If this happens every time you turn on your computer, reset the computer's parameter RAM (PRAM).
If the message still appears after you reset PRAM, reset the Open Firmware settings:
- Instead of typing "mac-boot" at the Open Firmware prompt, type: reset-nvram
- Press Return.
- At the Open Firmware prompt, type: reset-all
- Press Return.
Example:
0 > reset-nvram
Press Return
0 > reset-all
Press Return
The reset-all command should restart your Mac. If so, you have successfully reset the Open Firmware settings.