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-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 0000000000..52be86284b
--- /dev/null
+++ b/meta/recipes-devtools/dosfstools/dosfstools/mkdosfs-bootcode.patch
@@ -0,0 +1,240 @@
1diff -urN dosfstools-2.10.orig/mkdosfs/ChangeLog dosfstools-2.10/mkdosfs/ChangeLog
2--- dosfstools-2.10.orig/mkdosfs/ChangeLog 1997-06-18 03:09:38.000000000 -0700
3+++ dosfstools-2.10/mkdosfs/ChangeLog 2004-08-02 20:57:57.734939816 -0700
4@@ -1,3 +1,14 @@
5+19th June 2003 Sam Bingner (sam@bingner.com)
6+
7+ Added option to read in bootcode from a file so that if you have
8+ for example Windows 2000 boot code, you can have it write that
9+ as the bootcode. This is a dump of the behinning of a partition
10+ generally 512 bytes, but can be up to reserved sectors*512 bytes.
11+ Also writes 0x80 as the BIOS drive number if we are formatting a
12+ hard drive, and sets the number of hidden sectors to be the
13+ number of sectors in one track. These were required so that DOS
14+ could boot using the bootcode.
15+
16 28th January 1995 H. Peter Anvin (hpa@yggdrasil.com)
17
18 Better algorithm to select cluster sizes on large filesystems.
19diff -urN dosfstools-2.10.orig/mkdosfs/mkdosfs.8 dosfstools-2.10/mkdosfs/mkdosfs.8
20--- dosfstools-2.10.orig/mkdosfs/mkdosfs.8 2003-05-15 11:28:28.000000000 -0700
21+++ dosfstools-2.10/mkdosfs/mkdosfs.8 2004-08-02 20:57:57.735939664 -0700
22@@ -40,6 +40,10 @@
23 .I message-file
24 ]
25 [
26+.B \-B
27+.I bootcode-file
28+]
29+[
30 .B \-n
31 .I volume-name
32 ]
33@@ -155,6 +159,18 @@
34 carriage return-line feed combinations, and tabs have been expanded.
35 If the filename is a hyphen (-), the text is taken from standard input.
36 .TP
37+.BI \-B " bootcode-file"
38+Uses boot machine code from file "file". On any thing other than FAT32,
39+this only writes the first 3 bytes, and 480 bytes from offset 3Eh. On
40+FAT32, this writes the first 3 bytes, 420 bytes from offset 5Ah to both
41+primary and backup boot sectors. Also writes all other reserved sectors
42+excluding the sectors following boot sectors (usually sector 2 and 7).
43+Does not require that the input file be as large as reserved_sectors*512.
44+To make a FAT32 partition bootable, you will need at least the first
45+13 sectors (6656 bytes). You can also specify a partition as the argument
46+to clone the boot code from that partition.
47+i.e mkdosfs -B /dev/sda1 /dev/sda1
48+.TP
49 .BI \-n " volume-name"
50 Sets the volume name (label) of the filesystem. The volume name can
51 be up to 11 characters long. The default is no label.
52@@ -188,8 +204,9 @@
53 simply will not support it ;)
54 .SH AUTHOR
55 Dave Hudson - <dave@humbug.demon.co.uk>; modified by Peter Anvin
56-<hpa@yggdrasil.com>. Fixes and additions by Roman Hodek
57-<Roman.Hodek@informatik.uni-erlangen.de> for Debian/GNU Linux.
58+<hpa@yggdrasil.com> and Sam Bingner <sam@bingner.com>. Fixes and
59+additions by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
60+for Debian/GNU Linux.
