diff options
Diffstat (limited to 'usr.sbin/sysinstall/installUpgrade.c')
-rw-r--r-- | usr.sbin/sysinstall/installUpgrade.c | 526 |
1 files changed, 526 insertions, 0 deletions
diff --git a/usr.sbin/sysinstall/installUpgrade.c b/usr.sbin/sysinstall/installUpgrade.c new file mode 100644 index 0000000..82569f6 --- /dev/null +++ b/usr.sbin/sysinstall/installUpgrade.c @@ -0,0 +1,526 @@ +/* + * The new sysinstall program. + * + * This is probably the last program in the `sysinstall' line - the next + * generation being essentially a complete rewrite. + * + * $FreeBSD$ + * + * Copyright (c) 1995 + * Jordan Hubbard. 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, + * verbatim and that no modifications are made prior to this + * point in the file. + * 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. + * + * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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. + * + */ + +#include "sysinstall.h" +#include <sys/disklabel.h> +#include <sys/errno.h> +#include <sys/ioctl.h> +#include <sys/fcntl.h> +#include <sys/wait.h> +#include <sys/param.h> +#include <sys/stat.h> +#include <unistd.h> +#include <sys/mount.h> + +static int installUpgradeNonInteractive(dialogMenuItem *self); + +typedef struct _hitList { + enum { JUST_COPY, CALL_HANDLER } action ; + char *name; + Boolean optional; + void (*handler)(struct _hitList *self); +} HitList; + +/* These are the only meaningful files I know about */ +static HitList etc_files [] = { + { JUST_COPY, "Xaccel.ini", TRUE, NULL }, + { JUST_COPY, "X11", TRUE, NULL }, + { JUST_COPY, "adduser.conf", TRUE, NULL }, + { JUST_COPY, "aliases", TRUE, NULL }, + { JUST_COPY, "aliases.db", TRUE, NULL }, + { JUST_COPY, "amd.map", TRUE, NULL }, + { JUST_COPY, "auth.conf", TRUE, NULL }, + { JUST_COPY, "crontab", TRUE, NULL }, + { JUST_COPY, "csh.cshrc", TRUE, NULL }, + { JUST_COPY, "csh.login", TRUE, NULL }, + { JUST_COPY, "csh.logout", TRUE, NULL }, + { JUST_COPY, "cvsupfile", TRUE, NULL }, + { JUST_COPY, "devfs.conf", TRUE, NULL }, + { JUST_COPY, "dhclient.conf", TRUE, NULL }, + { JUST_COPY, "disktab", TRUE, NULL }, + { JUST_COPY, "dumpdates", TRUE, NULL }, + { JUST_COPY, "exports", TRUE, NULL }, + { JUST_COPY, "fbtab", TRUE, NULL }, + { JUST_COPY, "fstab", FALSE, NULL }, + { JUST_COPY, "ftpusers", TRUE, NULL }, + { JUST_COPY, "gettytab", TRUE, NULL }, + { JUST_COPY, "gnats", TRUE, NULL }, + { JUST_COPY, "group", FALSE, NULL }, + { JUST_COPY, "hosts", TRUE, NULL }, + { JUST_COPY, "hosts.allow", TRUE, NULL }, + { JUST_COPY, "hosts.equiv", TRUE, NULL }, + { JUST_COPY, "hosts.lpd", TRUE, NULL }, + { JUST_COPY, "inetd.conf", TRUE, NULL }, + { JUST_COPY, "localtime", TRUE, NULL }, + { JUST_COPY, "login.access", TRUE, NULL }, + { JUST_COPY, "login.conf", TRUE, NULL }, + { JUST_COPY, "mail", TRUE, NULL }, + { JUST_COPY, "mail.rc", TRUE, NULL }, + { JUST_COPY, "mac.conf", TRUE, NULL }, + { JUST_COPY, "make.conf", TRUE, NULL }, + { JUST_COPY, "manpath.config", TRUE, NULL }, + { JUST_COPY, "master.passwd", FALSE, NULL }, + { JUST_COPY, "mergemaster.rc", TRUE, NULL }, + { JUST_COPY, "motd", TRUE, NULL }, + { JUST_COPY, "namedb", TRUE, NULL }, + { JUST_COPY, "networks", TRUE, NULL }, + { JUST_COPY, "newsyslog.conf", TRUE, NULL }, + { JUST_COPY, "nsmb.conf", TRUE, NULL }, + { JUST_COPY, "nsswitch.conf", TRUE, NULL }, + { JUST_COPY, "ntp.conf", TRUE, NULL }, + { JUST_COPY, "pam.conf", TRUE, NULL }, + { JUST_COPY, "passwd", TRUE, NULL }, + { JUST_COPY, "periodic", TRUE, NULL }, + { JUST_COPY, "pf.conf", TRUE, NULL }, + { JUST_COPY, "portsnap.conf", TRUE, NULL }, + { JUST_COPY, "ppp", TRUE, NULL }, + { JUST_COPY, "printcap", TRUE, NULL }, + { JUST_COPY, "profile", TRUE, NULL }, + { JUST_COPY, "protocols", TRUE, NULL }, + { JUST_COPY, "pwd.db", TRUE, NULL }, + { JUST_COPY, "rc.local", TRUE, NULL }, + { JUST_COPY, "rc.firewall", TRUE, NULL }, + { JUST_COPY, "rc.conf.local", TRUE, NULL }, + { JUST_COPY, "remote", TRUE, NULL }, + { JUST_COPY, "resolv.conf", TRUE, NULL }, + { JUST_COPY, "rmt", TRUE, NULL }, + { JUST_COPY, "sendmail.cf", TRUE, NULL }, + { JUST_COPY, "sendmail.cw", TRUE, NULL }, + { JUST_COPY, "services", TRUE, NULL }, + { JUST_COPY, "shells", TRUE, NULL }, + { JUST_COPY, "skeykeys", TRUE, NULL }, + { JUST_COPY, "snmpd.config", TRUE, NULL }, + { JUST_COPY, "spwd.db", TRUE, NULL }, + { JUST_COPY, "src.conf", TRUE, NULL }, + { JUST_COPY, "ssh", TRUE, NULL }, + { JUST_COPY, "sysctl.conf", TRUE, NULL }, + { JUST_COPY, "syslog.conf", TRUE, NULL }, + { JUST_COPY, "ttys", TRUE, NULL }, + { 0, NULL, FALSE, NULL }, +}; + +static void +traverseHitlist(HitList *h) +{ + system("rm -rf /etc/upgrade"); + Mkdir("/etc/upgrade"); + while (h->name) { + if (!file_readable(h->name)) { + if (!h->optional) + msgConfirm("Unable to find an old /etc/%s file! That is decidedly non-standard and\n" + "your upgraded system may function a little strangely as a result.", h->name); + } + else { + if (h->action == JUST_COPY) { + /* Move the just-loaded copy aside */ + vsystem("mv /etc/%s /etc/upgrade/%s", h->name, h->name); + + /* Copy the old one into its place */ + msgNotify("Resurrecting %s..", h->name); + /* Do this with tar so that symlinks and such are preserved */ + if (vsystem("tar cf - %s | tar xpf - -C /etc", h->name)) + msgConfirm("Unable to resurrect your old /etc/%s! Hmmmm.", h->name); + } + else /* call handler */ + h->handler(h); + } + ++h; + } +} + +int +installUpgrade(dialogMenuItem *self) +{ + char saved_etc[FILENAME_MAX]; + Boolean extractingBin = TRUE; + + if (variable_get(VAR_NONINTERACTIVE)) + return installUpgradeNonInteractive(self); + + variable_set2(SYSTEM_STATE, "upgrade", 0); + dialog_clear(); + + if (msgYesNo("Before beginning a binary upgrade, please review the upgrade instructions,\n" + "which are located in the \"Install\" document under the main documentation\n" + "menu. Given that you have read these instructions and understand the risks\n" + "and precautions involved, are you sure that you want to proceed with\n" + "this upgrade?") != 0) + return DITEM_FAILURE; + + if (!Dists) { + msgConfirm("First, you must select some distribution components. The upgrade procedure\n" + "will only upgrade the distributions you select in the next set of menus."); + if (!dmenuOpenSimple(&MenuDistributions, FALSE) || !Dists) + return DITEM_FAILURE; + } + else if (!(Dists & DIST_BASE)) { /* No base selected? Not much of an upgrade.. */ + if (msgYesNo("You didn't select the base distribution as one of the distributons to load.\n" + "This one is pretty vital to a successful upgrade. Are you SURE you don't\n" + "want to select the base distribution? Chose No to bring up the Distributions\n" + "menu again.") != 0) { + if (!dmenuOpenSimple(&MenuDistributions, FALSE)) + return DITEM_FAILURE; + } + } + + /* Still?! OK! They must know what they're doing.. */ + if (!(Dists & DIST_BASE)) + extractingBin = FALSE; + + if (RunningAsInit) { + Device **devs; + int i, cnt; + char *cp; + + cp = variable_get(VAR_DISK); + devs = deviceFind(cp, DEVICE_TYPE_DISK); + cnt = deviceCount(devs); + if (!cnt) { + msgConfirm("No disks found! Please verify that your disk controller is being\n" + "properly probed at boot time. See the Hardware Guide on the\n" + "Documentation menu for clues on diagnosing this type of problem."); + return DITEM_FAILURE | DITEM_RESTORE; + } + else { + /* Enable all the drives before we start */ + for (i = 0; i < cnt; i++) + devs[i]->enabled = TRUE; + } + + msgConfirm("OK. First, we're going to go to the disk label editor. In this editor\n" + "you will be expected to Mount any partitions you're interested in\n" + "upgrading. DO NOT set the Newfs flag to Y on anything in the label editor\n" + "unless you're absolutely sure you know what you're doing! In this\n" + "instance, you'll be using the label editor as little more than a fancy\n" + "screen-oriented partition mounting tool.