet size +and window size. +.PP +Several important enhancements have been added to the TCP/IP +protocols including TCP header prediction and +serial line IP (SLIP) with header compression. +The routing implementation has been completely rewritten +to use a hierarchical routing tree with a mask per route +to support the arbitrary levels of routing found in the ISO protocols. +The routing table also stores and caches route characteristics +to speed the adaptation of the throughput and congestion avoidance +algorithms. +.PP +The format of the +.I sockaddr +structure (the structure used to describe a generic network address with an +address family and family-specific data) +has changed from previous releases, +as have the address family-specific versions of this structure. +The +.I sa_family +family field has been split into a length, +.Pn sa_len , +and a family, +.Pn sa_family . +System calls that pass a +.I sockaddr +structure into the kernel (e.g. +.Fn sendto +and +.Fn connect ) +have a separate parameter that specifies the +.I sockaddr +length, and thus it is not necessary to fill in the +.I sa_len +field for those system calls. +System calls that pass a +.I sockaddr +structure back from the kernel (e.g. +.Fn recvfrom +and +.Fn accept ) +receive a completely filled-in +.I sockaddr +structure, thus the length field is valid. +Because this would not work for old binaries, +the new library uses a different system call number. +Thus, most networking programs compiled under \*(4B are incompatible +with older systems. +.PP +Although this change is mostly source and binary compatible +with old programs, there are three exceptions. +Programs with statically initialized +.I sockaddr +structures +(usually the Internet form, a +.I sockaddr_in ) +are not compatible. +Generally, such programs should be changed to fill in the structure +at run time, as C allows no way to initialize a structure without +assuming the order and number of fields. +Also, programs with use structures to describe a network packet format +that contain embedded +.I sockaddr +structures also require change; a definition of an +.I osockaddr +structure is provided for this purpose. +Finally, programs that use the +.Sm SIOCGIFCONF +ioctl to get a complete list of interface addresses +need to check the +.I sa_len +field when iterating through the array of addresses returned, +as not all the structures returned have the same length +(this variance in length is nearly guaranteed by the presence of link-layer +address structures). +.Sh 4 "Additions and changes to filesystems" +.PP +The \*(4B distribution contains most of the interfaces +specified in the IEEE Std1003.1 system interface standard. +Filesystem additions include IEEE Std1003.1 FIFOs, +byte-range file locking, and saved user and group identifiers. +.PP +A new virtual filesystem interface has been added to the +kernel to support multiple filesystems. +In comparison with other interfaces, +the Berkeley interface has been structured for more efficient support +of filesystems that maintain state (such as the local filesystem). +The interface has been extended with support for stackable +filesystems done at UCLA. +These extensions allow for filesystems to be layered on top of each +other and allow new vnode operations to be added without requiring +changes to existing filesystem implementations. +For example, +the umap filesystem (see +.Xr mount_umap (8)) +is used to mount a sub-tree of an existing filesystem +that uses a different set of uids and gids than the local system. +Such a filesystem could be mounted from a remote site via NFS or it +could be a filesystem on removable media brought from some foreign +location that uses a different password file. +.PP +Other new filesystems that may be stacked include the loopback filesystem +.Xr mount_lofs (8), +the kernel filesystem +.Xr mount_kernfs (8), +and the portal filesystem +.Xr mount_portal (8). +.PP +The buffer cache in the kernel is now organized as a file block cache +rather than a device block cache. +As a consequence, cached blocks from a file +and from the corresponding block device would no longer be kept consistent. +The block device thus has little remaining value. +Three changes have been made for these reasons: +.IP 1) +block devices may not be opened while they are mounted, +and may not be mounted while open, so that the two versions of cached +file blocks cannot be created, +.IP 2) +filesystem checks of the root now use the raw device +to access the root filesystem, and +.IP 3) +the root filesystem is initially mounted read-only +so that nothing can be written back to disk during or after change to +the raw filesystem by +.Xr fsck . +.LP +The root filesystem may be made writable while in single-user mode +with the command: +.DS +.ft CW +mount \-uw / +.DE +The mount command has an option to update the flags on a mounted filesystem, +including the ability to upgrade a filesystem from read-only to read-write +or downgrade it from read-write to read-only. +.PP +In addition to the local ``fast filesystem'', +we have added an implementation of the network filesystem (NFS) +that fully interoperates with the NFS shipped by Sun and its licensees. +Because our NFS implementation was implemented +by Rick Macklem of the University of Guelph +using only the publicly available NFS specification, +it does not require a license from Sun to use in source or binary form. +By default it runs over UDP to be compatible with Sun's implementation. +However, it can be configured on a per-mount basis to run over TCP. +Using TCP allows it to be used quickly and efficiently through +gateways and over long-haul networks. +Using an extended protocol, it supports Leases to allow a limited +callback mechanism that greatly reduces the network traffic necessary +to maintain cache consistency between the server and its clients. +Its use will be familiar to users of other implementations of NFS. +See the manual pages +.Xr mount (8), +.Xr mountd (8), +.Xr fstab (5), +.Xr exports (5), +.Xr netgroup (5), +.Xr nfsd (8), +.Xr nfsiod (8), +and +.Xr nfssvc (8). +and the document ``The 4.4BSD NFS Implementation'' (SMM:6) +for further information. +The format of +.Pn /etc/fstab +has changed from previous \*(Bs releases +to a blank-separated format to allow colons in pathnames. +.PP +A new local filesystem, the log-structured filesystem (LFS), +has been added to the system. +It provides near disk-speed output and fast crash recovery. +This work is based, in part, on the LFS filesystem created +for the Sprite operating system at Berkeley. +While the kernel implementation is almost complete, +only some of the utilities to support the +filesystem have been written, +so we do not recommend it for production use. +See +.Xr newlfs (8), +.Xr mount_lfs (8) +and +.Xr lfs_cleanerd (8) +for more information. +For a in-depth description of the implementation and performance +characteristics of log-structured filesystems in general, +and this one in particular, see Dr. Margo Seltzer's doctoral thesis, +available from the University of California Computer Science Department. +.PP +We have also added a memory-based filesystem that runs in +pageable memory, allowing large temporary filesystems without +requiring dedicated physical memory. +.PP +The local ``fast filesystem'' has been enhanced to do +clustering that allows large pieces of files to be +allocated contiguously resulting in near doubling +of filesystem throughput. +The filesystem interface has been extended to allow +files and filesystems to grow to 2^63 bytes in size. +The quota system has been rewritten to support both +user and group quotas (simultaneously if desired). +Quota expiration is based on time rather than +the previous metric of number of logins over quota. +This change makes quotas more useful on fileservers +onto which users seldom login. +.PP +The system security has been greatly enhanced by the +addition of additional file flags that permit a file to be +marked as immutable or append only. +Once set, these flags can only be cleared by the super-user +when the system is running in insecure mode (normally, single-user). +In addition to the immutable and append-only flags, +the filesystem supports a new user-settable flag ``nodump''. +(File flags are set using the +.Xr chflags (1) +utility.) +When set on a file, +.Xr dump (8) +will omit the file from incremental backups +but retain them on full backups. +See the ``-h'' flag to +.Xr dump (8) +for details on how to change this default. +The ``nodump'' flag is usually set on core dumps, +system crash dumps, and object files generated by the compiler. +Note that the flag is not preserved when files are copied +so that installing an object file will cause it to be preserved. +.PP +The filesystem format used in \*(4B has several additions. +Directory entries have an additional field, +.Pn d_type , +that identifies the type of the entry +(normally found in the +.Pn st_mode +field of the +.Pn stat +structure). +This field is particularly useful for identifying +directories without the need to use +.Xr stat (2). +.PP +Short (less than sixty byte) symbolic links are now stored +in the inode itself rather than in a separate data block. +This saves disk space and makes access of symbolic links faster. +Short symbolic links are not given a special type, +so a user-level application is unaware of their special treatment. +Unlike pre-\*(4B systems, symbolic links do +not have an owner, group, access mode, times, etc. +Instead, these attributes are taken from the directory that contains the link. +The only attributes returned from an +.Xr lstat (2) +that refer to the symbolic link itself are the file type (S_IFLNK), +size, blocks, and link count (always 1). +.PP +An implementation of an auto-mounter daemon, +.Xr amd , +was contributed by Jan-Simon Pendry of the +Imperial College of Science, Technology & Medicine. +See the document ``AMD \- The 4.4BSD Automounter'' (SMM:13) +for further information. +.PP +The directory +.Pn /dev/fd +contains special files +.Pn 0 +through +.Pn 63 +that, when opened, duplicate the corresponding file descriptor. +The names +.Pn /dev/stdin , +.Pn /dev/stdout +and +.Pn /dev/stderr +refer to file descriptors 0, 1 and 2. +See +.Xr fd (4) +and +.Xr mount_fdesc (8) +for more information. +.Sh 4 "POSIX terminal driver changes" +.PP +The \*(4B system uses the IEEE P1003.1 (POSIX.1) terminal interface +rather than the previous \*(Bs terminal interface. +The terminal driver is similar to the System V terminal driver +with the addition of the necessary extensions to get the +functionality previously available in the \*(Ps terminal driver. +Both the old +.Xr ioctl +calls and old options to +.Xr stty (1) +are emulated. +This emulation is expected to be unavailable in many vendors releases, +so conversion to the new interface is encouraged. +.PP +\*(4B also adds the IEEE Std1003.1 job control interface, +that is similar to the \*(Ps job control interface, +but adds a security model that was missing in the +\*(Ps job control implementation. +A new system call, +.Fn setsid , +creates a job-control session consisting of a single process +group with one member, the caller, that becomes a session leader. +Only a session leader may acquire a controlling terminal. +This is done explicitly via a +.Sm TIOCSCTTY +.Fn ioctl +call, not implicitly by an +.Fn open +call. +The call fails if the terminal is in use. +Programs that allocate controlling terminals (or pseudo-terminals) +require change to work in this environment. +The versions of +.Xr xterm +provided in the X11R5 release includes the necessary changes. +New library routines are available for allocating and initializing +pseudo-terminals and other terminals as controlling terminal; see +.Pn /usr/src/lib/libutil/pty.c +and +.Pn /usr/src/lib/libutil/login_tty.c . +.PP +The POSIX job control model formalizes the previous conventions +used in setting up a process group. +Unfortunately, this requires that changes be made in a defined order +and with some synchronization that were not necessary in the past. +Older job control shells (csh, ksh) will generally not operate correctly +with the new system. +.PP +Most of the other kernel interfaces have been changed to correspond +with the POSIX.1 interface, although that work is not complete. +See the relevant manual pages and the IEEE POSIX standard. +.Sh 4 "Native operating system compatibility" +.PP +Both the HP300 and SPARC ports feature the ability to run binaries +built for the native operating system (HP-UX or SunOS) by emulating +their system calls. +Building an HP300 kernel with the HPUXCOMPAT and COMPAT_OHPUX options +or a SPARC kernel with the COMPAT_SUNOS option will enable this feature +(on by default in the generic kernel provided in the root filesystem image). +Though this native operating system compatibility was provided by the +developers as needed for their purposes and is by no means complete, +it is complete enough to run several