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The kernel now accepts BPB with heads > 255, so don't limit the number 

of drive heads.
This commit is contained in:
jmcneill 2008-12-26 04:23:17 +00:00
parent 4fcf0eb13c
commit a2f8108745
1 changed files with 4 additions and 5 deletions
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9
sbin/newfs_msdos/newfs_msdos.c
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@ -1,4 +1,4 @@
/* $NetBSD: newfs_msdos.c,v 1.27 2008/08/11 10:56:54 christos Exp $ */
/* $NetBSD: newfs_msdos.c,v 1.28 2008/12/26 04:23:17 jmcneill Exp $ */
/*
* Copyright (c) 1998 Robert Nordier
@ -33,7 +33,7 @@
static const char rcsid[] =
"$FreeBSD: src/sbin/newfs_msdos/newfs_msdos.c,v 1.15 2000/10/10 01:49:37 wollman Exp $";
#else
__RCSID("$NetBSD: newfs_msdos.c,v 1.27 2008/08/11 10:56:54 christos Exp $");
__RCSID("$NetBSD: newfs_msdos.c,v 1.28 2008/12/26 04:23:17 jmcneill Exp $");
#endif
#endif /* not lint */
@ -786,15 +786,14 @@ getbpbinfo(int fd, const char *fname, const char *dtype, int oflag,
if (!bpb->bps)
bpb->bps = ckgeom(fname, geo.dg_secsize, "bytes/sector");
if (geo.dg_nsectors > 63 || geo.dg_ntracks > 255) {
if (geo.dg_nsectors > 63) {
/*
* The kernel doesn't accept BPB with spt > 63 or hds > 255.
* The kernel doesn't accept BPB with spt > 63.
* (see sys/fs/msdosfs/msdosfs_vfsops.c:msdosfs_mountfs())
* If values taken from disklabel don't match these
* restrictions, use popular BIOS default values instead.
*/
geo.dg_nsectors = 63;
geo.dg_ntracks = 255;
}
if (!bpb->spt)
bpb->spt = ckgeom(fname, geo.dg_nsectors, "sectors/track");