\n\n" + "Once you're done in the label editor, press Q to return here for the next\n" + "step."); + + if (DITEM_STATUS(diskLabelEditor(self)) == DITEM_FAILURE) { + msgConfirm("The disk label editor returned an error status. Upgrade operation\n" + "aborted."); + return DITEM_FAILURE | DITEM_RESTORE; + } + + /* Don't write out MBR info */ + variable_set2(DISK_PARTITIONED, "written", 0); + if (DITEM_STATUS(diskLabelCommit(self)) == DITEM_FAILURE) { + msgConfirm("Not all file systems were properly mounted. Upgrade operation\n" + "aborted."); + variable_unset(DISK_PARTITIONED); + return DITEM_FAILURE | DITEM_RESTORE; + } + + msgNotify("Updating /stand on root filesystem"); + (void)vsystem("find -x /stand | cpio %s -pdum /mnt", cpioVerbosity()); + + if (DITEM_STATUS(chroot("/mnt")) == DITEM_FAILURE) { + msgConfirm("Unable to chroot to /mnt - something is wrong with the\n" + "root partition or the way it's mounted if this doesn't work."); + variable_unset(DISK_PARTITIONED); + return DITEM_FAILURE | DITEM_RESTORE; + } + chdir("/"); + installEnvironment(); + systemCreateHoloshell(); + } + + saved_etc[0] = '\0'; + + /* Don't allow sources to be upgraded if we have src already */ + if (directory_exists("/usr/src/") && (Dists & DIST_SRC)) { + Dists &= ~DIST_SRC; + SrcDists = 0; + msgConfirm("Warning: /usr/src exists and sources were selected as upgrade\n" + "targets. Unfortunately, this is not the way to upgrade your\n" + "sources - please use CTM or CVSup or some other method which\n" + "handles ``deletion events'', unlike this particular feature.\n\n" + "Your existing /usr/src will not be affected by this upgrade.\n"); + } + + if (extractingBin) { + while (!*saved_etc) { + char *cp = msgGetInput("/var/tmp/etc", "Under which directory do you wish to save your current /etc?"); + + if (!cp || !*cp || Mkdir(cp)) { + if (msgYesNo("Directory was not specified, was invalid or user selected Cancel.\n\n" + "Doing an upgrade without first backing up your /etc directory is a very\n" + "bad idea! Do you want to go back and specify the save directory again?") != 0) + break; + } + else { + SAFE_STRCPY(saved_etc, cp); + } + } + + if (saved_etc[0]) { + msgNotify("Preserving /etc directory.."); + if (vsystem("tar -cBpf - -C /etc . | tar --unlink -xBpf - -C %s", saved_etc)) + if (msgYesNo("Unable to backup your /etc into %s.\n" + "Do you want to continue anyway?", saved_etc) != 0) + return DITEM_FAILURE; + msgNotify("Preserving /root directory.."); + vsystem("tar -cBpf - -C / root | tar --unlink -xBpf - -C %s", saved_etc); + } + + msgNotify("chflags'ing old binaries - please wait."); + (void)vsystem("chflags -R noschg /bin /sbin /lib /libexec /usr/bin /usr/sbin /usr/lib /usr/libexec /var/empty /boot/kernel*"); + + if (directory_exists("/boot/kernel")) { + if (directory_exists("/boot/kernel.prev")) { + msgNotify("Removing /boot/kernel.prev"); + if (system("rm -fr /boot/kernel.prev")) { + msgConfirm("NOTICE: I'm trying to back up /boot/kernel to\n" + "/boot/kernel.prev, but /boot/kernel.prev exists and I\n" + "can't remove it. This means that the backup will, in\n" + "all probability, fail."); + } + } + msgNotify("Moving old kernel to /boot/kernel.prev"); + if (system("mv /boot/kernel /boot/kernel.prev")) { + if (!msgYesNo("Hmmm! I couldn't move the old kernel over! Do you want to\n" + "treat