61 .SH ACKNOWLEDGEMENTS
62 .B mkdosfs
63 is based on code from
64diff -urN dosfstools-2.10.orig/mkdosfs/mkdosfs.c dosfstools-2.10/mkdosfs/mkdosfs.c
65--- dosfstools-2.10.orig/mkdosfs/mkdosfs.c 2003-06-14 13:07:08.000000000 -0700
66+++ dosfstools-2.10/mkdosfs/mkdosfs.c 2004-08-02 20:57:57.736939512 -0700
67@@ -24,6 +24,12 @@
68 - New options -A, -S, -C
69 - Support for filesystems > 2GB
70 - FAT32 support
71+
72+ Fixes/additions June 2003 by Sam Bingner
73+ <sam@bingner.com>:
74+ - Add -B option to read in bootcode from a file
75+ - Write BIOS drive number so that FS can properly boot
76+ - Set number of hidden sectors before boot code to be one track
77
78 Copying: Copyright 1993, 1994 David Hudson (dave@humbug.demon.co.uk)
79
80@@ -167,6 +173,8 @@
81 #define FAT_BAD 0x0ffffff7
82
83 #define MSDOS_EXT_SIGN 0x29 /* extended boot sector signature */
84+#define HD_DRIVE_NUMBER 0x80 /* Boot off first hard drive */
85+#define FD_DRIVE_NUMBER 0x00 /* Boot off first floppy drive */
86 #define MSDOS_FAT12_SIGN "FAT12 " /* FAT12 filesystem signature */
87 #define MSDOS_FAT16_SIGN "FAT16 " /* FAT16 filesystem signature */
88 #define MSDOS_FAT32_SIGN "FAT32 " /* FAT32 filesystem signature */
89@@ -188,6 +196,8 @@
90 #define BOOTCODE_SIZE 448
91 #define BOOTCODE_FAT32_SIZE 420
92
93+#define MAX_RESERVED 0xFFFF
94+
95 /* __attribute__ ((packed)) is used on all structures to make gcc ignore any
96 * alignments */
97
98@@ -215,7 +225,7 @@
99 __u16 fat_length; /* sectors/FAT */
100 __u16 secs_track; /* sectors per track */
101 __u16 heads; /* number of heads */
102- __u32 hidden; /* hidden sectors (unused) */
103+ __u32 hidden; /* hidden sectors (one track) */
104 __u32 total_sect; /* number of sectors (if sectors == 0) */
105 union {
106 struct {
107@@ -298,6 +308,8 @@
108
109 /* Global variables - the root of all evil :-) - see these and weep! */
110
111+static char *template_boot_code; /* Variable to store a full template boot sector in */
112+static int use_template = 0;
113 static char *program_name = "mkdosfs"; /* Name of the program */
114 static char *device_name = NULL; /* Name of the device on which to create the filesystem */
115 static int atari_format = 0; /* Use Atari variation of MS-DOS FS format */
116@@ -842,6 +854,12 @@
117 vi->volume_id[2] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
118 vi->volume_id[3] = (unsigned char) (volume_id >> 24);
119 }
120+ if (bs.media == 0xf8) {
121+ vi->drive_number = HD_DRIVE_NUMBER; /* Set bios drive number to 80h */
122+ }
123+ else {
124+ vi->drive_number = FD_DRIVE_NUMBER; /* Set bios drive number to 00h */
125+ }
126
127 if (!atari_format) {
128 memcpy(vi->volume_label, volume_name, 11);
129@@ -886,7 +904,7 @@
130 printf( "Using %d reserved sectors\n", reserved_sectors );
131 bs.fats = (char) nr_fats;
132 if (!atari_format || size_fat == 32)
133- bs.hidden = CT_LE_L(0);
134+ bs.hidden = bs.secs_track;
135 else
136 /* In Atari format, hidden is a 16 bit field */
137 memset( &bs.hidden, 0, 2 );
138@@ -1358,6 +1376,32 @@
139 * dir area on FAT12/16, and the first cluster on FAT32. */
140 writebuf( (char *) root_dir, size_root_dir, "root directory" );
141
142+ if (use_template == 1) {
143+ /* dupe template into reserved sectors */
144+ seekto( 0, "Start of partition" );
