I booted off the NetBSD 1.0 install floppy(s) (upgrade will work also) and 
did these things...


(for my peace of mind, I backed up my hard drive in limp mode)
mount /dev/sd0a /mnt
mount /dev/sd0e /mnt/usr
cd /mnt
tar -cvpsf /dev/st0 . (thanks to whoever added tar to the diskette)
reboot (to clean everything up, just in case)


booted the NetBSD 1.0 floppy(s) again and...
cd /usr/mdec
disklabel -B -s bootsd /dev/sd0a
reboot

removed diskette, boot off hard drive and all is well!

hope this help some other soul some day!

(for those who ever need to do this some day, but have an IDE, substitute 
wd0a for sd0a)

jam