this as a big problem and abort the upgrade? Due to the\n" + "way that this upgrade process works, you will have to reboot\n" + "and start over from the beginning. Select Yes to reboot now")) + systemShutdown(1); + } + else + msgConfirm("NOTICE: Your old kernel is in /boot/kernel.prev should this\n" + "upgrade fail for any reason and you need to boot your old\n" + "kernel."); + } + } + +media: + /* We do this very late, but we unfortunately need to back up /etc first */ + if (!mediaVerify()) + return DITEM_FAILURE; + + if (!DEVICE_INIT(mediaDevice)) { + if (!msgYesNo("Couldn't initialize the media. Would you like\n" + "to adjust your media selection and try again?")) { + mediaDevice = NULL; + goto media; + } + else + return DITEM_FAILURE | DITEM_REDRAW | DITEM_RESTORE; + } + + msgNotify("Beginning extraction of distributions."); + if (DITEM_STATUS(distExtractAll(self)) == DITEM_FAILURE) { + msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n" + "should be considered a failure and started from the beginning, sorry!\n" + "The system will reboot now."); + dialog_clear(); + systemShutdown(1); + } + else if (Dists) { + if (!extractingBin || !(Dists & DIST_BASE)) { + msgNotify("The extraction process seems to have had some problems, but we got most\n" + "of the essentials. We'll treat this as a warning since it may have been\n" + "only non-essential distributions which failed to load."); + } + else { + msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n" + "should be considered a failure and started from the beginning, sorry!\n" + "The system will reboot now."); + dialog_clear(); + systemShutdown(1); + } + } + + if (extractingBin) + vsystem("disklabel -B `awk '$2~/\\/$/ {print substr($1, 6, 5)}' /etc/fstab`"); + msgNotify("First stage of upgrade completed successfully!\n\n" + "Next comes stage 2, where we attempt to resurrect your /etc\n" + "directory!"); + + if (chdir(saved_etc)) { + msgConfirm("Unable to go to your saved /etc directory in %s?! Argh!\n" + "Something went seriously wrong! It's quite possible that\n" + "your former /etc is toast. I hope you didn't have any\n" + "important customizations you wanted to keep in there.. :(", saved_etc); + } + else { + /* Now try to resurrect the /etc files */ + traverseHitlist(etc_files); + /* Resurrect the root dotfiles */ + vsystem("tar -cBpf - root | tar -xBpf - -C / && rm -rf root"); + } + + msgConfirm("Upgrade completed! All of your old /etc files have been restored.\n" + "For your reference, the new /etc files are in /etc/upgrade/ in case\n" + "you wish to upgrade these files by hand (though that should not be\n" + "strictly necessary). If your root partition is specified in /etc/fstab\n" + "using the old \"compatibility\" slice, you may also wish to update it to\n" + "use a fully qualified slice name in order to avoid warnings on startup.\n\n" + "When you're ready to reboot into the new system, simply exit the installation."); + return DITEM_SUCCESS | DITEM_REDRAW | DITEM_RESTORE; +} + +static int +installUpgradeNonInteractive(dialogMenuItem *self) +{ + char *saved_etc; + Boolean extractingBin = TRUE; + + variable_set2(SYSTEM_STATE, "upgrade", 0); + + /* Make sure at least BIN is selected */ + Dists |= DIST_BASE; + + if (RunningAsInit) { + Device **devs; + int i, cnt; + char *cp; + + cp = variable_get(VAR_DISK); + devs = deviceFind(cp, DEVICE_TYPE_DISK); + cnt = deviceCount(devs); + if (!cnt) { + msgConfirm("No disks found! Please verify that your disk controller is being\n" + "properly probed at boot time. See the Hardware Guide on the\n" + "Documentation menu for clues on diagnosing this type of problem."); + return DITEM_FAILURE; + } + else { + /* Enable all the drives before we start */ + for (i = 0; i < cnt; i++) + devs[i]->enabled = TRUE; + } + + msgConfirm("OK. First, we're going to go to the disk label editor. In this editor\n" + "you will be expected to Mount any partitions you're interested in\n" + "upgrading. DO NOT set the Newfs flag to Y on anything in the label editor\n" + "unless you're absolutely sure you know what you're doing! In this\n" + "instance, you'll be using the label editor as little more than a fancy\n" + "screen-oriented partition mounting tool.