non-trivial applications including +those that require HP-UX or SunOS shared libraries. +For example, the vendor supplied X11 server and windowing environment +can be used on both the HP300 and SPARC. +.PP +It is important to remember that merely copying over a native binary +and executing it (or executing it directly across NFS) does not imply +that it will run. +All but the most trivial of applications are likely to require access +to auxiliary files that do not exist under \*(4B (e.g. +.Pn /etc/ld.so.cache ) +or have a slightly different format (e.g. +.Pn /etc/passwd ). +However, by using system call tracing and +through creative use of symlinks, +many problems can be tracked down and corrected. +.PP +The DECstation port also has code for ULTRIX emulation +(kernel option ULTRIXCOMPAT, not compiled into the generic kernel) +but it was used primarily for initially bootstrapping the port and +has not been used since. +Hence, some work may be required to make it generally useful. +.Sh 3 "Changes to the utilities" +.PP +We have been tracking the IEEE Std1003.2 shell and utility work +and have included prototypes of many of the proposed utilities +based on draft 12 of the POSIX.2 Shell and Utilities document. +Because most of the traditional utilities have been replaced +with implementations conformant to the POSIX standards, +you should realize that the utility software may not be as stable, +reliable or well documented as in traditional Berkeley releases. +In particular, almost the entire manual suite has been rewritten to +reflect the POSIX defined interfaces, and in some instances +it does not correctly reflect the current state of the software. +It is also worth noting that, in rewriting this software, we have generally +been rewarded with significant performance improvements. +Most of the libraries and header files have been converted +to be compliant with ANSI C. +The shipped compiler (gcc) is a superset of ANSI C, +but supports traditional C as a command-line option. +The system libraries and utilities all compile +with either ANSI or traditional C. +.Sh 4 "Make and Makefiles" +.PP +This release uses a completely new version of the +.Xr make +program derived from the +.Xr pmake +program developed by the Sprite project at Berkeley. +It supports existing makefiles, although certain incorrect makefiles +may fail. +The makefiles for the \*(4B sources make extensive use of the new +facilities, especially conditionals and file inclusion, and are thus +completely incompatible with older versions of +.Xr make +(but nearly all the makefiles are now trivial!). +The standard include files for +.Xr make +are in +.Pn /usr/share/mk . +There is a +.Pn bsd.README +file in +.Pn /usr/src/share/mk . +.PP +Another global change supported by the new +.Xr make +is designed to allow multiple architectures to share a copy of the sources. +If a subdirectory named +.Pn obj +is present in the current directory, +.Xr make +descends into that directory and creates all object and other files there. +We use this by building a directory hierarchy in +.Pn /var/obj +that parallels +.Pn /usr/src . +We then create the +.Pn obj +subdirectories in +.Pn /usr/src +as symbolic links to the corresponding directories in +.Pn /var/obj . +(This step is automated. +The command ``make obj'' in +.Pn /usr/src +builds both the local symlink and the shadow directory, +using +.Pn /usr/obj , +that may be a symbolic link, as the root of the shadow tree. +The use of +.Pn /usr/obj +is for historic reasons only, and the system make configuration files in +.Pn /usr/share/mk +can trivially be modified to use +.Pn /var/obj +instead.) +We have one +.Pn /var/obj +hierarchy on the local system, and another on each +system that shares the source filesystem. +All the sources in +.Pn /usr/src +except for +.Pn /usr/src/contrib +and portions of +.Pn /usr/src/old +have been converted to use the new make and +.Pn obj +subdirectories; +this change allows compilation for multiple +architectures from the same source tree +(that may be mounted read-only). +.Sh 4 "Kerberos" +.PP +The Kerberos authentication server from MIT (version 4) +is included in this release. +See +.Xr kerberos (1) +for a general, if MIT-specific, introduction. +If it is configured, +.Xr login (1), +.Xr passwd (1), +.Xr rlogin (1) +and +.Xr rsh (1) +will all begin to use it automatically. +The file +.Pn /etc/kerberosIV/README +describes the configuration. +Each system needs the file +.Pn /etc/kerberosIV/krb.conf +to set its realm and local servers, +and a private key stored in +.Pn /etc/kerberosIV/srvtab +(see +.Xr ext_srvtab (8)). +The Kerberos server should be set up on a single, physically secure, +server machine. +Users and hosts may be added to the server database manually with +.Xr kdb_edit (8), +or users on authorized hosts can add themselves and a Kerberos +password after verification of their ``local'' (passwd-file) password +using the +.Xr register (1) +program. +.PP +Note that by default the password-changing program +.Xr passwd (1) +changes the Kerberos password, that must exist. +The +.Li \-l +option to +.Xr passwd (1) +changes the ``local'' password if one exists. +.PP +Note that Version 5 of Kerberos will be released soon; +Version 4 should probably be replaced at that time. +.Sh 4 "Timezone support" +.PP +The timezone conversion code in the C library uses data files installed in +.Pn /usr/share/zoneinfo +to convert from ``GMT'' to various timezones. The data file for the default +timezone for the system should be copied to +.Pn /etc/localtime . +Other timezones can be selected by setting the TZ environment variable. +.PP +The data files initially installed in +.Pn /usr/share/zoneinfo +include corrections for leap seconds since the beginning of 1970. +Thus, they assume that the +kernel will increment the time at a constant rate during a leap second; +that is, time just keeps on ticking. The conversion routines will then +name a leap second 23:59:60. For purists, this effectively means that +the kernel maintains TAI (International Atomic Time) rather than UTC +(Coordinated Universal Time, aka GMT). +.PP +For systems that run current NTP (Network Time Protocol) implementations +or that wish to conform to the letter of the POSIX.1 law, it is possible +to rebuild the timezone data files so that leap seconds are not counted. +(NTP causes the time to jump over a leap second, and POSIX effectively +requires the clock to be reset by hand when a leap second occurs. +In this mode, the kernel effectively runs UTC rather than TAI.) +.PP +The data files without leap second information +are constructed from the source directory, +.Pn /usr/src/share/zoneinfo . +Change the variable REDO in Makefile +from ``right'' to ``posix'', and then do +.DS +make obj (if necessary) +make +make install +.DE +.PP +You will then need to copy the correct default zone file to +.Pn /etc/localtime , +as the old one would still have used leap seconds, and because the Makefile +installs a default +.Pn /etc/localtime +each time ``make install'' is done. +.PP +It is possible to install both sets of timezone data files. This results +in subdirectories +.Pn /usr/share/zoneinfo/right +and +.Pn /usr/share/zoneinfo/posix . +Each contain a complete set of zone files. +See +.Pn /usr/src/share/zoneinfo/Makefile +for details. +.Sh 4 "Additions and changes to the libraries" +.PP +Notable additions to the libraries include functions to traverse a +filesystem hierarchy, database interfaces to btree and hashing functions, +a new, faster implementation of stdio and a radix and merge sort +functions. +.PP +The +.Xr fts (3) +functions will do either physical or logical traversal of +a file hierarchy as well as handle essentially infinite depth +filesystems and filesystems with cycles. +All the utilities in \*(4B which traverse file hierarchies +have been converted to use +.Xr fts (3). +The conversion has always resulted in a significant performance +gain, often of four or five to one in system time. +.PP +The +.Xr dbopen (3) +functions are intended to be a family of database access methods. +Currently, they consist of +.Xr hash (3), +an extensible, dynamic hashing scheme, +.Xr btree (3), +a sorted, balanced tree structure (B+tree's), and +.Xr recno (3), +a flat-file interface for fixed or variable length records +referenced by logical record number. +Each of the access methods stores associated key/data pairs and +uses the same record oriented interface for access. +.PP +The +.Xr qsort (3) +function has been rewritten for additional performance. +In addition, three new types of sorting functions, +.Xr heapsort (3), +.Xr mergesort (3) +and +.Xr radixsort (3) +have been added to the system. +The +.Xr mergesort +function is optimized for data with pre-existing order, +in which case it usually significantly outperforms +.Xr qsort . +The +.Xr radixsort (3) +functions are variants of most-significant-byte radix sorting. +They take time linear to the number of bytes to be +sorted, usually significantly outperforming +.Xr qsort +on data that can be sorted in this fashion. +An implementation of the POSIX 1003.2 standard +.Xr sort (1), +based on +.Xr radixsort , +is included in +.Pn /usr/src/contrib/sort . +.PP +Some additional comments about the \*(4B C library: +.IP \(bu +The floating point support in the C library has been replaced +and is now accurate. +.IP \(bu +The C functions specified by both ANSI C, POSIX 1003.1 and +1003.2 are now part of the C library. +This includes support for file name matching, shell globbing +and both basic and extended regular expressions. +.IP \(bu +ANSI C multibyte and wide character support has been integrated. +The rune functionality from the Bell Labs' Plan 9 system is provided +as well. +.IP \(bu +The +.Xr termcap (3) +functions have been generalized and replaced with a general +purpose interface named +.Xr getcap (3). +.IP \(bu +The +.Xr stdio (3) +routines have been replaced, and are usually much faster. +In addition, the +.Xr funopen (3) +interface permits applications to provide their own I/O stream +function support. +.PP +The +.Xr curses (3) +library has been largely rewritten. +Important additional features include support for scrolling and +.Xr termios (3). +.PP +An application front-end editing library, named libedit, has been +added to the system. +.PP +A superset implementation of the SunOS kernel memory interface library, +libkvm, has been integrated into the system. +.PP +.Sh 4 "Additions and changes to other utilities" +.PP +There are many new utilities, offering many new capabilities, +in \*(4B. +Skimming through the section 1 and section 8 manual pages is sure +to be useful. +The additions to the utility suite include greatly enhanced versions of +programs that display system status information, implementations of +various traditional tools described in the IEEE Std1003.2 standard, +new tools not previous available on Berkeley UNIX systems, +and many others. +Also, with only a very few exceptions, all the utilities from +\*(Ps that included proprietary source code have been replaced, +and their \*(4B counterparts are freely redistributable. +Normally, this replacement resulted in significant performance +improvements and the increase of the limits imposed on data by +the utility as well. +.PP +A summary of specific additions and changes are as follows: +.TS +lfC l. +amd An auto-mounter implementation. +ar Replacement of the historic archive format with a new one. +awk Replaced by gawk; see /usr/src/old/awk for the historic version. +bdes Utility implementing DES modes of operation described in FIPS PUB 81. +calendar Addition of an interface for system calendars. +cap_mkdb Utility for building hashed versions of termcap style databases. +cc Replacement of pcc with gcc suite. +chflags A utility for setting the per-file user and system flags. +chfn An editor based replacement for changing user information. +chpass An editor based replacement for changing user information. +chsh An editor based replacement for changing user information. +cksum The POSIX 1003.2 checksum utility; compatible with sum. +column A columnar text formatting utility. +cp POSIX 1003.2 compatible, able to copy special files. +csh Freely redistributable and 8-bit clean. +date User specified formats added. +dd New EBCDIC conversion tables, major performance improvements. +dev_mkdb Hashed interface to devices. +dm Dungeon master. +find Several new options and primaries, major performance improvements. +fstat Utility displaying information on files open on the system. +ftpd Connection logging added. +hexdump A binary dump utility, superseding od. +id The POSIX 1003.2 user identification utility. +inetd Tcpmux added. +jot A text formatting utility. +kdump A system-call tracing facility. +ktrace A system-call tracing facility. +kvm_mkdb Hashed interface to the kernel name list. +lam A text formatting utility. +lex A new, freely redistributable, significantly faster version. +locate A database of the