> Does the 1.4.2 alpha image in arch/macppc have uninorth support?

1.4.2 is much older than -current. (It's an incremental patch release
to 1.4, which was released in March or April or so.)

None of the people doing serious hacking on NetBSD/macppc have a
Sawtooth G4 right now, so no one has made it work yet. (Although it's
been pointed out that the right way to make it work is to use RTAS to
configure the PCI bus.)

-- Dan