> Sounds like it can't read init over NFS.  Considering the state of the
> 1.5.x kernels, I'd recommend trying -current first, and if that doesn't

I've been using current (on several i386 boxes), so yes, I tried it
first. But I got following error messages and I could not boot at all.
---
pmap_bootstrap: could not claim physical dseg extention at 174a0000 size 360000
Setting DTLB entry 00000000 01000000 data e0000000 17800074
Setting DTLB entry 00000000 01800000 data e0000000 16c00076
Setting ITLB entry 00000000 01000000 data e0000000 17800074
---
So, I planed to boot up with 1.5.2 kernel and upgrade to current.

> work try booting a kernel with an embedded ramdisk and see if you can
> mount and access those directories over NFS.

Okay, I'll try much more.:)
If you hit upon any hint, I'd appreciate to hear that.

Thanks.
--
Hitoshi
p.s. I'd really like to hear someone says "X works with NetBSD/sparc64
on Ultra5/10", when I go to a next stage.:)