[rescue] SPARCstation 1 boot woes

David McMackins II contact at mcmackins.org
Tue Oct 21 23:26:27 UTC 2025


Unless you consider Arkansas to be within range and want to swing by, I
don't think so. I appreciate the offer, though.

-- 
Regards,

David E. McMackins II
www.mcmackins.org

On Tue, 2025-10-21 at 19:15 -0400, Dave McGuire via rescue wrote:
> On 10/21/25 19:09, David McMackins II via rescue wrote:
> > It is with great dismay that I report that this netboot setup
> > exhibits
> > the same behavior as current NetBSD. It seems there is a subtle
> > hardware issue after all.
> > 
> > The only idea that I've come up with as a shot in the dark is that
> > it
> > could be a power supply issue of some sort. That is, during the
> > boot
> > sequence (or POST sequence on OBP 1.0), the power demand from the
> > system increases, and one of the PSU voltages drops below a
> > critical
> > threshold and causes malfunctions.
> > 
> > I don't have a spare SS1 power supply laying around, though, and
> > I'm
> > not really sure how I'd go about testing this hypothesis otherwise,
> > unless I could measure something very obviously wrong.
> 
>    Are you anywhere near Pittsburgh, PA?  We at LSSM can help you
> narrow 
> this down, but that'd pretty much have to be done in person.
> 
>               -Dave


More information about the rescue mailing list