Skrevs ursprungligen av Rickard A
Prova detta:
http://docs.info.apple.com/article.html?artnum=106882
Open Firmware
1. Restart the computer. If necessary, use the reset/interrupt button.
2. Immediately after the system startup tone, press and hold the Command-Option-O-F key combination. The computer starts up to a text-only screen, indicating that you are in Open Firmware.
3. At the prompt, type: eject cd
4. Press Return.
5. Type: mac-boot
6. Press Return