FDISK

[cph@martigny.ai.mit.edu (Chris Hanson)]

   From: "Paul Khoury" <pkhoury@loop.com>
   Date: Sun, 28 Sep 97 12:07:56 

   Does anybody know what the FDISK /MBR command
   does, and if it works in OS/2 as well as DOS?

This command reinitializes the Master Boot Record of a disk.

The MBR is where the boot program for a disk is kept; if I remember
correctly, this is sector 0 on the disk.  The MBR boots up enough to
transfer control to either DOS or a partition boot record.

This command is used, for example, after doing a low-level format on a
hard disk, which wipes out the MBR.  Another time it comes in handy is
when you install LILO on the MBR and later want to switch back to the
original MBR (and have also lost the backup copy that LILO keeps for
you).

I've used FDISK /MBR on DOS, but I've never tried it on OS/2.  I don't
know if OS/2 will do this -- but I would guess that it does.