> From:	der Mouse <mouse@Collatz.McRCIM.McGill.EDU>
[ ... ]
> Notice the complete lack of any boot-time location of sd0.  No wonder
> it can't find sd0a (or sd0b).  There isn't even any scsi interface
> found.

This was the problem.  After a small cash outlay to purchase a scsi-3
controller (si), the system immediatedly booted into netbsd-1.1 without
any further complications.  Thanks to all who replied.  pk.