> I booted single and multiuser several times , and it hasn't hung again.
> The message is "... unexpected trap ..." that sometimes happens when

Is your Centris networked via the builtin Ether?  This unexpected trap
thing may be Ethernet interrupts, though I wouldn't bet more than 2c.

> Yeah, but if I can get a big enough miniroot, can't I NFS mount everything
> else over a 38.4 SLIP link?  This is just for fun, of course! :-)

I hear NFS over SLIP is torturously slow.  Sorry, but it doesn't sound
much like a fun (I know what you mean by "just for fun" ;-)

> As for the ethernet, if it is easier to get an Asante Nubus card working
> than the inbuilt ethernet, I will buy the card.

Last I heard, NetBSD had some trouble handling NuBus interrupts on
Centris and Quadras.  I hope that SONIC will have been supported by
the time interrupt handling on Centris/Quadras is resolved.

ken