SCO

To keep everything the same for recovery you might consider buying a replacement IDE drive of like specs and reload the OS onto the new drive. That would allow you to create a new boot/root set of floppies that would work with your old hard drive.

Although it indicates a hard drive error with a bad sector the major problem may be dump files and error logs written to the extent that the hard drive has run out of space. A good boot/root might allow you to attach the bad hard drive and remove the error files and make it bootable again.

Not to say you don't need to replace the hard drive but I would consider that a level 2 priority for the moment.

And a duplicate machine for use in a hardware crash is always a good idea. Preferable with fully duplicate hardware.

Thanks!