summaryrefslogtreecommitdiffstats
path: root/meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch')
-rw-r--r--meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch240
1 files changed, 240 insertions, 0 deletions
diff --git a/meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch b/meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch
new file mode 100644
index 0000000..52be862
--- /dev/null
+++ b/meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch
@@ -0,0 +1,240 @@
+diff -urN dosfstools-2.10.orig/mkdosfs/ChangeLog dosfstools-2.10/mkdosfs/ChangeLog
+--- dosfstools-2.10.orig/mkdosfs/ChangeLog 1997-06-18 03:09:38.000000000 -0700
++++ dosfstools-2.10/mkdosfs/ChangeLog 2004-08-02 20:57:57.734939816 -0700
+@@ -1,3 +1,14 @@
++19th June 2003 Sam Bingner (sam@bingner.com)
++
++ Added option to read in bootcode from a file so that if you have
++ for example Windows 2000 boot code, you can have it write that
++ as the bootcode. This is a dump of the behinning of a partition
++ generally 512 bytes, but can be up to reserved sectors*512 bytes.
++ Also writes 0x80 as the BIOS drive number if we are formatting a
++ hard drive, and sets the number of hidden sectors to be the
++ number of sectors in one track. These were required so that DOS
++ could boot using the bootcode.
++
+ 28th January 1995 H. Peter Anvin (hpa@yggdrasil.com)
+
+ Better algorithm to select cluster sizes on large filesystems.
+diff -urN dosfstools-2.10.orig/mkdosfs/mkdosfs.8 dosfstools-2.10/mkdosfs/mkdosfs.8
+--- dosfstools-2.10.orig/mkdosfs/mkdosfs.8 2003-05-15 11:28:28.000000000 -0700
++++ dosfstools-2.10/mkdosfs/mkdosfs.8 2004-08-02 20:57:57.735939664 -0700
+@@ -40,6 +40,10 @@
+ .I message-file
+ ]
+ [
++.B \-B
++.I bootcode-file
++]
++[
+ .B \-n
+ .I volume-name
+ ]
+@@ -155,6 +159,18 @@
+ carriage return-line feed combinations, and tabs have been expanded.
+ If the filename is a hyphen (-), the text is taken from standard input.
+ .TP
++.BI \-B " bootcode-file"
++Uses boot machine code from file "file". On any thing other than FAT32,
++this only writes the first 3 bytes, and 480 bytes from offset 3Eh. On
++FAT32, this writes the first 3 bytes, 420 bytes from offset 5Ah to both
++primary and backup boot sectors. Also writes all other reserved sectors
++excluding the sectors following boot sectors (usually sector 2 and 7).
++Does not require that the input file be as large as reserved_sectors*512.
++To make a FAT32 partition bootable, you will need at least the first
++13 sectors (6656 bytes). You can also specify a partition as the argument
++to clone the boot code from that partition.
++i.e mkdosfs -B /dev/sda1 /dev/sda1
++.TP
+ .BI \-n " volume-name"
+ Sets the volume name (label) of the filesystem. The volume name can
+ be up to 11 characters long. The default is no label.
+@@ -188,8 +204,9 @@
+ simply will not support it ;)
+ .SH AUTHOR
+ Dave Hudson - <dave@humbug.demon.co.uk>; modified by Peter Anvin
+-<hpa@yggdrasil.com>. Fixes and additions by Roman Hodek
+-<Roman.Hodek@informatik.uni-erlangen.de> for Debian/GNU Linux.
++<hpa@yggdrasil.com> and Sam Bingner <sam@bingner.com>. Fixes and
++additions by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
++for Debian/GNU Linux.