system files, by name, constructed weekly. +logname The POSIX 1003.2 user identification utility. +mail.local New local mail delivery agent, replacing mail. +make Replaced with a new, more powerful make, supporting include files. +man Added support for man page location configuration. +mkdep A new utility for generating make dependency lists. +mkfifo The POSIX 1003.2 FIFO creation utility. +mtree A new utility for mapping file hierarchies to a file. +nfsstat An NFS statistics utility. +nvi A freely redistributable replacement for the ex/vi editors. +pax The POSIX 1003.2 replacement for cpio and tar. +printf The POSIX 1003.2 replacement for echo. +roff Replaced by groff; see /usr/src/old/roff for the historic versions. +rs New utility for text formatting. +shar An archive building utility. +sysctl MIB-style interface to system state. +tcopy Fast tape-to-tape copying and verification. +touch Time and file reference specifications. +tput The POSIX 1003.2 terminal display utility. +tr Addition of character classes. +uname The POSIX 1003.2 system identification utility. +vis A filter for converting and displaying non-printable characters. +xargs The POSIX 1003.2 argument list constructor utility. +yacc A new, freely redistributable, significantly faster version. +.TE +.PP +The new versions of +.Xr lex (1) +(``flex'') and +.Xr yacc (1) +(``zoo'') should be installed early on if attempting to +cross-compile \*(4B on another system. +Note that the new +.Xr lex +program is not completely backward compatible with historic versions of +.Xr lex , +although it is believed that all documented features are supported. +.PP +The +.Xr find +utility has two new options that are important to be aware of if you +intend to use NFS. +The ``fstype'' and ``prune'' options can be used together to prevent +find from crossing NFS mount points. +See +.Pn /etc/daily +for an example of their use. +.Sh 2 "Hints on converting from \*(Ps to \*(4B" +.PP +This section summarizes changes between +\*(Ps and \*(4B that are likely to +cause difficulty in doing the conversion. +It does not include changes in the network; +see section 5 for information on setting up the network. +.PP +Since the stat st_size field is now 64-bits instead of 32, +doing something like: +.DS +.ft CW +foo(st.st_size); +.DE +and then (improperly) defining foo with an ``int'' or ``long'' parameter: +.DS +.ft CW +foo(size) + int size; +{ + ... +} +.DE +will fail miserably (well, it might work on a little endian machine). +This problem showed up in +.Xr emacs (1) +as well as several other programs. +A related problem is improperly casting (or failing to cast) +the second argument to +.Xr lseek (2), +.Xr truncate (2), +or +.Xr ftruncate (2) +ala: +.DS +.ft CW +lseek(fd, (long)off, 0); +.DE +or +.DS +.ft CW +lseek(fd, 0, 0); +.DE +The best solution is to include +.Pn <unistd.h> +which has prototypes that catch these types of errors. +.PP +Determining the ``namelen'' parameter for a +.Xr connect (2) +call on a unix domain socket should use the ``SUN_LEN'' macro from +.Pn <sys/un.h> . +One old way that was used: +.DS +.ft CW +addrlen = strlen(unaddr.sun_path) + sizeof(unaddr.sun_family); +.DE +no longer works as there is an additional +.Pn sun_len +field. +.PP +The kernel's limit on the number of open files has been +increased from 20 to 64. +It is now possible to change this limit almost arbitrarily. +The standard I/O library +autoconfigures to the kernel limit. +Note that file (``_iob'') entries may be allocated by +.Xr malloc +from +.Xr fopen ; +this allocation has been known to cause problems with programs +that use their own memory allocators. +Memory allocation does not occur until after 20 files have been opened +by the standard I/O library. +.PP +.Xr Select +can be used with more than 32 descriptors +by using arrays of \fBint\fPs for the bit fields rather than single \fBint\fPs. +Programs that used +.Xr getdtablesize +as their first argument to +.Xr select +will no longer work correctly. +Usually the program can be modified to correctly specify the number +of bits in an \fBint\fP. +Alternatively the program can be modified to use an array of \fBint\fPs. +There are a set of macros available in +.Pn <sys/types.h> +to simplify this. +See +.Xr select (2). +.PP +Old core files will not be intelligible by the current debuggers +because of numerous changes to the user structure +and because the kernel stack has been enlarged. +The +.Xr a.out +header that was in the user structure is no longer present. +Locally-written debuggers that try to check the magic number +will need to be changed. +.PP +Files may not be deleted from directories having the ``sticky'' (ISVTX) bit +set in their modes +except by the owner of the file or of the directory, or by the superuser. +This is primarily to protect users' files in publicly-writable directories +such as +.Pn /tmp +and +.Pn /var/tmp . +All publicly-writable directories should have their ``sticky'' bits set +with ``chmod +t.'' +.PP +The following two sections contain additional notes about +changes in \*(4B that affect the installation of local files; +be sure to read them as well. diff --git a/share/doc/smm/01.setup/4.t b/share/doc/smm/01.setup/4.t new file mode 100644 index 0000000..fee3fc2 --- /dev/null +++ b/share/doc/smm/01.setup/4.t @@ -0,0 +1,713 @@ +.\" Copyright (c) 1980, 1986, 1988 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)4.t 8.1 (Berkeley) 7/29/93 +.\" +.ds LH "Installing/Operating \*(4B +.ds CF \*(Dy +.ds RH "System setup +.Sh 1 "System setup" +.PP +This section describes procedures used to set up a \*(4B UNIX system. +These procedures are used when a system is first installed +or when the system configuration changes. Procedures for normal +system operation are described in the next section. +.Sh 2 "Kernel configuration" +.PP +This section briefly describes the layout of the kernel code and +how files for devices are made. +For a full discussion of configuring +and building system images, consult the document ``Building +4.3BSD UNIX Systems with Config'' (SMM:2). +.Sh 3 "Kernel organization" +.PP +As distributed, the kernel source is in a +separate tar image. The source may be physically +located anywhere within any filesystem so long as +a symbolic link to the location is created for the file +.Pn /sys +(many files in +.Pn /usr/include +are normally symbolic links relative to +.Pn /sys ). +In further discussions of the system source all path names +will be given relative to +.Pn /sys . +.LP +The kernel is made up of several large generic parts: +.TS +l l l. +sys main kernel header files +kern kernel functions broken down as follows + init system startup, syscall dispatching, entry points + kern scheduling, descriptor handling and generic I/O + sys process management, signals + tty terminal handling and job control + vfs filesystem management + uipc interprocess communication (sockets) + subr miscellaneous support routines +vm virtual memory management +ufs local filesystems broken down as follows + ufs common local filesystem routines + ffs fast filesystem + lfs log-based filesystem + mfs memory based filesystem +nfs Sun-compatible network filesystem +miscfs miscellaneous filesystems broken down as follows + deadfs where rejected vnodes go to die + fdesc access to per-process file descriptors + fifofs IEEE Std1003.1 FIFOs + kernfs filesystem access to kernel data structures + lofs loopback filesystem + nullfs another loopback filesystem + portal associate processes with filesystem locations + specfs device special files + umapfs provide alternate uid/gid mappings +dev generic device drivers (SCSI, vnode, concatenated disk) +.TE +.LP +The networking code is organized by protocol +.TS +l l. +net routing and generic interface drivers +netinet Internet protocols (TCP, UDP, IP, etc) +netiso ISO protocols (TP-4, CLNP, CLTP, etc) +netns Xerox network systems protocols (IDP, SPP, etc) +netx25 CCITT X.25 protocols (X.25 Packet Level, HDLC/LAPB) +.TE +.LP +A separate subdirectory is provided for each machine architecture +.TS +l l. +hp300 HP 9000/300 series of Motorola 68000-based machines +hp code common to both HP 68k and (non-existent) PA-RISC ports +i386 Intel 386/486-based PC machines +luna68k Omron 68000-based workstations +news3400 Sony News MIPS-based workstations +pmax Digital 3100/5000 MIPS-based workstations +sparc Sun Microsystems SPARCstation 1, 1+, and 2 +tahoe (deprecated) CCI Power 6-series machines +vax (deprecated) Digital VAX machines +.TE +.LP +Each machine directory is subdivided by function; +for example the hp300 directory contains +.TS +l l. +include exported machine-dependent header files +hp300 machine-dependent support code and private header files +dev device drivers +conf configuration files +stand machine-dependent standalone code +.TE +.LP +Other kernel related directories +.TS +l l. +compile area to compile kernels +conf machine-independent configuration files +stand machine-independent standalone code +.TE +.Sh 3 "Devices and device drivers" +.PP +Devices supported by UNIX are implemented in the kernel +by drivers whose source is kept in +.Pn /sys/<architecture>/dev . +These drivers are loaded +into the system when included in a cpu specific configuration file +kept in the conf directory. Devices are accessed through special +files in the filesystem, made by the +.Xr mknod (8) +program and normally kept in the +.Pn /dev +directory. +For all the devices supported by the distribution system, the +files in +.Pn /dev +are created by the +.Pn /dev/MAKEDEV +shell script. +.PP +Determine the set of devices that you have and create a new +.Pn /dev +directory by running the MAKEDEV script. +First create a new directory +.Pn /newdev , +copy MAKEDEV into it, edit the file MAKEDEV.local +to provide an entry for local needs, +and run it to generate a +.Pn /newdev directory. +For instance, +.DS +\fB#\fP \fIcd /\fP +\fB#\fP \fImkdir newdev\fP +\fB#\fP \fIcp dev/MAKEDEV newdev/MAKEDEV\fP +\fB#\fP \fIcd newdev\fP +\fB#\fP \fIMAKEDEV \*(Dk0 pt0 std LOCAL\fP +.DE +Note the ``std'' argument causes standard devices such as +.Pn /dev/console , +the machine console, to be created. +.PP +You can then do +.DS +\fB#\fP \fIcd /\fP +\fB#\fP \fImv dev olddev ; mv newdev dev\fP +\fB#\fP \fIsync\fP +.DE +to install the new device directory. +.Sh 3 "Building new system images" +.PP +The kernel configuration of each UNIX system is described by +a single configuration file, stored in the +.Pn /sys/<architecture>/conf +directory. +To learn about the format of this file and the procedure used +to build system images, +start by reading ``Building 4.3BSD UNIX Systems with Config'' (SMM:2), +look at the manual pages in section 4 +of the UNIX manual for the devices you have, +and look at the sample configuration files in the +.Pn /sys/<architecture>/conf +directory. +.PP +The configured system image +.Pn vmunix +should be copied to the root, and then booted to try it out. +It is best to name it +.Pn /newvmunix +so as not to destroy the working system until you are sure it does work: +.DS +\fB#\fP \fIcp vmunix /newvmunix\fP +\fB#\fP \fIsync\fP +.DE +It is also a good idea to keep the previous system around under some other +name. In particular, we recommend that you save the generic distribution +version of the system permanently as +.Pn /genvmunix +for use in emergencies. +To boot the new version of the system you should follow the +bootstrap procedures outlined in section 6.1. +After having booted and tested the new system, it should be installed as +.Pn /vmunix +before going into multiuser operation. +A systematic scheme for numbering and saving old versions +of the system may be useful. +.Sh 2 "Configuring terminals" +.PP +If UNIX is to support simultaneous +access from directly-connected terminals other than the console, +the file +.Pn /etc/ttys +(see +.Xr ttys (5)) +must be edited. +.PP +To add a new terminal device, be sure the device is configured into the system +and that the special files for the device have been made by +.Pn /dev/MAKEDEV . +Then, enable the appropriate lines of +.Pn /etc/ttys +by setting the ``status'' +field to \fBon\fP (or add new lines). +Note that lines in +.Pn /etc/ttys +are one-for-one with entries in the file of current users +(see +.Pn /var/run/utmp ), +and therefore it is best to make changes +while running in single-user mode +and to add all the entries for a new device at once. +.PP +Each line in the +.Pn /etc/ttys +file is broken into four tab separated +fields (comments are shown by a `#' character and extend to +the end of the line). For each terminal line the four fields +are: +the device (without a leading +.Pn /dev ), +the program +.Pn /sbin/init +should startup to service the line +(or \fBnone\fP if the line is to be left alone), +the terminal type (found in +.Pn /usr/share/misc/termcap ), +and optional status information describing if the terminal is +enabled or not and if it is ``secure'' (i.e. the super user should +be allowed to login on the line). +If