Would appreciate some pointers on installation!

System: HP360, HP7937 HP-IB Disks, 9144 Tape, Serial console. NB Installs 
and runs HP-UX 9.00 with no problems at all.

Boots SYS_INST from tape OK. Copies miniroot from (Linux) NFS server OK. 
Booting miniroot starts OK, then panics with "MMU fault", and a full 
register dump (I can log all the messages if that helps!).

Any suggestions as to where I should start? (I do HP-UX sysadmin for a 
living, and run Linux for fun, so I'm not a Un*x newbie, but I've not 
installed *BSD before)

Thanks,
Andrew