145+ if (size_fat == 32) {
146+ writebuf( template_boot_code, 3, "backup jmpBoot" );
147+ seekto( 0x5a, "sector 1 boot area" );
148+ writebuf( template_boot_code+0x5a, 420, "sector 1 boot area" );
149+ seekto( 512*2, "third sector" );
150+ if (backup_boot != 0) {
151+ writebuf( template_boot_code+512*2, backup_boot*sector_size - 512*2, "data to backup boot" );
152+ seekto( backup_boot*sector_size, "backup boot sector" );
153+ writebuf( template_boot_code, 3, "backup jmpBoot" );
154+ seekto( backup_boot*sector_size+0x5a, "backup boot sector boot area" );
155+ writebuf( template_boot_code+0x5a, 420, "backup boot sector boot area" );
156+ seekto( (backup_boot+2)*sector_size, "sector following backup code" );
157+ writebuf( template_boot_code+(backup_boot+2)*sector_size, (reserved_sectors-backup_boot-2)*512, "remaining data" );
158+ } else {
159+ writebuf( template_boot_code+512*2, (reserved_sectors-2)*512, "remaining data" );
160+ }
161+ } else {
162+ writebuf( template_boot_code, 3, "jmpBoot" );
163+ seekto( 0x3e, "sector 1 boot area" );
164+ writebuf( template_boot_code+0x3e, 448, "boot code" );
165+ }
166+ }
167+
168 if (info_sector) free( info_sector );
169 free (root_dir); /* Free up the root directory space from setup_tables */
170 free (fat); /* Free up the fat table space reserved during setup_tables */
171@@ -1371,7 +1415,7 @@
172 {
173 fatal_error("\
174 Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file] [-b backup-boot-sector]\n\
175- [-m boot-msg-file] [-n volume-name] [-i volume-id]\n\
176+ [-m boot-msg-file] [-n volume-name] [-i volume-id] [-B bootcode]\n\
177 [-s sectors-per-cluster] [-S logical-sector-size] [-f number-of-FATs]\n\
178 [-F fat-size] [-r root-dir-entries] [-R reserved-sectors]\n\
179 /dev/name [blocks]\n");
180@@ -1433,7 +1477,7 @@
181 printf ("%s " VERSION " (" VERSION_DATE ")\n",
182 program_name);
183
184- while ((c = getopt (argc, argv, "AcCf:F:Ii:l:m:n:r:R:s:S:v")) != EOF)
185+ while ((c = getopt (argc, argv, "AcCf:F:Ii:l:m:n:r:R:s:S:v:B:b")) != EOF)
186 /* Scan the command line for options */
187 switch (c)
188 {
189@@ -1494,6 +1538,51 @@
190 listfile = optarg;
191 break;
192
193+ case 'B': /* B : read in bootcode */
194+ if ( strcmp(optarg, "-") )
195+ {
196+ msgfile = fopen(optarg, "r");
197+ if ( !msgfile )
198+ perror(optarg);
199+ }
200+ else
201+ msgfile = stdin;
202+
203+ if ( msgfile )
204+ {
205+ if (!(template_boot_code = malloc( MAX_RESERVED )))
206+ die( "Out of memory" );
207+ /* The template boot sector including reserved must not be > 65535 */
208+ use_template = 1;
209+ i = 0;
210+ do
211+ {
212+ ch = getc(msgfile);
213+ switch (ch)
214+ {
215+ case EOF:
216+ break;
217+
218+ default:
219+ template_boot_code[i++] = ch; /* Store character */
220+ break;
221+ }
222+ }
223+ while ( ch != EOF && i < MAX_RESERVED );
224+ ch = getc(msgfile); /* find out if we're at EOF */
225+
226+ /* Fill up with zeros */
227+ while( i < MAX_RESERVED )
228+ template_boot_code[i++] = '\0';
229+
230+ if ( ch != EOF )
231+ printf ("Warning: template too long; truncated after %d bytes\n", i);
232+
233+ if ( msgfile != stdin )
234+ fclose(msgfile);
235+ }
236+ break;
237+
238 case 'm': /* m : Set boot message */
239 if ( strcmp(optarg, "-") )
240 {
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