Open Firmware

	Command	Description
Navigation
	list all devices (entire tree)	`dev / ls`
	list all aliases	`devalias`
	list directory contents	`dir hd:\`
		`dir /ht/pci@2/usb@b,1/disk@1:,\`
		`dir /ht/pci@3/firewire@e/node@/sbp-2@4020/disk@0:,\`
	eject optical disc	`eject cd`
Booting
	boot with default settings	`mac boot`
	boot from optical disc	`boot cd`
	boot from USB device	`boot ud`
	boot from specific path	`boot /ht/pci@2/usb@b,1/disk@1:,\install\yaboot`
NVRAM settings
	print settings	`printenv`
	change settings	`setenv boot-device mac-io/ata-4@1f000/@0:2,\System\Library\CoreServices\BootX`