CVS commit: src/sbin/fsck_msdos

[Greg Troxel <gdt%netbsd.org@localhost>]

Module Name:    src
Committed By:   gdt
Date:           Mon Mar 19 18:30:40 UTC 2007

Modified Files:
        src/sbin/fsck_msdos: boot.c

Log Message:
Change mismatch of bytes 11 to 90 to be a warning, not an error, and
print out the values of the bytes that do not match.
Add comment explaining that there is no documented rationale for the
check.

fsck_msdos checks that several bytes are equal in the primary and
backup bootblock.  There is no documented rationale.  The kernel does
not enforce this when mounting a filesystem.  I have a FAT32
filesystem on my disk (mounted as /share) which fails this check, but
is accepted by both Windows XP and NetBSD.  My volume differs in bytes
71-81.  The primary contains "SHARE " and the backup NUL bytes.

Further, fsck_msdos does not have code to repair the mismatch.  As a
result such filesystems can be used not checked.


To generate a diff of this commit:
cvs rdiff -r1.12 -r1.13 src/sbin/fsck_msdos/boot.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.