the console is marked as ``insecure'', +then the root password is required to bring the machine up single-user. +All fields are character strings +with entries requiring embedded white space enclosed in double +quotes. +Thus a newly added terminal +.Pn /dev/tty00 +could be added as +.DS +tty00 "/usr/libexec/getty std.9600" vt100 on secure # mike's office +.DE +The std.9600 parameter provided to +.Pn /usr/libexec/getty +is used in searching the file +.Pn /etc/gettytab ; +it specifies a terminal's characteristics (such as baud rate). +To make custom terminal types, consult +.Xr gettytab (5) +before modifying +.Pn /etc/gettytab . +.PP +Dialup terminals should be wired so that carrier is asserted only when the +phone line is dialed up. +For non-dialup terminals, from which modem control is not available, +you must wire back the signals so that +the carrier appears to always be present. For further details, +find your terminal driver in section 4 of the manual. +.PP +For network terminals (i.e. pseudo terminals), no program should +be started up on the lines. Thus, the normal entry in +.Pn /etc/ttys +would look like +.DS +ttyp0 none network +.DE +(Note, the fourth field is not needed here.) +.PP +When the system is running multi-user, all terminals that are listed in +.Pn /etc/ttys +as \fBon\fP have their line enabled. +If, during normal operations, you wish +to disable a terminal line, you can edit the file +.Pn /etc/ttys +to change the terminal's status to \fBoff\fP and +then send a hangup signal to the +.Xr init +process, by doing +.DS +\fB#\fP \fIkill \-1 1\fP +.DE +Terminals can similarly be enabled by changing the status field +from \fBoff\fP to \fBon\fP and sending a hangup signal to +.Xr init . +.PP +Note that if a special file is inaccessible when +.Xr init +tries to create a process for it, +.Xr init +will log a message to the +system error logging process (see +.Xr syslogd (8)) +and try to reopen the terminal every minute, reprinting the warning +message every 10 minutes. Messages of this sort are normally +printed on the console, though other actions may occur depending +on the configuration information found in +.Pn /etc/syslog.conf . +.PP +Finally note that you should change the names of any dialup +terminals to ttyd? +where ? is in [0-9a-zA-Z], as some programs use this property of the +names to determine if a terminal is a dialup. +Shell commands to do this should be put in the +.Pn /dev/MAKEDEV.local +script. +.PP +While it is possible to use truly arbitrary strings for terminal names, +the accounting and noticeably the +.Xr ps (1) +command make good use of the convention that tty names +(by default, and also after dialups are named as suggested above) +are distinct in the last 2 characters. +Change this and you may be sorry later, as the heuristic +.Xr ps (1) +uses based on these conventions will then break down and +.Xr ps +will run MUCH slower. +.Sh 2 "Adding users" +.PP +The procedure for adding a new user is described in +.Xr adduser (8). +You should add accounts for the initial user community, giving +each a directory and a password, and putting users who will wish +to share software in the same groups. +.PP +Several guest accounts have been provided on the distribution +system; these accounts are for people at Berkeley, +Bell Laboratories, and others +who have done major work on UNIX in the past. You can delete these accounts, +or leave them on the system if you expect that these people would have +occasion to login as guests on your system. +.Sh 2 "Site tailoring" +.PP +All programs that require the site's name, or some similar +characteristic, obtain the information through system calls +or from files located in +.Pn /etc . +Aside from parts of the +system related to the network, to tailor the system to your +site you must simply select a site name, then edit the file +.DS +/etc/netstart +.DE +The first lines in +.Pn /etc/netstart +use a variable to set the hostname, +.DS +hostname=\fImysitename\fP +/bin/hostname $hostname +.DE +to define the value returned by the +.Xr gethostname (2) +system call. If you are running the name server, your site +name should be your fully qualified domain name. Programs such as +.Xr getty (8), +.Xr mail (1), +.Xr wall (1), +and +.Xr uucp (1) +use this system call so that the binary images are site +independent. +.PP +You will also need to edit +.Pn /etc/netstart +to do the network interface initialization using +.Xr ifconfig (8). +If you are not sure how to do this, see sections 5.1, 5.2, and 5.3. +If you are not running a routing daemon and have +more than one Ethernet in your environment +you will need to set up a default route; +see section 5.4 for details. +Before bringing your system up multiuser, +you should ensure that the networking is properly configured. +The network is started by running +.Pn /etc/netstart . +Once started, you should test connectivity using +.Xr ping (8). +You should first test connectivity to yourself, +then another host on your Ethernet, +and finally a host on another Ethernet. +The +.Xr netstat (8) +program can be used to inspect and debug +your routes; see section 5.4. +.Sh 2 "Setting up the line printer system" +.PP +The line printer system consists of at least +the following files and commands: +.DS +.TS +l l. +/usr/bin/lpq spooling queue examination program +/usr/bin/lprm program to delete jobs from a queue +/usr/bin/lpr program to enter a job in a printer queue +/etc/printcap printer configuration and capability database +/usr/sbin/lpd line printer daemon, scans spooling queues +/usr/sbin/lpc line printer control program +/etc/hosts.lpd list of host allowed to use the printers +.TE +.DE +.PP +The file +.Pn /etc/printcap +is a master database describing line +printers directly attached to a machine and, also, printers +accessible across a network. The manual page +.Xr printcap (5) +describes the format of this database and also +shows the default values for such things as the directory +in which spooling is performed. The line printer system handles +multiple printers, multiple spooling queues, local and remote +printers, and also printers attached via serial lines that require +line initialization such as the baud rate. Raster output devices +such as a Varian or Versatec, and laser printers such as an Imagen, +are also supported by the line printer system. +.PP +Remote spooling via the network is handled with two spooling +queues, one on the local machine and one on the remote machine. +When a remote printer job is started with +.Xr lpr , +the job is queued locally and a daemon process created to oversee the +transfer of the job to the remote machine. If the destination +machine is unreachable, the job will remain queued until it is +possible to transfer the files to the spooling queue on the +remote machine. The +.Xr lpq +program shows the contents of spool +queues on both the local and remote machines. +.PP +To configure your line printers, consult the printcap manual page +and the accompanying document, ``4.3BSD Line Printer Spooler Manual'' (SMM:7). +A call to the +.Xr lpd +program should be present in +.Pn /etc/rc . +.Sh 2 "Setting up the mail system" +.PP +The mail system consists of the following commands: +.DS +.TS +l l. +/usr/bin/mail UCB mail program, described in \fImail\fP\|(1) +/usr/sbin/sendmail mail routing program +/var/spool/mail mail spooling directory +/var/spool/secretmail secure mail directory +/usr/bin/xsend secure mail sender +/usr/bin/xget secure mail receiver +/etc/aliases mail forwarding information +/usr/bin/newaliases command to rebuild binary forwarding database +/usr/bin/biff mail notification enabler +/usr/libexec/comsat mail notification daemon +.TE +.DE +Mail is normally sent and received using the +.Xr mail (1) +command (found in +.Pn /usr/bin/mail ), +which provides a front-end to edit the messages sent +and received, and passes the messages to +.Xr sendmail (8) +for routing. +The routing algorithm uses knowledge of the network name syntax, +aliasing and forwarding information, and network topology, as +defined in the configuration file +.Pn /usr/lib/sendmail.cf , +to process each piece of mail. +Local mail is delivered by giving it to the program +.Pn /usr/libexec/mail.local +that adds it to the mailboxes in the directory +.Pn /var/spool/mail/<username> , +using a locking protocol to avoid problems with simultaneous updates. +After the mail is delivered, the local mail delivery daemon +.Pn /usr/libexec/comsat +is notified, which in turn notifies users who have issued a +``\fIbiff\fP y'' command that mail has arrived. +.PP +Mail queued in the directory +.Pn /var/spool/mail +is normally readable only by the recipient. +To send mail that is secure against perusal +(except by a code-breaker) you should use the secret mail facility, +which encrypts the mail. +.PP +To set up the mail facility you should read the instructions in the +file READ_ME in the directory +.Pn /usr/src/usr.sbin/sendmail +and then adjust the necessary configuration files. +You should also set up the file +.Pn /etc/aliases +for your installation, creating mail groups as appropriate. +For more informations see +``Sendmail Installation and Operation Guide'' (SMM:8) and +``Sendmail \- An Internetwork Mail Router'' (SMM:9). +.Sh 3 "Setting up a UUCP connection" +.LP +The version of +.Xr uucp +included in \*(4B has the following features: +.IP \(bu 3 +support for many auto call units and dialers +in addition to the DEC DN11, +.IP \(bu 3 +breakup of the spooling area into multiple subdirectories, +.IP \(bu 3 +addition of an +.Pn L.cmds +file to control the set +of commands that may be executed by a remote site, +.IP \(bu 3 +enhanced ``expect-send'' sequence capabilities when +logging in to a remote site, +.IP \(bu 3 +new commands to be used in polling sites and +obtaining snap shots of +.Xr uucp +activity, +.IP \(bu 3 +additional protocols for different communication media. +.LP +This section gives a brief overview of +.Xr uucp +and points out the most important steps in its installation. +.PP +To connect two UNIX machines with a +.Xr uucp +network link using modems, +one site must have an automatic call unit +and the other must have a dialup port. +It is better if both sites have both. +.PP +You should first read the paper in the UNIX System Manager's Manual: +``Uucp Implementation Description'' (SMM:14). +It describes in detail the file formats and conventions, +and will give you a little context. +In addition, +the document ``setup.tblms'', +located in the directory +.Pn /usr/src/usr.bin/uucp/UUAIDS , +may be of use in tailoring the software to your needs. +.PP +The +.Xr uucp +support is located in three major directories: +.Pn /usr/bin, +.Pn /usr/lib/uucp, +and +.Pn /var/spool/uucp . +User commands are kept in +.Pn /usr/bin, +operational commands in +.Pn /usr/lib/uucp , +and +.Pn /var/spool/uucp +is used as a spooling area. +The commands in +.Pn /usr/bin +are: +.DS +.TS +l l. +/usr/bin/uucp file-copy command +/usr/bin/uux remote execution command +/usr/bin/uusend binary file transfer using mail +/usr/bin/uuencode binary file encoder (for \fIuusend\fP) +/usr/bin/uudecode binary file decoder (for \fIuusend\fP) +/usr/bin/uulog scans session log files +/usr/bin/uusnap gives a snap-shot of \fIuucp\fP activity +/usr/bin/uupoll polls remote system until an answer is received +/usr/bin/uuname prints a list of known uucp hosts +/usr/bin/uuq gives information about the queue +.TE +.DE +The important files and commands in +.Pn /usr/lib/uucp +are: +.DS +.TS +l l. +/usr/lib/uucp/L-devices list of dialers and hard-wired lines +/usr/lib/uucp/L-dialcodes dialcode abbreviations +/usr/lib/uucp/L.aliases hostname aliases +/usr/lib/uucp/L.cmds commands remote sites may execute +/usr/lib/uucp/L.sys systems to communicate with, how to connect, and when +/usr/lib/uucp/SEQF sequence numbering control file +/usr/lib/uucp/USERFILE remote site pathname access specifications +/usr/lib/uucp/uucico \fIuucp\fP protocol daemon +/usr/lib/uucp/uuclean cleans up garbage files in spool area +/usr/lib/uucp/uuxqt \fIuucp\fP remote execution server +.TE +.DE +while the spooling area contains the following important files and directories: +.DS +.TS +l l. +/var/spool/uucp/C. directory for command, ``C.'' files +/var/spool/uucp/D. directory for data, ``D.'', files +/var/spool/uucp/X. directory for command execution, ``X.'', files +/var/spool/uucp/D.\fImachine\fP directory for local ``D.'' files +/var/spool/uucp/D.