VAXstation 3100/76 configured as VAXserver and NetBSD

9000 VAX vax9000 at
Sat Jan 13 18:36:28 CST 2007

On 1/13/07, Scott Quinn <compoobah at> wrote:
> I have a old VAXstation 3100/76 I'm playing around with (it's
> surprising how much faster the VAX 4000/200 "seems" - guess it's better
> memory and I/O bandwidth). The beastie is not-quite-complete (running
> it as a VAXserver, and the external SCSI connector has been replaced
> with a HD-50 that isn't functional- not sure if that's bad wiring or
> bad SCSI chip), but it does have a full 32MB RAM and all the tests it

The SCSI connector on 3100 76 is wired differently from the standard. I was
told that it was because there was no standard when the first vaxstation was
out. You need a DEC specific SCSI cable to use the port.

vax, 9000

fails are explainable (?? on the network (since it's not connected,
> that's expected), ? on the serial lines (no kb/mouse connected there)
> and the external SCSI (nothing connected and known issues).
> Anyway-to the question: Neither NetBSD 2.0 or 3.0 will install
> successfully. They both segfault, usually during install but once I got
> 3.0 installed and it was very limited functionality. Officially the
> 3176 is supported, but is NetBSD known to be tempermental? (I'm not
> sure if it's the VAX or the software - VMS boots fine, but if the
> system's wonky I won't bother with it anymore).
> Can't test NetBSD on my other VAX (4000-200), since SHAC isn't
> supported.

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