Previous 1 2 Next 19 Replies Latest reply: Jan 3, 2013 10:40 AM by BDAqua
Mak128 Level 1 Level 1

I have a PowerMac G5 and it refuses to boot into Open Firmware. I used Command + Option + O + F and held down the Option key. I have tried 3 different Keyboards but no avail.

PowerMac, Mac OS X (10.4.11)
Reply by BDAqua on Dec 31, 2012 11:09 AM Helpful

Hmmm, does it boot in either of these modes?


Mac OS X: How to start up in single-user or verbose mode...

Reply by BDAqua on Dec 31, 2012 7:21 PM Helpful



Does it boot to Single User Mode, CMD+s keys at bootup, if so try...


/sbin/fsck -fy


Repeat until it shows no errors fixed.


(Space between fsck AND -fy important).


Resolve startup issues and perform disk maintenance with Disk Utility and fsck...


Does it boot from your Install Disc, or show boot choices  when holding alt at bootup?

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