1 Sep
2011
1 Sep
'11
9:29 p.m.
First, a belated thanks to the many people who helped me out finding
SunOS 4.1.1 images for my Sun3. I now have a CD image that contains
both Sun3 and Sun4 binaries, as well as a set of QIC boot tapes for same.
Unfortunately, I haven't had a lot of luck getting either to boot on my
machine. What I'm getting when attempting to boot from either CD or Tape:
Boot: st(0,0,0)
Error (PSR = 0x203) Timeout Bus Error:
Vaddr: 02000000, Paddr 00000000, Write, FC 5, Size 2 at 0xFEFE0926
When booting from CD, the drive spins up and the access light flickers a
bit for a fraction of a second before the above diagnostic is spit out,
for tape, the tape is accessed for 15-20 seconds before the error pops
up. I'm unsure what this diagnostic message indicates.
What I've got set up here is kind of a mishmash of parts -- the chassis
is a Sun 3/150 (6-slot VME) and what I'm attempting to run in it is
configured as follows:
Slot 0: Sun 3/4xx CPU (501-1550) with mono (bwtwo) framebuffer in the P4
slot.
Slot 1: 32MB memory (501-1451)
Slot 2: Sun3 SCSI (501-1217)
I've verified that the jumpers on the backplane are configured correctly
(via the guide here:
http://www.bitsavers.org/pdf/sun/sun3/813-2038-05_Sun-3_150_Card_Assignment…).
I've also ensured that the SCSI chain is properly terminated (at the
moment I only have a tape drive or CD drive connected.) The CD drive is
jumpered for 512-byte blocks, the tape drive is just a plain old QIC-150
which I've used with Sun machines before.
The machine passes all diagnostics and -seems- to be running fine, I
just can't get it to boot anything. I have not yet tried netbooting (I
don't currently have a *nix machine set up to do the job). I also have
a spare 3/4xx CPU and spare 32mb board -- I get exactly the same results
with those installed.
I do have a Sun 3/150 CPU board, and if I install that I can get it to
boot from tape (it's too old to attempt a CD boot) but I don't have any
memory for it other than the 4mb onboard, which is pretty tight. I'd
love to get the 3/400 cpu running -- anyone have any suggestions?
Thanks as always,
Josh