So far as I know, DOS does not use a special table to mark bad sectors.  It uses a special entry in its FAT; for 16 bit FATs, hex FFF7 says the associated cluster contains at least one bad sector.  Erase the FAT, and you don't know where the bad sectors are.

Perhaps you need to implement a slow Linux format, or reformat the drives slowly on a Linux box.

Mike Halloran
Pembroke Pines, FL, USA

Hiya-

During the "typical" linux installation you can check for
bad sectors during the format of the drive.  I assume
that if you do the following:

I use Red Hat.  YMMV.  But I *DO* know that you have the
option for checking for bad sectors during the format
phase.

1. Try a "fresh" install of the linux with the typical
   partitions.  Doing it this way, you should be able
   to do the bad sector checking by checking the prompting.
   Partition the drive as you wish it to be for the
   target system.

2. Mount the drive as a second drive (i.e. /dev/hdb with
   the appropriate jumpers set for secondary drive, etc.)

3. Erase all of the files on the freshly formatted/
   installed drive.

This should leave you an ext3 filesystem format without
any data on it.  You can then transfer the oem software
to this "empty" drive.  Don't forget to load the boot
image on it!

4. Rejumper the "new" HD and install in the target system.

I'm *SURE* that there is a way to easily format the
HD drive, however, I can't give you a high degree of
certianty on HOW.  I usually find that sparing out the
bad sectors during installation is sufficient for my
needs.  Sorry this is a kludgy way of doing it, but it's
got a high degree of success.

Best of luck!

  Cheers,

   Rich S.

Thanks!

I found something at http://www.fix-hdd-bad-sectors.com Good luck I hope you will resolve your problem.

Maybe man badblocks would help.

If not, you might try posting this at www.tek-tips.com in the Linux forum.