hello. What firmware revision is running on the IPC? I seem to
remember anything older than 2.9 is problematic for newer versions of
NetBSD where newer means greater than 3.x or 4.x. If you don't have
access to a newer version of the firmware or a way to burn it onto a chip,
you could try booting a NetBSD 3.x cdrom and see if that works. If it
does, try running installboot against your hard disk and putting the 3.x
boot blocks onto your -current system. I'm not sure if this is as true for
Sparc as it is for I386, but I have some systems running 2.x boot blocks
booting 5.x kernels and later. (Of course, if 3.x won't boot, try 2.x and
run with that. This might get you going.)