Subject: Re: Sun3/E use
To: Ian Wells <>
From: Michael Thompson <>
List: port-sun3
Date: 10/18/1999 19:18:43
Peter Koch on Germany and I both have Sun3/E systems.

Take a look at

The newest operating systems that will run on it are SunOS
4.1.1_U1 and NetBSD 1.4.1. The DMA for the SCSI under NetBSD
has not been completed, but it otherwise runs just fine.

The spurious interrupts could be from not having the jumper settings
for IACK on the backplane set correctly.

Not enumerating the VME boards also sounds like a BGNT jumper
configuration problem.

How many slot backplane do you have and what boards are in what slots?

At 11:40 PM 10/18/99 +0100, you wrote:
>I have a Sun3/E-based system with a load of additional gubbins in.
>It's supposed to run SunOS 3.5, but I can't get that or SunOS 4.1.1 to
>install (I replaced the HDD since the old one seems to be faulty, so
>it now needs a reinstall.  I get loads of messages along the lines of
>'spurious level 2 interrupt'.  (While this is rather off-topic, if
>anyone can give me any clues what might be causing this I'd be
>So I thought I'd try NetBSD instead - somewhat annoying because the
>custom hardware has custom SunOS 3.5 device drivers, but anyway...
>I can get the first stage of the NetBSD install to work (from SCSI
>QIC), but then I run into problems because neither the QIC nor disk
>(also SCSI) are recognised.  (In fact, there are about seven devices
>enumerated on the VME bus, but none are identified, which was somewhat
>surprising - also in there is an SMD card and a Xylogics 1/2in tape
>driver card, both of which had device drivers, I thought.)  I guess
>this is because Sun3/E's have a different SCSI system to other Suns.
>Is there a kernel available anywhere with this built in that I can use
>for installation?
>And since NetBSD runs on Sun3/E's, I assume there must be one or two
>of you out there who have such systems.  I'd be interested in
>comparing notes.
Michael Thompson