\fImachine\fPX directory for local ``X.'' files +/var/spool/uucp/TM. directory for temporary, ``TM.'', files +/var/spool/uucp/LOGFILE log file of \fIuucp\fP activity +/var/spool/uucp/SYSLOG log file of \fIuucp\fP file transfers +.TE +.DE +.PP +To install +.Xr uucp +on your system, +start by selecting a site name +(shorter than 14 characters). +A +.Xr uucp +account must be created in the password file and a password set up. +Then, +create the appropriate spooling directories with mode 755 +and owned by user +.Xr uucp , +group \fIdaemon\fP. +.PP +If you have an auto-call unit, +the L.sys, L-dialcodes, and L-devices files should be created. +The L.sys file should contain +the phone numbers and login sequences +required to establish a connection with a +.Xr uucp +daemon on another machine. +For example, our L.sys file looks something like: +.DS +adiron Any ACU 1200 out0123456789- ogin-EOT-ogin uucp +cbosg Never Slave 300 +cbosgd Never Slave 300 +chico Never Slave 1200 out2010123456 +.DE +The first field is the name of a site, +the second shows when the machine may be called, +the third field specifies how the host is connected +(through an ACU, a hard-wired line, etc.), +then comes the phone number to use in connecting through an auto-call unit, +and finally a login sequence. +The phone number +may contain common abbreviations that are defined in the L-dialcodes file. +The device specification should refer to devices +specified in the L-devices file. +Listing only ACU causes the +.Xr uucp +daemon, +.Xr uucico , +to search for any available auto-call unit in L-devices. +Our L-dialcodes file is of the form: +.DS +ucb 2 +out 9% +.DE +while our L-devices file is: +.DS +ACU cul0 unused 1200 ventel +.DE +Refer to the README file in the +.Xr uucp +source directory for more information about installation. +.PP +As +.Xr uucp +operates it creates (and removes) many small +files in the directories underneath +.Pn /var/spool/uucp . +Sometimes files are left undeleted; +these are most easily purged with the +.Xr uuclean +program. +The log files can grow without bound unless trimmed back; +.Xr uulog +maintains these files. +Many useful aids in maintaining your +.Xr uucp +installation are included in a subdirectory UUAIDS beneath +.Pn /usr/src/usr.bin/uucp . +Peruse this directory and read the ``setup'' instructions also located there. diff --git a/share/doc/smm/01.setup/5.t b/share/doc/smm/01.setup/5.t new file mode 100644 index 0000000..10b86dd --- /dev/null +++ b/share/doc/smm/01.setup/5.t @@ -0,0 +1,586 @@ +.\" Copyright (c) 1980, 1986, 1988, 1993 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)5.t 8.1 (Berkeley) 7/27/93 +.\" +.ds lq `` +.ds rq '' +.ds LH "Installing/Operating \*(4B +.ds RH Network setup +.ds CF \*(Dy +.Sh 1 "Network setup" +.PP +\*(4B provides support for the standard Internet +protocols IP, ICMP, TCP, and UDP. These protocols may be used +on top of a variety of hardware devices ranging from +serial lines to local area network controllers +for the Ethernet. Network services are split between the +kernel (communication protocols) and user programs (user +services such as TELNET and FTP). This section describes +how to configure your system to use the Internet networking support. +\*(4B also supports the Xerox Network Systems (NS) protocols. +IDP and SPP are implemented in the kernel, +and other protocols such as Courier run at the user level. +\*(4B provides some support for the ISO OSI protocols CLNP +TP4, and ESIS. User level process +complete the application protocols such as X.400 and X.500. +.Sh 2 "System configuration" +.PP +To configure the kernel to include the Internet communication +protocols, define the INET option. +Xerox NS support is enabled with the NS option. +ISO OSI support is enabled with the ISO option. +In either case, include the pseudo-devices +``pty'', and ``loop'' in your machine's configuration +file. +The ``pty'' pseudo-device forces the pseudo terminal device driver +to be configured into the system, see +.Xr pty (4), +while the ``loop'' pseudo-device forces inclusion of the software loopback +interface driver. +The loop driver is used in network testing +and also by the error logging system. +.PP +If you are planning to use the Internet network facilities on a 10Mb/s +Ethernet, the pseudo-device ``ether'' should also be included +in the configuration; this forces inclusion of the Address Resolution +Protocol module used in mapping between 48-bit Ethernet +and 32-bit Internet addresses. +.PP +Before configuring the appropriate networking hardware, you should +consult the manual pages in section 4 of the Programmer's Manual +selecting the appropriate interfaces for your architecture. +.PP +All network interface drivers including the loopback interface, +require that their host address(es) be defined at boot time. +This is done with +.Xr ifconfig (8) +commands included in the +.Pn /etc/netstart +file. +Interfaces that are able to dynamically deduce the host +part of an address may check that the host part of the address is correct. +The manual page for each network interface +describes the method used to establish a host's address. +.Xr Ifconfig (8) +can also be used to set options for the interface at boot time. +Options are set independently for each interface, and +apply to all packets sent using that interface. +Alternatively, translations for such hosts may be set in advance +or ``published'' by a \*(4B host by use of the +.Xr arp (8) +command. +Note that the use of trailer link-level is now negotiated between \*(4B hosts +using ARP, +and it is thus no longer necessary to disable the use of trailers +with +.Xr ifconfig . +.PP +The OSI equivalent to ARP is ESIS (End System to Intermediate System Routing +Protocol); running this protocol is mandatory, however one can manually add +translations for machines that do not participate by use of the +.Xr route (8) +command. +Additional information is provided in the manual page describing +.Xr ESIS (4). +.PP +To use the pseudo terminals just configured, device +entries must be created in the +.Pn /dev +directory. To create 32 +pseudo terminals (plenty, unless you have a heavy network load) +execute the following commands. +.DS +\fB#\fP \fIcd /dev\fP +\fB#\fP \fIMAKEDEV pty0 pty1\fP +.DE +More pseudo terminals may be made by specifying +.Pn pty2 , +.Pn pty3 , +etc. The kernel normally includes support for 32 pseudo terminals +unless the configuration file specifies a different number. +Each pseudo terminal really consists of two files in +.Pn /dev : +a master and a slave. The master pseudo terminal file is named +.Pn /dev/ptyp? , +while the slave side is +.Pn /dev/ttyp? . +Pseudo terminals are also used by several programs not related to the network. +In addition to creating the pseudo terminals, +be sure to install them in the +.Pn /etc/ttys +file (with a `none' in the second column so no +.Xr getty +is started). +.Sh 2 "Local subnets" +.PP +In \*(4B the Internet support +includes the notion of ``subnets''. This is a mechanism +by which multiple local networks may appears as a single Internet +network to off-site hosts. Subnetworks are useful because +they allow a site to hide their local topology, requiring only a single +route in external gateways; +it also means that local network numbers may be locally administered. +The standard describing this change in Internet addressing is RFC-950. +.PP +To set up local subnets one must first decide how the available +address space (the Internet ``host part'' of the 32-bit address) +is to be partitioned. +Sites with a class A network +number have a 24-bit host address space with which to work, sites with a +class B network number have a 16-bit host address space, while sites with +a class C network number have an 8-bit host address space\**. +.FS +If you are unfamiliar with the Internet addressing structure, consult +``Address Mappings'', Internet RFC-796, J. Postel; available from +the Internet Network Information Center at SRI. +.FE +To define local subnets you must steal some bits +from the local host address space for use in extending the network +portion of the Internet address. This reinterpretation of Internet +addresses is done only for local networks; i.e. it is not visible +to hosts off-site. For example, if your site has a class B network +number, hosts on this network have an Internet address that contains +the network number, 16 bits, and the host number, another +16 bits. To define 254 local subnets, each +possessing at most 255 hosts, 8 bits may be taken from the local part. +(The use of subnets 0 and all-1's, 255 in this example, is discouraged +to avoid confusion about broadcast addresses.) +These new network +numbers are then constructed by concatenating the original 16-bit network +number with the extra 8 bits containing the local subnet number. +.PP +The existence of local subnets is communicated to the system at the time a +network interface is configured with the +.I netmask +option to the +.Xr ifconfig +program. A ``network mask'' is specified to define the +portion of the Internet address that is to be considered the network part +for that network. +This mask normally contains the bits corresponding to the standard +network part as well as the portion of the local part +that has been assigned to subnets. +If no mask is specified when the address is set, +it will be set according to the class of the network. +For example, at Berkeley (class B network 128.32) 8 bits +of the local part have been reserved for defining subnets; +consequently the +.Pn /etc/netstart +file contains lines of the form +.DS +.ft CW +/sbin/ifconfig le0 netmask 0xffffff00 128.32.1.7 +.DE +This specifies that for interface ``le0'', the upper 24 bits of +the Internet address should be used in calculating network numbers +(netmask 0xffffff00), and the interface's Internet address is +``128.32.1.7'' (host 7 on network 128.32.1). Hosts \fIm\fP on +sub-network \fIn\fP of this network would then have addresses of +the form ``128.32.\fIn\fP.\fIm\fP''; for example, host +99 on network 129 would have an address ``128.32.129.99''. +For hosts with multiple interfaces, the network mask should +be set for each interface, +although in practice only the mask of the first interface on each network +is really used. +.Sh 2 "Internet broadcast addresses" +.PP +The address defined as the broadcast address for Internet networks +according to RFC-919 is the address with a host part of all 1's. +The address used by 4.2BSD was the address with a host part of 0. +\*(4B uses the standard broadcast address (all 1's) by default, +but allows the broadcast address to be set (with +.Xr ifconfig ) +for each interface. +This allows networks consisting of both 4.2BSD, \*(Ps and \*(4B hosts +to coexist while the upgrade process proceeds. +In the presence of subnets, the broadcast address uses the subnet field +as for normal host addresses, with the remaining host part set to 1's +(or 0's, on a network that has not yet been converted). +\*(4B hosts recognize and accept packets +sent to the logical-network broadcast address as well as those sent +to the subnet broadcast address, and when using an all-1's broadcast, +also recognize and receive packets sent to host 0 as a broadcast. +.Sh 2 "Routing" +.PP +If your environment allows access to networks not directly +attached to your host you will need to set up routing information +to allow packets to be properly routed. Two schemes are +supported by the system. The first scheme +employs a routing table management daemon. +Optimally, you should use the routing daemon +.Xr gated +available from Cornell university. +We use it on our systems and it works well, +especially for multi-homed hosts using Serial Line IP (SLIP). +Unfortunately, we were not able to obtain permission to +include it on \*(4B. +.PP +If you do not wish to or cannot obtain +.Xr gated , +the distribution does include +.Xr routed (8) +to maintain the system routing tables. The routing daemon +uses a variant of the Xerox Routing Information Protocol +to maintain up to date routing tables in a cluster of local +area networks. By using the +.Pn /etc/gateways +file, the routing daemon can also be used to initialize static routes +to distant networks (see the next section for further discussion). +When the routing daemon is started up +(usually from +.Pn /etc/rc ) +it reads +.Pn /etc/gateways +if it exists and installs those routes defined there, +then broadcasts on each local network +to which the host is attached to find other instances of the routing +daemon. If any responses are received, the routing daemons +cooperate in maintaining a globally consistent view of routing +in the local environment. This view can be extended to include +remote sites also running the routing daemon by setting up suitable +entries in +.Pn /etc/gateways ; +consult +.Xr routed (8) +for a more thorough discussion. +.PP +The second approach is to define a default or wildcard +route to a smart +gateway and depend on the gateway to provide ICMP routing +redirect information to dynamically create a routing data +base. This is done by adding an entry of the form +.DS +.ft CW +/sbin/route add default \fIsmart-gateway\fP 1 +.DE +to +.Pn /etc/netstart ; +see +.Xr route (8) +for more information. The default route +will be used by the system as a ``last resort'' +in routing packets to their destination. Assuming the gateway +to which packets are directed is able to generate the proper +routing redirect messages, the system