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The newfs_msdos utility does not store the boot signature in the

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correct place on large sector disks.  The boot signature should be at
offset 0x1fe in the BPB; newfs_msdos currently stores it 2 bytes from
the end of the sector.

Taken from:	NetBSD
This commit is contained in:
Tom Rhodes 2007-05-31 20:06:46 +00:00
parent 1ecf009e5c
commit 93c26a8293
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=170166
1 changed files with 6 additions and 6 deletions
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12
sbin/newfs_msdos/newfs_msdos.c
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@ -54,7 +54,7 @@ static const char rcsid[] =
#define NPB 2 /* nibbles per byte */
#define DOSMAGIC 0xaa55 /* DOS magic number */
#define MINBPS 128 /* minimum bytes per sector */
#define MINBPS 512 /* minimum bytes per sector */
#define MAXSPC 128 /* maximum sectors per cluster */
#define MAXNFT 16 /* maximum number of FATs */
#define DEFBLK 4096 /* default block size */
@ -623,17 +623,17 @@ main(int argc, char *argv[])
setstr(bs->oem, opt_O ? opt_O : "BSD 4.4",
sizeof(bs->oem));
memcpy(img + x1, bootcode, sizeof(bootcode));
mk2(img + bpb.bps - 2, DOSMAGIC);
mk2(img + MINBPS - 2, DOSMAGIC);
}
} else if (fat == 32 && bpb.infs != MAXU16 &&
(lsn == bpb.infs ||
(bpb.bkbs != MAXU16 &&
lsn == bpb.bkbs + bpb.infs))) {
mk4(img, 0x41615252);
mk4(img + bpb.bps - 28, 0x61417272);
mk4(img + bpb.bps - 24, 0xffffffff);
mk4(img + bpb.bps - 20, bpb.rdcl);
mk2(img + bpb.bps - 2, DOSMAGIC);
mk4(img + MINBPS - 28, 0x61417272);
mk4(img + MINBPS - 24, 0xffffffff);
mk4(img + MINBPS - 20, bpb.rdcl);
mk2(img + MINBPS - 2, DOSMAGIC);
} else if (lsn >= bpb.res && lsn < dir &&
!((lsn - bpb.res) %
(bpb.spf ? bpb.spf : bpb.bspf))) {