Hi NetBSD Users.

I install my MacG3 machine NetBSD1.4.1.
But i'm do not boot my machine.
because i don't know OpenFirmware Setting.
yesterday i used LinuxPPC. OpenFirmware boot-device and boot-file set is 

boot-device         ide0/disk@0:Y (Y is the partition # of root)
boot-file           ide0/disk@0:Y/boot/vmlinux root=/dev/hdaY

How can i set OpenFirmware on NetBSD?
My OpenFirmware Version is 2.0

sorry poor english