OpenBSD on G4: Open Firmware question

["Schifferdecker, Udo" <udo.schifferdecker@vector-informatik.de>]

Hi there,

I am trying to install OpenBSD 2.8 on a G4 PowerPC.
Sadly I am totally unused to Open Firmware and I cannot figure out
how to tell my box to boot OpenBSD from the internal disk.

I do have a 1 MB DOS partition with the ofwboot created at installation
time.
I am using the rest of the disk completely for OpenBSD (no MacOS any more,
perhaps
that is my problem ?).

Does anybody know the Open Firmware commands I need to boot OpenBSD from my
IDE-disk?

TIA
Udo