will then add routing +table entries based on the information supplied. This approach +has certain advantages over the routing daemon, but is +unsuitable in an environment where there are only bridges (i.e. +pseudo gateways that, for instance, do not generate routing +redirect messages). Further, if the +smart gateway goes down there is no alternative, save manual +alteration of the routing table entry, to maintaining service. +.PP +The system always listens, and processes, routing redirect +information, so it is possible to combine both of the above +facilities. For example, the routing table management process +might be used to maintain up to date information about routes +to geographically local networks, while employing the wildcard +routing techniques for ``distant'' networks. The +.Xr netstat (1) +program may be used to display routing table contents as well +as various routing oriented statistics. For example, +.DS +\fB#\fP \fInetstat \-r\fP +.DE +will display the contents of the routing tables, while +.DS +\fB#\fP \fInetstat \-r \-s\fP +.DE +will show the number of routing table entries dynamically +created as a result of routing redirect messages, etc. +.Sh 2 "Use of \*(4B machines as gateways" +.PP +Several changes have been made in \*(4B in the area of gateway support +(or packet forwarding, if one prefers). +A new configuration option, GATEWAY, is used when configuring +a machine to be used as a gateway. +This option increases the size of the routing hash tables in the kernel. +Unless configured with that option, +hosts with only a single non-loopback interface never attempt +to forward packets or to respond with ICMP error messages to misdirected +packets. +This change reduces the problems that may occur when different hosts +on a network disagree on the network number or broadcast address. +Another change is that \*(4B machines that forward packets back through +the same interface on which they arrived +will send ICMP redirects to the source host if it is on the same network. +This improves the interaction of \*(4B gateways with hosts that configure +their routes via default gateways and redirects. +The generation of redirects may be disabled with the configuration option +IPSENDREDIRECTS=0 or while the system is running by using the command: +.DS +.ft CW +sysctl -w net.inet.ip.redirect=0 +.DE +in environments where it may cause difficulties. +.Sh 2 "Network databases" +.PP +Several data files are used by the network library routines +and server programs. Most of these files are host independent +and updated only rarely. +.br +.ne 1i +.TS +lfC l l. +File Manual reference Use +_ +/etc/hosts \fIhosts\fP\|(5) local host names +/etc/networks \fInetworks\fP\|(5) network names +/etc/services \fIservices\fP\|(5) list of known services +/etc/protocols \fIprotocols\fP\|(5) protocol names +/etc/hosts.equiv \fIrshd\fP\|(8) list of ``trusted'' hosts +/etc/netstart \fIrc\fP\|(8) command script for initializing network +/etc/rc \fIrc\fP\|(8) command script for starting standard servers +/etc/rc.local \fIrc\fP\|(8) command script for starting local servers +/etc/ftpusers \fIftpd\fP\|(8) list of ``unwelcome'' ftp users +/etc/hosts.lpd \fIlpd\fP\|(8) list of hosts allowed to access printers +/etc/inetd.conf \fIinetd\fP\|(8) list of servers started by \fIinetd\fP +.TE +The files distributed are set up for Internet hosts. +Local networks and hosts should be added to describe the local +configuration; the Berkeley entries may serve as examples +(see also the section on +.Pn /etc/hosts ). +Network numbers will have to be chosen for each Ethernet. +For sites connected to the Internet, +the normal channels should be used for allocation of network +numbers (contact hostmaster@SRI-NIC.ARPA). +For other sites, +these could be chosen more or less arbitrarily, +but it is generally better to request official numbers +to avoid conversion if a connection to the Internet (or others on the Internet) +is ever established. +.Sh 3 "Network servers" +.PP +Most network servers are automatically started up at boot time +by the command file +.Pn /etc/rc +or by the Internet daemon (see below). +These include the following: +.TS +lfC l l. +Program Server Started by +_ +/usr/sbin/syslogd error logging server \f(CW/etc/rc\fP +/usr/sbin/named Internet name server \f(CW/etc/rc\fP +/sbin/routed routing table management daemon \f(CW/etc/rc\fP +/usr/sbin/rwhod system status daemon \f(CW/etc/rc\fP +/usr/sbin/timed time synchronization daemon \f(CW/etc/rc\fP +/usr/sbin/sendmail SMTP server \f(CW/etc/rc\fP +/usr/libexec/rshd shell server inetd +/usr/libexec/rexecd exec server inetd +/usr/libexec/rlogind login server inetd +/usr/libexec/telnetd TELNET server inetd +/usr/libexec/ftpd FTP server inetd +/usr/libexec/fingerd Finger server inetd +/usr/libexec/tftpd TFTP server inetd +.TE +Consult the manual pages and accompanying documentation (particularly +for named and sendmail) for details about their operation. +.PP +The use of +.Xr routed +and +.Xr rwhod +is controlled by shell +variables set in +.Pn /etc/netstart . +By default, +.Xr routed +is used, but +.Xr rwhod +is not; they are enabled by setting the variables \fIroutedflags\fP and +.Xr rwhod +to strings other than ``NO.'' +The value of \fIroutedflags\fP provides host-specific options to +.Xr routed . +For example, +.DS +.ft CW +routedflags=-q +rwhod=NO +.DE +would run +.Xr "routed -q" +and would not run +.Xr rwhod . +.PP +To have other network servers started as well, +commands of the following sort should be placed in the site-dependent file +.Pn /etc/rc.local . +.DS +.ft CW +if [ -f /usr/sbin/timed ]; then + /usr/sbin/timed & echo -n ' timed' >/dev/console +f\&i +.DE +.Sh 3 "Internet daemon" +.PP +In \*(4B most of the servers for user-visible services are started up by a +``super server'', the Internet daemon. The Internet +daemon, +.Pn /usr/sbin/inetd , +acts as a master server for +programs specified in its configuration file, +.Pn /etc/inetd.conf , +listening for service requests for these servers, and starting +up the appropriate program whenever a request is received. +The configuration file contains lines containing a service +name (as found in +.Pn /etc/services ), +the type of socket the +server expects (e.g. stream or dgram), the protocol to be +used with the socket (as found in +.Pn /etc/protocols ), +whether to wait for each server to complete before starting up another, +the user name by which the server should run, the server +program's name, and at most five arguments to pass to the +server program. +Some trivial services are implemented internally in +.Xr inetd , +and their servers are listed as ``internal.'' +For example, an entry for the file +transfer protocol server would appear as +.DS +.ft CW +ftp stream tcp nowait root /usr/libexec/ftpd ftpd +.DE +Consult +.Xr inetd (8) +for more detail on the format of the configuration file +and the operation of the Internet daemon. +.Sh 3 "The \f(CW/etc/hosts.equiv\fP file" +.PP +The remote login and shell servers use an +authentication scheme based on trusted hosts. The +.Pn hosts.equiv +file contains a list of hosts that are considered trusted +and, under a single administrative control. When a user +contacts a remote login or shell server requesting service, +the client process passes the user's name and the official +name of the host on which the client is located. In the simple +case, if the host's name is located in +.Pn hosts.equiv +and the user has an account on the server's machine, then service +is rendered (i.e. the user is allowed to log in, or the command +is executed). Users may expand this ``equivalence'' of +machines by installing a +.Pn \&.rhosts +file in their login directory. +The root login is handled specially, bypassing the +.Pn hosts.equiv +file, and using only the +.Pn /.rhosts +file. +.PP +Thus, to create a class of equivalent machines, the +.Pn hosts.equiv +file should contain the \fIofficial\fP names for those machines. +If you are running the name server, you may omit the domain part +of the host name for machines in your local domain. +For example, four machines on our local +network are considered trusted, so the +.Pn hosts.equiv +file is of the form: +.DS +.ft CW +vangogh.CS.Berkeley.EDU +picasso.CS.Berkeley.EDU +okeeffe.CS.Berkeley.EDU +.DE +.Sh 3 "The \f(CW/etc/ftpusers\fP file" +.PP +The FTP server included in the system provides support for an +anonymous FTP account. Because of the inherent security problems +with such a facility you should read this section carefully if +you consider providing such a service. +.PP +An anonymous account is enabled by creating a user +.Xr ftp . +When a client uses the anonymous account a +.Xr chroot (2) +system call is performed by the server to restrict the client +from moving outside that part of the filesystem where the +user ftp home directory is located. Because a +.Xr chroot +call is used, certain programs and files used by the server +process must be placed in the ftp home directory. +Further, one must be +sure that all directories and executable images are unwritable. +The following directory setup is recommended. The +use of the +.Xr awk +commands to copy the +.Pn /etc/passwd +and +.Pn /etc/group +files are \fBSTRONGLY\fP recommended. +.DS +\fB#\fP \fIcd ~ftp\fP +\fB#\fP \fIchmod 555 .; chown ftp .; chgrp ftp .\fP +\fB#\fP \fImkdir bin etc pub\fP +\fB#\fP \fIchown root bin etc\fP +\fB#\fP \fIchmod 555 bin etc\fP +\fB#\fP \fIchown ftp pub\fP +\fB#\fP \fIchmod 777 pub\fP +\fB#\fP \fIcd bin\fP +\fB#\fP \fIcp /bin/sh /bin/ls .\fP +\fB#\fP \fIchmod 111 sh ls\fP +\fB#\fP \fIcd ../etc\fP +\fB#\fP \fIawk -F: '{$2="*";print$1":"$2":"$3":"$4":"$5":"$6":"}' < /etc/passwd > passwd\fP +\fB#\fP \fIawk -F: '{$2="*";print$1":"$2":"}' < /etc/group > group\fP +\fB#\fP \fIchmod 444 passwd group\fP +.DE +When local users wish to place files in the anonymous +area, they must be placed in a subdirectory. In the +setup here, the directory +.Pn ~ftp/pub +is used. +.PP +Aside from the problems of directory modes and such, +the ftp server may provide a loophole for interlopers +if certain user accounts are allowed. +The file +.Pn /etc/ftpusers +is checked on each connection. +If the requested user name is located in the file, the +request for service is denied. This file normally has +the following names on our systems. +.DS +uucp +root +.DE +Accounts without passwords need not be listed in this file as the ftp +server will refuse service to these users. +Accounts with nonstandard shells (any not listed in +.Pn /etc/shells ) +will also be denied access via ftp. diff --git a/share/doc/smm/01.setup/6.t b/share/doc/smm/01.setup/6.t new file mode 100644 index 0000000..d043474 --- /dev/null +++ b/share/doc/smm/01.setup/6.t @@ -0,0 +1,663 @@ +.\" Copyright (c) 1980, 1986, 1988, 1993 The Regents of the University of California. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)6.t 8.1 (Berkeley) 7/27/93 +.\" +.ds LH "Installing/Operating \*(4B +.ds CF \*(Dy +.Sh 1 "System operation" +.PP +This section describes procedures used to operate a \*(4B UNIX system. +Procedures described here are used periodically, to reboot the system, +analyze error messages from devices, do disk backups, monitor +system performance, recompile system software and control local changes. +.Sh 2 "Bootstrap and shutdown procedures" +.PP +In a normal reboot, the system checks the disks and comes up multi-user +without intervention at the console. +Such a reboot +can be stopped (after it prints the date) with a ^C (interrupt). +This will leave the system in single-user mode, with only the console +terminal active. +(If the console has been marked ``insecure'' in +.Pn /etc/ttys +you must enter the root password to bring the machine to single-user mode.) +It is also possible to allow the filesystem checks to complete +and then to return to single-user mode by signaling +.Xr fsck (8) +with a QUIT signal (^\|\e). +.PP +To bring the system up to a multi-user configuration from the single-user +status, +all you have to do is hit ^D on the console. The system +will then execute +.Pn /etc/rc , +a multi-user restart script (and +.Pn /etc/rc.local ), +and come up on the terminals listed as +active in the file +.Pn /etc/ttys . +See +.Xr init (8) +and +.Xr ttys (5) for more details. +Note, however, that this does not cause a filesystem check to be done. +Unless the system was taken down cleanly, you should run +``fsck \-p'' or force a reboot with +.Xr reboot (8) +to have the disks checked. +.PP +To take the system down to a single user state you can use +.DS +\fB#\fP \fIkill 1\fP +.DE +or use the +.Xr shutdown (8) +command (which is much more polite, if there are other users logged in) +when you are running multi-user. +Either command will kill all processes and give you a shell on the console, +as if you had just booted. Filesystems remain mounted after the +system is taken single-user. If you wish to come up multi-user again, you +should do this by: +.DS +\fB#\fP \fIcd /\fP +\fB#\fP \fI/sbin/umount -a\fP +\fB#\fP \fI^D\fP +.DE +.PP +Each system shutdown, crash, processor halt and reboot +is recorded in the system log +with its cause. +.Sh 2 "Device errors and diagnostics" +.PP +When serious errors occur on peripherals or in the system, the system +prints a warning diagnostic on the console. +These messages are collected +by the system error logging process +.Xr syslogd (8) +and written into a system error log file +.Pn /var/log/messages . +Less serious errors are sent directly to +.Xr syslogd , +which may log them on the console. +The error priorities that are logged and the locations to which they are logged +are controlled by +.Pn /etc/syslog.conf . +See +.Xr syslogd (8) +for further details. +.PP +Error messages printed by the devices in the system are described with the +drivers for the devices in section 4 of the programmer's manual. +If errors occur suggesting hardware problems, you should contact +your hardware support group or field service. It is a good idea to +examine the error log file regularly +(e.g. with the command \fItail \-r /var/log/messages\fP). +.Sh 2 "Filesystem checks, backups, and disaster recovery" +.PP +Periodically (say every week or so in the absence of any problems) +and always (usually automatically) after a crash, +all the filesystems should be checked for consistency +by +.Xr fsck (1). +The procedures of +.Xr reboot (8) +should be used to get the system to a state where a filesystem +check can be done manually or automatically. +.PP +Dumping of the filesystems should be done regularly, +since once the system is going it is easy to +become complacent. +Complete and incremental dumps are easily done with +.Xr dump (8). +You should arrange to do a towers-of-hanoi dump sequence; we tune +ours so that almost all files are dumped on two tapes and kept for at +least a week in most every case. We take full dumps every month (and keep +these indefinitely). +Operators can execute ``dump w'' at login that will tell them what needs +to be dumped +(based on the +.Pn /etc/fstab +information). +Be sure to create a group +.B operator +in the file +.Pn /etc/group +so that dump can notify logged-in operators when it needs help. +.PP +More precisely, we have three sets of dump tapes: 10 daily tapes, +5 weekly sets of 2 tapes, and fresh sets of three tapes monthly. +We do daily dumps circularly on the daily tapes with sequence +`3 2 5 4 7 6 9 8 9 9 9 ...'. +Each weekly is a level 1 and the daily dump sequence level +restarts after each weekly dump. +Full dumps are level 0 and the daily sequence restarts after each full dump +also. +.PP +Thus a typical dump sequence would be: +.br +.ne 6 +.TS +center; +c c c c c +n n n l l. +tape name level number date opr size +_ +FULL 0 Nov 24, 1992 operator 137K +D1 3 Nov 28, 1992 operator 29K +D2 2 Nov 29, 1992 operator 34K +D3 5 Nov 30, 1992 operator 19K +D4 4 Dec 1, 1992 operator 22K +W1 1 Dec 2, 1992 operator 40K +D5 3 Dec 4, 1992 operator 15K +D6 2 Dec 5, 1992 operator 25K +D7 5 Dec 6, 1992 operator 15K +D8 4 Dec 7, 1992 operator 19K +W2 1 Dec 9, 1992 operator 118K +D9 3 Dec 11, 1992 operator 15K +D10 2 Dec 12, 1992 operator 26K +D1 5 Dec 15, 1992 operator 14K +W3 1 Dec 17, 1992 operator 71K +D2 3 Dec 18, 1992 operator 13K +FULL 0 Dec 22, 1992 operator 135K +.TE +We do weekly dumps often enough that daily dumps always fit on one tape. +.PP +Dumping of files by name is best done by +.Xr tar (1) +but the amount of data that can be moved in this way is limited +to a single tape. +Finally if there are enough drives entire +disks can be copied with +.Xr dd (1) +using the raw special files and an appropriate +blocking factor; the number of sectors per track is usually +a good value to use, consult +.Pn /etc/disktab . +.PP +It is desirable that full dumps of the root filesystem be +made regularly. +This is especially true when only one disk is available. +Then, if the +root filesystem is damaged by a hardware or software failure, you +can rebuild a workable disk doing a restore in the +same way that the initial root filesystem was created. +.PP +Exhaustion of user-file space is certain to occur +now and then; disk quotas may be imposed, or if you +prefer a less fascist approach, try using the programs +.Xr du (1), +.Xr df (1), +and +.Xr quot (8), +combined with threatening +messages of the day, and personal letters. +.Sh 2 "Moving filesystem data" +.PP +If you have the resources, +the best way to move a filesystem +is to dump it to a spare disk partition, or magtape, using +.Xr dump (8), +use +.Xr newfs (8) +to create the new filesystem, +and restore the filesystem using +.Xr restore (8). +Filesystems may also be moved by piping the output of +.Xr dump +to +.Xr restore . +The +.Xr restore +program uses an ``in-place'' algorithm that +allows filesystem dumps to be restored without concern for the +original size of the filesystem. Further, portions of a +filesystem may be selectively restored using a method similar +to the tape archive program. +.PP +If you have to merge a filesystem into another, existing one, +the best bet is to use +.Xr tar (1). +If you must shrink a filesystem, the best bet is to dump +the original and restore it onto the new filesystem. +If you +are playing with the root filesystem and only have one drive, +the procedure is more complicated. +If the only drive is a Winchester disk, this procedure may not be used +without overwriting the existing root or another partition. +What you do is the following: +.IP 1. +GET A SECOND PACK, OR USE ANOTHER DISK DRIVE!!!! +.IP 2. +Dump the root filesystem to tape using +.Xr dump (8). +.IP 3. +Bring the system down. +.IP 4. +Mount the new pack in the correct disk drive, if +using removable media. +.IP 5. +Load the distribution tape and install the new +root filesystem as you did when first installing the system. +Boot normally +using the newly created disk filesystem. +.PP +Note that if you change the disk partition tables or add new disk +drivers they should also be added to the standalone system in +.Pn /sys/<architecture>/stand , +and the default disk partition tables in +.Pn /etc/disktab +should be modified. +.Sh 2 "Monitoring system performance" +.PP +The +.Xr systat +program provided with the system is designed to be an aid to monitoring +systemwide activity. The default ``pigs'' mode shows a dynamic ``ps''. +By running in the ``vmstat'' mode +when the system is active you can judge the system activity in several +dimensions: job distribution, virtual memory load, paging and swapping +activity, device interrupts, and disk and cpu utilization. +Ideally, there should be few blocked (b) jobs, +there should be little paging or swapping activity, there should +be available bandwidth on the disk devices (most single arms peak +out at 20-30 tps in practice), and the user cpu utilization (us) should +be high (above 50%). +.PP +If the system is busy, then the count of active jobs may be large, +and several of these jobs may often be blocked (b). If the virtual +memory is active, then the paging demon will be running (sr will +be non-zero). It is healthy for the paging demon to free pages when +the virtual memory gets active; it is triggered by the amount of free +memory dropping below a threshold and increases its pace as free memory +goes to zero. +.PP +If you run in the ``vmstat'' mode +when the system is busy, you can find +imbalances by noting abnormal job distributions. If many +processes are blocked (b), then the disk subsystem +is overloaded or imbalanced. If you have several non-dma +devices or open teletype lines that are ``ringing'', or user programs +that are doing high-speed non-buffered input/output, then the system +time may go high (60-70% or higher). +It is often possible to pin down the cause of high system time by +looking to see if there is excessive context switching (cs), interrupt +activity (in) and per-device interrupt counts, +or system call activity (sy). Cumulatively on one of +our large machines we average about 60-200 context switches and interrupts +per second and about 50-500 system calls per second. +.PP +If the system is heavily loaded, or if you have little memory +for your load (2M is little in most any case), then the system +may be forced to swap. This is likely to be accompanied by a noticeable +reduction in system performance and pregnant pauses when interactive +jobs such as editors swap out. +If you expect to be in a memory-poor environment +for an extended period you might consider administratively +limiting system load. +.Sh 2 "Recompiling and reinstalling system software" +.PP +It is easy to regenerate either the entire system or a single utility, +and it is a good idea to try rebuilding pieces of the system to build +confidence in the procedures. +.LP +In general, there are six well-known targets supported by +all the makefiles on the system: +.IP all 9 +This entry is the default target, the same as if no target is specified. +This target builds the kernel, binary or library, as well as its +associated manual pages. +This target \fBdoes not\fP build the dependency files. +Some of the utilities require that a \fImake depend\fP be done before +a \fImake all\fP can succeed. +.IP depend +Build the include file dependency file, ``.depend'', which is +read by +.Xr make . +See +.Xr mkdep (1) +for further details. +.IP install +Install the kernel, binary or library, as well as its associated +manual pages. +See +.Xr install (1) +for further details. +.IP clean +Remove the kernel, binary or library, as well as any object files +created when building it. +.IP cleandir +The same as clean, except that the dependency files and formatted +manual pages are removed as well. +.IP obj +Build a shadow directory structure in the area referenced by +.Pn /usr/obj +and create a symbolic link in the current source directory to +referenced it, named ``obj''. +Once this shadow structure has been created, all the files created by +.Xr make +will live in the shadow structure, and +.Pn /usr/src +may be mounted read-only by multiple machines. +Doing a \fImake obj\fP in +.Pn /usr/src +will build the shadow directory structure for everything on the +system except for the contributed, old, and kernel software. +.PP +The system consists of three major parts: +the kernel itself, found in +.Pn /usr/src/sys , +the libraries , found in +.Pn /usr/src/lib , +and the user programs (the rest of +.Pn /usr/src ). +.PP +Deprecated software, found in +.Pn /usr/src/old , +often has old style makefiles; +some of it does not compile under \*(4B at all. +.PP +Contributed software, found in +.Pn /usr/src/contrib , +usually does not support the ``cleandir'', ``depend'', or ``obj'' targets. +.PP +The kernel does not support the ``obj'' shadow structure. +All kernels are compiled in subdirectories of +.Pn /usr/src/sys/compile +which is usually abbreviated as +.Pn /sys/compile . +If you want to mount your source tree read-only, +.Pn /usr/src/sys/compile +will have to be on a separate filesystem from +.Pn /usr/src . +Separation from +.Pn /usr/src +can be done by making +.Pn /usr/src/sys/compile +a symbolic link that references +.Pn /usr/obj/sys/compile . +If it is a symbolic link, the \fIS\fP variable in the kernel +Makefile must be changed from +.Pn \&../.. +to the absolute pathname needed to locate the kernel sources, usually +.Pn /usr/src/sys . +The symbolic link created by +.Xr config (8) +for +.Pn machine +must also be manually changed to an absolute pathname. +Finally, the +.Pn /usr/src/sys/libkern/obj +directory must be located in +.Pn /usr/obj/sys/libkern . +.PP +Each of the standard utilities and libraries may be built and +installed by changing directories into the correct location and +doing: +.DS +\fB#\fP \fImake\fP +\fB#\fP \fImake install\fP +.DE +Note, if system include files have changed between compiles, +.Xr make +will not do the correct dependency checks if the dependency +files have not been built using the ``depend'' target. +.PP +The entire library and utility suite for the system may be recompiled +from scratch by changing directory to +.Pn /usr/src +and doing: +.DS +\fB#\fP \fImake build\fP +.DE +This target installs the system include files, cleans the source +tree, builds and installs the libraries, and builds and installs +the system utilities. +.PP +To recompile a specific program, first determine where the binary +resides with the +.Xr whereis (1) +command, then change to the corresponding source directory and build +it with the Makefile in the directory. +For instance, to recompile ``passwd'', +all one has to do is: +.DS +\fB#\fP \fIwhereis passwd\fP +\fB/usr/bin/passwd\fP +\fB#\fP \fIcd /usr/src/usr.bin/passwd\fP +\fB#\fP \fImake\fP +\fB#\fP \fImake install\fP +.DE +this will compile and install the +.Xr passwd +utility. +.PP +If you wish to recompile and install all programs into a particular +target area you can override the default path prefix by doing: +.DS +\fB#\fP \fImake\fP +\fB#\fP \fImake DESTDIR=\fPpathname \fIinstall\fP +.DE +Similarly, the mode, owner, group, and other characteristics of +the installed object can be modified by changing other default +make variables. +See +.Xr make (1), +.Pn /usr/src/share/mk/bsd.README , +and the ``.mk'' scripts in the +.Pn /usr/share/mk +directory for more information. +.PP +If you modify the C library or system include files, to change a +system call for example, and want to rebuild and install everything, +you have to be a little careful. +You must ensure that the include files are installed before anything +is compiled, and that the libraries are installed before the remainder +of the source, otherwise the loaded images will not contain the new +routine from the library. +If include files have been modified, the following commands should +be done first: +.DS +\fB#\fP \fIcd /usr/src/include\fP +\fB#\fP \fImake install\fP +.DE +Then, if, for example, C library files have been modified, the +following commands should be executed: +.DS +\fB#\fP \fIcd /usr/src/lib/libc\fP +\fB#\fP \fImake depend\fP +\fB#\fP \fImake\fP +\fB#\fP \fImake install\fP +\fB#\fP \fIcd /usr/src\fP +\fB#\fP \fImake depend\fP +\fB#\fP \fImake\fP +\fB#\fP \fImake install\fP +.DE +Alternatively, the \fImake build\fP command described above will +accomplish the same tasks. +This takes several hours on a reasonably configured machine. +.Sh 2 "Making local modifications" +.PP +The source for locally written commands is normally stored in +.Pn /usr/src/local , +and their binaries are kept in +.Pn /usr/local/bin . +This isolation of local binaries allows +.Pn /usr/bin , +and +.Pn /bin +to correspond to the distribution tape (and to the manuals that +people can buy). +People using local commands should be made aware that they are not +in the base manual. +Manual pages for local commands should be installed in +.Pn /usr/local/man/cat[1-8]. +The +.Xr man (1) +command automatically finds manual pages placed in +/usr/local/man/cat[1-8] to encourage this practice (see +.Xr man.conf (5)). +.Sh 2 "Accounting" +.PP +UNIX optionally records two kinds of accounting information: +connect time accounting and process resource accounting. The connect +time accounting information is stored in the file +.Pn /var/log/wtmp , +which is summarized by the program +.Xr ac (8). +The process time accounting information is stored in the file +.Pn /var/account/acct +after it is enabled by +.Xr accton (8), +and is analyzed and summarized by the program +.Xr sa (8). +.PP +If you need to recharge for computing time, you can develop +procedures based on the information provided by these commands. +A convenient way to do this is to give commands to the clock daemon +.Pn /usr/sbin/cron +to be executed every day at a specified time. +This is done by adding lines to +.Pn /etc/crontab.local ; +see +.Xr cron (8) +for details. +.Sh 2 "Resource control" +.PP +Resource control in the current version of UNIX is more +elaborate than in most UNIX systems. The disk quota +facilities developed at the University of Melbourne have +been incorporated in the system and allow control over the +number of files and amount of disk space each user and/or group may use +on each filesystem. In addition, the resources consumed +by any single process can be limited by the mechanisms of +.Xr setrlimit (2). +As distributed, the latter mechanism +is voluntary, though sites may choose to modify the login +mechanism to impose limits not covered with disk quotas. +.PP +To use the disk quota facilities, the system must be +configured with ``options QUOTA''. Filesystems may then +be placed under the quota mechanism by creating a null file +.Pn quota.user +and/or +.Pn quota.group +at the root of the filesystem, running +.Xr quotacheck (8), +and modifying +.Pn /etc/fstab +to show that the filesystem is to run +with disk quotas (options userquota and/or groupquota). +The +.Xr quotaon (8) +program may then be run to enable quotas. +.PP +Individual quotas are applied by using the quota editor +.Xr edquota (8). +Users may view their quotas (but not those of other users) with the +.Xr quota (1) +program. The +.Xr repquota (8) +program may be used to summarize the quotas and current +space usage on a particular filesystem or filesystems. +.PP +Quotas are enforced with \fIsoft\fP and \fIhard\fP limits. +When a user and/or group first reaches a soft limit on a resource, a +message is generated on their terminal. If the user and/or group fails to +lower the resource usage below the soft limit +for longer than the time limit established for that filesystem +(default seven days) the system then treats the soft limit as a +\fIhard\fP limit and disallows any allocations until enough space is +reclaimed to bring the user and/or group back below the soft limit. +Hard limits are enforced strictly resulting in errors when a user +and/or group tries to create or write a file. Each time a hard limit is +exceeded the system will generate a message on the user's terminal. +.PP +Consult the auxiliary document, ``Disc Quotas in a UNIX Environment'' (SMM:4) +and the appropriate manual entries for more information. +.Sh 2 "Network troubleshooting" +.PP +If you have anything more than a trivial network configuration, +from time to time you are bound to run into problems. Before +blaming the software, first check your network connections. On +networks such as the Ethernet a +loose cable tap or misplaced power cable can result in severely +deteriorated service. The +.Xr netstat (1) +program may be of aid in tracking down hardware malfunctions. +In particular, look at the \fB\-i\fP and \fB\-s\fP options in the manual page. +.PP +Should you believe a communication protocol problem exists, +consult the protocol specifications and attempt to isolate the +problem in a packet trace. The SO_DEBUG option may be supplied +before establishing a connection on a socket, in which case the +system will trace all traffic and internal actions (such as timers +expiring) in a circular trace buffer. +This buffer may then be printed out with the +.Xr trpt (8) +program. +Most of the servers distributed with the system +accept a \fB\-d\fP option forcing +all sockets to be created with debugging turned on. +Consult the appropriate manual pages for more information. +.Sh 2 "Files that need periodic attention" +.PP +We conclude the discussion of system operations by listing +the files that require periodic attention or are system specific: +.TS +center; +lfC l. +/etc/fstab how disk partitions are used +/etc/disktab default disk partition sizes/labels +/etc/printcap printer database +/etc/gettytab terminal type definitions +/etc/remote names and phone numbers of remote machines for \fItip\fP(1) +/etc/group group memberships +/etc/motd message of the day +/etc/master.passwd password file; each account has a line +/etc/rc.local local system restart script; runs reboot; starts daemons +/etc/inetd.conf local internet servers +/etc/hosts local host name database +/etc/networks network name database +/etc/services network services database +/etc/hosts.equiv hosts under same administrative control +/etc/syslog.conf error log configuration for \fIsyslogd\fP\|(8) +/etc/ttys enables/disables ports +/etc/crontab commands that are run periodically +/etc/crontab.local local commands that are run periodically +/etc/aliases mail forwarding and distribution groups +/var/account/acct raw process account data +/var/log/messages system error log +/var/log/wtmp login session accounting +.TE +.pn 2 +.bp +.PX diff --git a/share/doc/smm/01.setup/Makefile b/share/doc/smm/01.setup/Makefile new file mode 100644 index 0000000..ce68a5c --- /dev/null +++ b/share/doc/smm/01.setup/Makefile @@ -0,0 +1,15 @@ +# @(#)Makefile 8.1 (Berkeley) 7/27/93 + +DIR= smm/01.setup +SRCS= 0.t 1.t 2.t 3.t 4.t 5.t 6.t +FILES= ${SRCS} +MACROS= -ms + +paper.ps: ${SRCS} + ${TBL} ${SRCS} | ${ROFF} > ${.TARGET} + +install: ${SRCS} + install -c -o ${BINOWN} -g ${BINGRP} -m 444 \ + Makefile ${FILES} ${EXTRA} ${DESTDIR}${BINDIR}/${DIR} + +.include <bsd.doc.mk> diff --git a/share/doc/smm/01.setup/spell.ok b/share/doc/smm/01.setup/spell.ok new file mode 100644 index 0000000..c4f58a2 --- /dev/null +++ b/share/doc/smm/01.setup/spell.ok @@ -0,0 +1,618 @@ +A1096A +AA +ACU +AMD +Automounter +BA +BLOCKSIZE +BSD +Bb +Bostic +Bourne +Bs +Bz +CCI +CCITT +CLNP +CLTP +COMPAT +CPU's +CS80 +CSRG +CW +Catseye +Cyl +DAT +DECstation +DESTDIR +DISK's +DISKTYPE +DMA +DN11 +DV +DaVinci +Dk +Dn +Dy +EBCDIC +EEPROM's +EINTR +EISA +EOT +ERESTART +ESIS +Emulex +Exabyte +FDDI +FIPS +FPU +FTAM +Filesystem +Filesystems +GCC +GENERIC.hp300 +GX +Gatorbox +HDLC +HIL +HP +HP's +HP300 +HP300s +HP433 +HP9000 +HPBSD +HPUXCOMPAT +Hibler +IB +ICMP +IDP +IDs +IFLNK +IP +IPC +IPSENDREDIRECTS +IPX +ISA +ISO +ISVTX +Intel +Jul +Karels +Kerberos +L.aliases +L.cmds +L.sys +LAN +LAPB +LFS +LH +LK201 +LOGFILE +Leffler +Luna +MAKEDEV.local +MB +MC68040 +MFS +MIB +MIPS +MISC +MMU +MT02 +Macklem +Makefile +Makefiles +Maxtor +McKusick +NFS +NIC.ARPA +NPSECT +NTP +OHPUX +OS +OSI +OSes +Omron +PCATCH +PDT +PMAD +PMAG +PMAX +PMAZ +POSIX +POSIX.1 +POSIX.2 +PSD:5 +PVRX +Pathnames +Pendry +Postel +README +RFC +RH +RISC +ROM +RS232 +RZ23 +RZ55 +RZ57 +SCSI +SEQF +SIOCGIFCONF +SLC +SMM:1 +SMM:10 +SMM:13 +SMM:14 +SMM:2 +SMM:3 +SMM:4 +SMM:6 +SMM:7 +SMM:8 +SMM:9 +SMTP +SPARC +SPARCstation +SPP +SRC +SUNOS +Sbus +Solaris +Standalone +Std1003.1 +Std1003.2 +SunOS +TAI +TAPE's +TBOOT +TCP +TIOCSCTTY +TK50 +TM +TP4 +TURBOchannel +TVRX +TZ +Tcpmux +Topcat +Tue +UCB +UDP +UFS +ULTRIX +ULTRIXCOMPAT +UNIX''SMM:1 +USERFILE +USL +UTC +UUAIDS +UX +Ux +VAX +VFS +VME +X11R5 +XX +Xinu +a,c,u,p +a.out +adaptor +adaptors +addrlen +adiron +adm +aka +aliases.db +amd +autochanger +autoconf +autoconfiguration +autoconfigures +bdes +bootblock +bootimage +bootp +bootpath +bootrom +bootsd +bootstrapped +bs +bsd +bsd.README +btree +bwtwo +c.f +callback +cbosg +cbosgd +centronics +cfb0 +cgsix +cgthree +changelist +chflags +chico +chpass +cksum +cleandir +cleanerd +clnp +cltp +conf +conformant +contrib +cpio +crontab +crontab.local +cs +csh.cshrc +csh.login +csh.logout +cshrc +ct +cul0 +db +dbopen +dc7085 +deadfs +dev +dgram +dialcode +dialcodes +dict +disk3 +diskful +disklabel +disklabels +disktab +dm +dm.conf +dm.config +dma +doc +endian +es +esis +ext +fd +fdesc +fifofs +files.HOST +fileservers +filesystem +filesystems +foo +frags +friend.host.inet.number +fsf +fstab +fstype +ftpusers +ftpwelcome +fts +funopen +gcc +genvmunix +getcap +gettytab +gid +gid's +gids +groff +groupquota +hangup +hanoi +heapsort +hexdump +hier +host.inet.number +hostmaster +hosts.equiv +hosts.lpd +hp +hp300 +hpib0 +inetd.conf +inline +inode +int +intr +iob +iso +kbyte +kbytes +kdb +kdump +kerberos +kerberosIV +kernfs +kmem +krb.conf +ksh +ktrace +kvm +labelling +lastlog +ld.so.cache +le +le0 +lfs +lib +libc +libdata +libedit +libexec +libkern +libkvm +libutil +localhost +lofs +logname +loopback +lq +lun +luna68k +magtape +mail.local +mail.rc +maillog +maillog.0 +maillog.1 +maillog.2 +maillog.3 +maillog.4 +maillog.5 +maillog.6 +maillog.7 +makefiles +man.conf +man0 +manl +master.passwd +maxine +mckusick +mdec +mediainit +mem +mergesort +mfb0 +mfs +misc +miscfs +mk +mkdb +mkdep +mkfifo +mmap +mnt +mono +motd +mountd +mqueue +msgbuf +mtree +my.domain +myfriend +myfriend.my.domain +myname +myname.my.domain +mysitename +namelen +net.inet.ip.redirect +netgroup +netinet +netiso +netmask +netns +netstart +netx25 +newdev +newlfs +news3400 +newvmunix +nfs +nfsd +nfsiod +nfsstat +nfssvc +nodump +nowait +npsect +nr +nrmt0 +nrst0 +nsect +nullfs +nvi +obj +ogin +ok +okeeffe.CS.Berkeley.EDU +olddev +oldroot +opr +osockaddr +out0123456789 +out2010123456 +pageable +pathname +pathnames +pcc +picasso.CS.Berkeley.EDU +pid +pm0 +pmake +pmap +pmax +posix +printcap +pt0 +pty +pty.c +pty0 +pty1 +pty2 +pty3 +ptyp +pwd.db +quota.group +quota.user +quotas.user +radixsort +rc.local +rct +rd +rd0 +rdsk +recno +rew +rf +rhosts +rmt0 +rmt12 +ro +roff +root.dump +root.image +routedflags +rq +rrd0d +rrz?a +rrz?c +rsd0d +rsd3a +rsf +rst0 +rw +rxx0 +rz +rz0 +rz1c +rz?a +sbin +sc14 +sc7 +scsi0 +scsiformat +sd +sd0 +sd2b +sd3 +sd3a +sd660 +secretmail +securelevel +securettys +sendmail.cf +setsid +setup.tblms +shar +shareable +sizeof +skel +sockaddr +sparc +specfs +spwd.db +sr +src +srvtab +st +st.st +standalone +std +std.9600 +stderr +stdin +stdout +subr +sunos +sw +sy +sysctl +sysctl.c +syslog.0 +syslog.1 +syslog.2 +syslog.3 +syslog.4 +syslog.5 +syslog.6 +syslog.7 +syslog.conf +tahoe +tapehost +tcp +termios +tmac +tmp +toor +tps +tput +tsleep +tty.c +tty00 +ttya +ttyb +ttyd +ttyp +ttyp0 +ttytype +types.h +tz +tz6 +ucb +ufs +uid +uid's +uids +uipc +umap +umapfs +un.h +unaddr.sun +uname +unistd.h +userid +username +userquota +usr.bin +usr.sbin +utmp +uucp.daemon +uucppublic +uw +vangogh.CS.Berkeley.EDU +var +vax +ventel +vfs +vm +vmunix +vmunix.net +vmunix.tape +vnode +vnodes +vol +vt100 +wildcard +wr +wsrc +wtmp +xargs +xbpf +xcfb0 +xf +xp +xpbf +xpf +xsf +xx +xx0 +xxx +your.host.inet.number +yymmddhhmm +zA +zoneinfo |