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path: root/recipes/dosfstools/files/mkdosfs
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, "-") )
{