Chris Tribo wrote:

> ...        Yes, the root file system cannot be >1 GB on DECstations either
> (well if you want to boot from it). ..

Problem solved.
It was the IBM hd geometry (cyl/secs) unsuitable for NetBSD.
Tryed using a Conner CFS1080s (1080Mb), and everything went right.
Thanks everybody who helped me, now my ds5000/125 is up and running.