fdisk /cmbr will let you fix the master boot record on a drive other than the primary drive.
However, you didn't say whether C: & D: are 2 drives or 2 partitions on one drive.  If they are 2 separate drives, and one is a UDMA 66 drive, DOS & the GUI may give different drive letter assignments, or else they don't show up at all in DOS mode.  If they are 2 partitions, you might be best off to simply start from scratch and clear the disk with fdisk and start over.  Since your data is backed up, you don't have anything to worry about.

Glen Sagers

Bill Nussbaumer wrote:

> It's been quite a while since my last clean OS install and so I'm due.  I'm running into a strange issue.  I want to fdisk /mbr my drives, reformat and install Win98 clean.  In the past, at one time or another, I've used Boot Magic to help manage dual duty between Linux and Windows on BOTH my C: and D: drives.  Although all Linux partitions are long since deleted from this system and Boot Magic uninstalled, I'm not completely sure my master boot record is in order.
>
> When booting from a Win98 start up disk it seems that my C: drive becomes my D: drive and visa versa.  I further confirm this when looking at the partition information in fdisk after booting from the disk.  (I had planned on runing fdisk /mbr from the start up floppy).  However, the C: is correctly C: and D: is D: when in the Win98 GUI as well as when I run fdisk from the GUI's command line.
>
> I'm a little afriad I don't know enough about the master boot record to continue with my plan.  My data is backed up so I'm not concerned about data loss but I want to be sure I don't mess up the drives beyond repair.
>
> I'm pretty sure my drives are correctly set to Master / Slave but it seems both disks have active partitions (A in fdisk).
>
> Any comments, instructions or MBR explainations would be most welcome.
>
> TIA,
>
> Bill Nussbaumer
>
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               The NOSPIN Group Promotions is now offering
              Mandrake Linux or Red Hat Linux CD sets along
         with our NOSPIN Power Linux CD...  at a great price!!!
             http://freepctech.com/goodies/promotions.shtml