+ .SH ACKNOWLEDGEMENTS
+ .B mkdosfs
+ is based on code from
+diff -urN dosfstools-2.10.orig/mkdosfs/mkdosfs.c dosfstools-2.10/mkdosfs/mkdosfs.c
+--- dosfstools-2.10.orig/mkdosfs/mkdosfs.c 2003-06-14 13:07:08.000000000 -0700
++++ dosfstools-2.10/mkdosfs/mkdosfs.c 2004-08-02 20:57:57.736939512 -0700
+@@ -24,6 +24,12 @@
+ - New options -A, -S, -C
+ - Support for filesystems > 2GB
+ - FAT32 support
++
++ Fixes/additions June 2003 by Sam Bingner
++ <sam@bingner.com>:
++ - Add -B option to read in bootcode from a file
++ - Write BIOS drive number so that FS can properly boot
++ - Set number of hidden sectors before boot code to be one track
+
+ Copying: Copyright 1993, 1994 David Hudson (dave@humbug.demon.co.uk)
+
+@@ -167,6 +173,8 @@
+ #define FAT_BAD 0x0ffffff7
+
+ #define MSDOS_EXT_SIGN 0x29 /* extended boot sector signature */
++#define HD_DRIVE_NUMBER 0x80 /* Boot off first hard drive */
++#define FD_DRIVE_NUMBER 0x00 /* Boot off first floppy drive */
+ #define MSDOS_FAT12_SIGN "FAT12 " /* FAT12 filesystem signature */
+ #define MSDOS_FAT16_SIGN "FAT16 " /* FAT16 filesystem signature */
+ #define MSDOS_FAT32_SIGN "FAT32 " /* FAT32 filesystem signature */
+@@ -188,6 +196,8 @@
+ #define BOOTCODE_SIZE 448
+ #define BOOTCODE_FAT32_SIZE 420
+
++#define MAX_RESERVED 0xFFFF
++
+ /* __attribute__ ((packed)) is used on all structures to make gcc ignore any
+ * alignments */
+
+@@ -215,7 +225,7 @@
+ __u16 fat_length; /* sectors/FAT */
+ __u16 secs_track; /* sectors per track */
+ __u16 heads; /* number of heads */
+- __u32 hidden; /* hidden sectors (unused) */
++ __u32 hidden; /* hidden sectors (one track) */
+ __u32 total_sect; /* number of sectors (if sectors == 0) */
+ union {
+ struct {
+@@ -298,6 +308,8 @@
+
+ /* Global variables - the root of all evil :-) - see these and weep! */
+
++static char *template_boot_code; /* Variable to store a full template boot sector in */
++static int use_template = 0;
+ static char *program_name = "mkdosfs"; /* Name of the program */
+ static char *device_name = NULL; /* Name of the device on which to create the filesystem */
+ static int atari_format = 0; /* Use Atari variation of MS-DOS FS format */
+@@ -842,6 +854,12 @@
+ vi->volume_id[2] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
+ vi->volume_id[3] = (unsigned char) (volume_id >> 24);
+ }
++ if (bs.media == 0xf8) {
++ vi->drive_number = HD_DRIVE_NUMBER; /* Set bios drive number to 80h */
++ }
++ else {
++ vi->drive_number = FD_DRIVE_NUMBER; /* Set bios drive number to 00h */
++ }
+
+ if (!atari_format) {
+ memcpy(vi->volume_label, volume_name, 11);
+@@ -886,7 +904,7 @@
+ printf( "Using %d reserved sectors\n", reserved_sectors );
+ bs.fats = (char) nr_fats;
+ if (!atari_format || size_fat == 32)
+- bs.hidden = CT_LE_L(0);
++ bs.hidden = bs.secs_track;
+ else
+ /* In Atari format, hidden is a 16 bit field */
+ memset( &bs.hidden, 0, 2 );
+@@ -1358,6 +1376,32 @@
+ * dir area on FAT12/16, and the first cluster on FAT32. */
+ writebuf( (char *) root_dir, size_root_dir, "root directory" );
+
++ if (use_template == 1) {
++ /* dupe template into reserved sectors */
