9 Mar
2016
9 Mar
'16
12:38 p.m.
On Wed, 09 Mar 2016 20:29:56 +0100, Robert Jarratt
<robert.jarratt at ntlworld.com> wrote:
You could run the 3200 by netbooting it from a SIMH
instance of VMS. If
the RD54 was formatted (and working!) then you could transfer VMS onto
the disk from the boot node.
G'day Rob, thanks for the quick reply.
I've contemplated the SIMH/netboot option (was made aware of it a while
ago), but I'm not even sure the 3200 can netboot; at least it does have a
DELQA, so correct me if I'm wrong. In any case, I'd have to set up DECnet
under Linux first.
To format the RD54 you would need to find a 2000
though, or at least
borrow one. You should tell the list where you live as there might be
someone close by who could help out.
The VS is located in Germany, but I'm currently working in Switzerland and
won't get at the thing until my next vacation, probably sometime after
Easter.
I know that Bernd Ulmann (alias VAXMAN!) has a VS2000 and is --more or
less-- close by, but I haven't managed to schedule a visit (yet).
It might be though that the RD54 is formatted, worth
trying once you
netboot.
I checked out the RD54 on an old ST506/412 controller a few years back,
and it did seek. Of course I couldn't read the format, so I can't tell
what's on it. It definitely doesn't boot on the VS. Any other way to check
for a format from the console?
As for the KA675, I don't know really, I suspect
you would be into
surface mount work, but with two boards you might be able to swap bits
around to get a working board. Perhaps if you got a KFQSA or a KZQSA you
could get this to work?
Yep, it's SMT, but replacing a 22 pin DIP shouldn't be a big deal with the
right tools and a bit of practice. But the console diags don't indicate
the faulty chip! :^(
The 4000 does have a KZQSA, and it boots from CD -- until it bails out
with the async write error, which I assume has to do with the failed
B-cache.
Thanks for the hints,
--GT
--
"END OF LINE" [MCP, 1982]
"... nowhere in the standards is it specified that 'programs that use a
lot of memory may randomly crash at any time for no apparent reason'"
[Stackoverflow forum, 2012]