Note 2: If you want to boot a non-Macintosh partition, say for instance a PPC Linux distribution, then change tbxi for yaboot If it still doesn't work, you can try this command: boot ud:,\\:tbxi Note: You may have to change usb0 for usb1 depending on which port you plugged your USB stick in. Then at the Open Firmware command prompt, type this and press ENTER: boot make sure that there are 2 backslashes before :tbxi just in case this page contents gets screwed up in the future) Power the computer on (or restart it if it's already running) and immediately.ģ.hold down those 4 keys together: until you see the white Open Firmware screen similar to this:Ĥ.
Plug your USB stick or drive in an USB portĢ. To boot a PowerMac (or an iMac, iBook, eMac, etc.) from an USB stick or drive, if you have a G5 or late G4 model, first refer to the boot from CD guide and if it does not work, then follow these instructions:ġ.