++ seekto( 0, "Start of partition" );
++ if (size_fat == 32) {
++ writebuf( template_boot_code, 3, "backup jmpBoot" );
++ seekto( 0x5a, "sector 1 boot area" );
++ writebuf( template_boot_code+0x5a, 420, "sector 1 boot area" );
++ seekto( 512*2, "third sector" );
++ if (backup_boot != 0) {
++ writebuf( template_boot_code+512*2, backup_boot*sector_size - 512*2, "data to backup boot" );
++ seekto( backup_boot*sector_size, "backup boot sector" );
++ writebuf( template_boot_code, 3, "backup jmpBoot" );
++ seekto( backup_boot*sector_size+0x5a, "backup boot sector boot area" );
++ writebuf( template_boot_code+0x5a, 420, "backup boot sector boot area" );
++ seekto( (backup_boot+2)*sector_size, "sector following backup code" );
++ writebuf( template_boot_code+(backup_boot+2)*sector_size, (reserved_sectors-backup_boot-2)*512, "remaining data" );
++ } else {
++ writebuf( template_boot_code+512*2, (reserved_sectors-2)*512, "remaining data" );
++ }
++ } else {
++ writebuf( template_boot_code, 3, "jmpBoot" );
++ seekto( 0x3e, "sector 1 boot area" );
++ writebuf( template_boot_code+0x3e, 448, "boot code" );
++ }
++ }
++
+ if (info_sector) free( info_sector );
+ free (root_dir); /* Free up the root directory space from setup_tables */
+ free (fat); /* Free up the fat table space reserved during setup_tables */
+@@ -1371,7 +1415,7 @@
+ {
+ fatal_error("\
+ Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file] [-b backup-boot-sector]\n\
+- [-m boot-msg-file] [-n volume-name] [-i volume-id]\n\
++ [-m boot-msg-file] [-n volume-name] [-i volume-id] [-B bootcode]\n\
+ [-s sectors-per-cluster] [-S logical-sector-size] [-f number-of-FATs]\n\
+ [-F fat-size] [-r root-dir-entries] [-R reserved-sectors]\n\
+ /dev/name [blocks]\n");
+@@ -1433,7 +1477,7 @@
+ printf ("%s " VERSION " (" VERSION_DATE ")\n",
+ program_name);
+
+- while ((c = getopt (argc, argv, "AcCf:F:Ii:l:m:n:r:R:s:S:v")) != EOF)
++ while ((c = getopt (argc, argv, "AcCf:F:Ii:l:m:n:r:R:s:S:v:B:b")) != EOF)
+ /* Scan the command line for options */
+ switch (c)
+ {
+@@ -1494,6 +1538,51 @@
+ listfile = optarg;
+ break;
+
++ case 'B': /* B : read in bootcode */
++ if ( strcmp(optarg, "-") )
++ {
++ msgfile = fopen(optarg, "r");
++ if ( !msgfile )
++ perror(optarg);
++ }
++ else
++ msgfile = stdin;
++
++ if ( msgfile )
++ {
++ if (!(template_boot_code = malloc( MAX_RESERVED )))
++ die( "Out of memory" );
++ /* The template boot sector including reserved must not be > 65535 */
++ use_template = 1;
++ i = 0;
++ do
++ {
++ ch = getc(msgfile);
++ switch (ch)
++ {
++ case EOF:
++ break;
++
++ default:
++ template_boot_code[i++] = ch; /* Store character */
++ break;
++ }
++ }
++ while ( ch != EOF && i < MAX_RESERVED );
++ ch = getc(msgfile); /* find out if we're at EOF */
++
++ /* Fill up with zeros */
++ while( i < MAX_RESERVED )
++ template_boot_code[i++] = '\0';
++
++ if ( ch != EOF )
++ printf ("Warning: template too long; truncated after %d bytes\n", i);
++
++ if ( msgfile != stdin )
++ fclose(msgfile);
++ }
++ break;
++
+ case 'm': /* m : Set boot message */
+ if ( strcmp(optarg, "-") )
+ {
OpenPOWER on IntegriCloud