Booting from Internal Drives

The alias hd selects the internal drive of your computer.

Booting the system folder on an internal drive:

boot hd:,\\:tbxi

Booting from a file on an internal drive:

boot hd:\bootscript

Booting from a file on a specific partition with an internal drive:

boot hd:2,bootscript

Booting from External Drives

When booting from an external drive you need to determine what the device id is for the device you're trying to use. You can explore the device tree within Open Firmware by running the devalias command. The examples below are using the device id of a USB device.

Booting the system folder on an external drive:

boot usb0/disk:2,\\:tbxi

Booting from a file on an external drive:

boot usb0/disk:2,\bootscript

Opening the Boot Selector

After booting into Open Firmware, entering multi-boot will take you to the boot selector which is otherwise accessible by holding the option/alt key while booting.