news@udenva.cair.du.edu (netnews) (03/16/90)
taken from the Ontrack BBS:
Some of our users have notified us that our driven partitions cause an
Invalid Media Type error when MS4.01 CHKDSK.COM is used. An enhancement for
MS4.01 CHKDSK.COM has been devised. The enhancement is run under dos debug.
The fix should be only done on a backup copy of CHKDSK.COM. The
problem is that MS4.01 CHKDSK.COM is looking for a MS VDISK signature in
the BPB of the partition or vdisk. Our signature is NOSYSTEM and thus fails a
media check. The fix causes the results of this check to be ignored.
The fix is:
C>debug CHKDSK.COM <CR> /* .com is needed, here assuming C:
- ecs:37ce <CR> /* edit offset 37ce
/* It is VERY important that the value 74H
be the value which is edited. If another
value appears on the screen, DO NOT
PERFORM THE EDIT, exit by
entering a 'q' at the - prompt.
- eb <CR> /* replace 74H with EBH
- w <CR> /* write CHKDSK.COM back to disk
- q <CR> /* quit (back to DOS )
Now CHKDSK.COM should work on driven partitions.
Note: This enhancement will also fix chkdsk errors on Bernoulli boxes.
it works, i tried it...
tim
.