[rescue] howto make multiple main boards work on a Sun Sparc 670/MP
rescue at sunhelp.org
Fri Jun 15 10:44:22 CDT 2001
On June 15, Rob wrote:
> > You need to be running relatively new boot ROMs, though I don't
> >recall which version in particular...if you do a "printenv" at the
> >"ok" prompt and you see an option called "vme-loopback?" then you ROMs
> >are new enough. Set that option to "yes"...multiple boards can now
> >coexist in the same backplane. I've seen this done with up to four or
> >five 4/600 boards in a 690 chassis.
> *Kick*Ass*! Thanks!
> I got it working so far with 2 boards and a 670 chasis. For the record,
> 'skip-vme-loopback?' was the name of the option, but I was all ready
Oh, ok...brain parity failure...sorry 'bout that.
> So, the next big question is : where can I get more boards? And potentially,
> more ram? ebay seems like a reasonable start, but presumably the members of
> this list know where to get stuff cheap :)
They're around...Mike Nicewonger has a few, I have a few...we're
both local to you...
> Also, ideas for an os? Last I heard, linux didn't work on these things, but
> I've never gotten a clear answer why? I fancy myself kinda a kernel hacker,
> so I would love to get this thing penguin powered. I guess my other choices
> are netbsd/openbsd and sunos/solaris. For people out there who are running
> these things, what are you using? (Not trying to start/restart an OS flame
> war :)
Eh? No way. Unless they've *broken* support for the 4/600, Linux
sure does run on them. My main desktop machine about three years ago
was a 4/600 with two SM61s and two CG6s in a 4/110 chassis running
a very early SparcLinux/SMP. It was VERY zippy and quite stable,
But...for serious performance and much greater stability, I'd put
NetBSD on them.
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