I've installed OpenBSD/macppc twice on my G4 Cube now and it seems to be working fine until I go to untar src.tar.gz at which point it throws some abort trap errors and crashes. If I reboot, I get a bunch of abort traps during the boot process followed by several:
init: can't exec getty '/usr/libexec/getty' for pot /dev/ttyC3: ... What do you guys think this is...? Hard drive failure...?