Sun-2/100U The Next Chapter

From: Karl Maftoum <karlm_at_blitzen.canberra.edu.au>
Date: Tue Aug 4 07:55:15 1998

Hi again,

Thanks for all the help with getting the thing booted, I managed to get
the miniroot installed on xy0 (an aging Fujitsu M2322K on a Xylogics
450(451?) controller), and it boots quite happily off the miniroot into
single user mode, the SunOS install program is quite advanced for 1986,
and very easy to use! Just select the packages and put the tapes in when
asked.

Along the way i've noticed that one of my memory cards seems to be faulty,
it currently has 7mb of ram (4mb + 1mb + 1mb +1mb), after numerous
"Protection Bus Faults" I removed all but the 4mb card, and all is fine, i
was able to up it to 6 and isolate the faulty card. I'll probably end up
replacing most of the 4164 chips on that board, i think I have a box full
of them somewhere :)

The only problem I seem to be having is that, the first time I installed
SunOS, when it goes to boot multiuser, it stops at "Using 100 buffers
containing xxxxx bytes of memory" then appears to write continously to the
HDD, (I verified this by clicking the WP switch on, and it dumped errors
everywhere). it's not the rc files, i'll have a go at reinstalling SunOS
again and see.

There appears to be another problem, I don't have the manufacturers bad
block data for the drive, and as such when i reformatted the drive it has
no bad block info.... Now I did try "scan" in the diags to rebuild the bad
block table, at which point it filled the bad block table and declared the
drive unusable. I am slightly dubious of this, as the format/verify then
failed where it had worked previously. Resetting the drive returned things
to a sane state, and the format/verify completed correctly... any ideas?

On the up side, the Tapemaster 1/2" tape and the ethernet interface is
working, when it does finally work it'll be plugged into the university
LAN....should make an interesting curiosity :)

Cheers
Karl







------------------------------------------------------------------------------

Karl Maftoum
Computer Engineering student at the University of Canberra, Australia

Email: k.maftoum_at_student.canberra.edu.au
Received on Tue Aug 04 1998 - 07:55:15 BST

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