I have a Power Mac G4 with a dead optical drive. I'm attempting an upgrade to Leopard via Firewire target disk mode. During this process, Open Firmware starts up... Does anyone know the command for Open Firmware to allow me to boot the Leopard install disc via the target disk mode? I know the command for booting from the optical drive, but obviously that doesn't help as the drive is broken. Any help would be great. Thanks.