> I'm trying to install NetBSD-1.1 onto a diskless Sun 4/110.  Following the
> INSTALL notes, I get an "illegal instruction" error after loading the
> bootblocks, but before loading the kernel.

You must behead the first 32 bytes from the NetBSD boot.  The standard
guillotine is:

dd if=/usr/mdec/boot of=/boot bs=32 skip=1

> If I deviate slightly from the
> notes, and use SunOS-4.1 bootblocks instead of the supplied NetBSD
> bootblocks, I can get the kernel to load, and it walks through its device
> probe, only to die after
> 
> 	scsibus0 at sw0
> [pause]
> 	vmel0 at mainbus0
> 	vmes0 at mainbus0
> 
> At this point the machine panics with "text fault: pc=0 ser=80 <INVAL>".

What cards are installed?  In particular, what type of framebuffer
are you using?