A4000/40 OS 3.1

The internal HD is 5G, partitioned into five 1G units. This setup has worked without problem for a year or so.

I tried an unfamiliar WHDLoad and it seems to have disabled the boot partition (ie HD0: is not a DOS Device).

If I boot from disk, all the partitions (and a couple of external drives) show up and operate normally. Of course I want to preserve as much as possible.

Any suggestions welcome.

I get this message trying to "save changes to drive" (partitions, etc.) using HDtoolbox. A4000/40, OS 3.1, Supra scsi controller w/ updated rom... and only on external drives. I haven't been able to find what this error message means. Thanks.