\n\n" + "Once you're done in the label editor, press Q to return here for the next\n" + "step."); + + if (DITEM_STATUS(diskLabelEditor(self)) == DITEM_FAILURE) { + msgConfirm("The disk label editor returned an error status. Upgrade operation\n" + "aborted."); + return DITEM_FAILURE; + } + + /* Don't write out MBR info */ + variable_set2(DISK_PARTITIONED, "written", 0); + if (DITEM_STATUS(diskLabelCommit(self)) == DITEM_FAILURE) { + msgConfirm("Not all file systems were properly mounted. Upgrade operation\n" + "aborted."); + variable_unset(DISK_PARTITIONED); + return DITEM_FAILURE; + } + + if (extractingBin) { + msgNotify("chflags'ing old binaries - please wait."); + (void)vsystem("chflags -R noschg /mnt/"); + } + msgNotify("Updating /stand on root filesystem"); + (void)vsystem("find -x /stand | cpio %s -pdum /mnt", cpioVerbosity()); + + if (DITEM_STATUS(chroot("/mnt")) == DITEM_FAILURE) { + msgConfirm("Unable to chroot to /mnt - something is wrong with the\n" + "root partition or the way it's mounted if this doesn't work."); + variable_unset(DISK_PARTITIONED); + return DITEM_FAILURE; + } + chdir("/"); + systemCreateHoloshell(); + } + + if (!mediaVerify() || !DEVICE_INIT(mediaDevice)) { + msgNotify("Upgrade: Couldn't initialize media."); + return DITEM_FAILURE; + } + + saved_etc = "/var/tmp/etc"; + Mkdir(saved_etc); + msgNotify("Preserving /etc directory.."); + if (vsystem("tar -cpBf - -C /etc . | tar -xpBf - -C %s", saved_etc)) { + msgNotify("Unable to backup your /etc into %s.", saved_etc); + return DITEM_FAILURE; + } + + /* + * Back up the old kernel, leaving it in place in case we + * crash and reboot. + */ + if (directory_exists("/boot/kernel")) { + if (directory_exists("/boot/kernel.prev")) { + msgNotify("Removing /boot/kernel.prev"); + if (system("rm -fr /boot/kernel.prev")) { + msgConfirm("NOTICE: I'm trying to back up /boot/kernel to\n" + "/boot/kernel.prev, but /boot/kernel.prev exists and I\n" + "can't remove it. This means that the backup will, in\n" + "all probability, fail."); + } + } + msgNotify("Copying old kernel to /boot/kernel.prev"); + vsystem("cp -Rp /boot/kernel /boot/kernel.prev"); + } + + msgNotify("Beginning extraction of distributions."); + if (DITEM_STATUS(distExtractAll(self)) == DITEM_FAILURE) { + msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n" + "should be considered a failure and started from the beginning, sorry!\n" + "The system will reboot now."); + dialog_clear(); + systemShutdown(1); + } + else if (Dists) { + if (!(Dists & DIST_BASE)) { + msgNotify("The extraction process seems to have had some problems, but we got most\n" + "of the essentials. We'll treat this as a warning since it may have been\n" + "only non-essential distributions which failed to upgrade."); + } + else { + msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n" + "should be considered a failure and started from the beginning, sorry!\n" + "The system will reboot now."); + dialog_clear(); + systemShutdown(1); + } + } + + msgNotify("First stage of upgrade completed successfully."); + if (vsystem("tar -cpBf - -C %s . | tar --unlink -xpBf - -C /etc", saved_etc)) { + msgNotify("Unable to resurrect your old /etc!"); + return DITEM_FAILURE; + } + return DITEM_SUCCESS | DITEM_REDRAW; +} |