Bug#2077: mdir says "fat_read: Wrong FAT encoding?" on valid dos partition

["Mark W. Eichin" <eichin@cygnus.com>]

Package: mtools
Version: 2.0.7-12

With the following /etc/mtools.ref
A /dev/fd0 12 0 0 0
B /dev/fd1 12 0 0 0
C /dev/hda1 16 0 0 0
either with or without the additional line
#CHK_FAT=FALSE

I get:

# mdir c:
fat_read: Wrong FAT encoding?
Exit 1

The kernel handles the partition fine:
/dev/hda1 on /dos type msdos (rw,uid=3382)
Filesystem         1024-blocks  Used Available Capacity Mounted on
/dev/hda1             102600   49728    52872     48%   /dos

Fdisk says it's a 16 bit partition...
   Device Boot  Begin   Start     End  Blocks   Id  System
/dev/hda1           1       1     102  102784+   6  DOS 16-bit >=32M

and an old (non-debian 2.0.5+) version of mtools handles the disk
fine, as dos DOS itself (chkdsk and scandisk report no problems.)

I'll note that while the man page suggests a #CHK_FAT=FALSE option,
the strings appear nowhere in the executables, leading me to suspect
that it isn't actually recognized.

Release information: debian 0.93r6
uname -a: Linux depreciation 1.2.13 #2 Sat Dec 30 18:08:13 EST 1995 i486
	(problem occurred equally with the stock debian kernel.)
libc: libc.so.4.6.27

					_Mark_ <eichin@cygnus.com>
					Cygnus Support, Eastern USA