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Reset open firmware on older Macs System
I learned the hard way that the resetting the Open Firmware on an older Mac -- my beige G3, for example -- requires a slight change in the initial command after a Command-Option-O-F startup. reset-nvram works on my G4 and is acknowledged by ok, but on my beige G3, it results in an unknown word response.

Thanks to a helper in one of the apple.com forums for older Macs, I learned to make my first command init-nvram. On the beige G3 as well as G4s, one starts the procedure by zapping PRAM and then quickly changing fingers from the P-R keys to the O-F keys, and holding until a prompt comes up. After typing the proper first command for your hardware, follow that up with set-defaults and then reset-all.
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macosxhints forum set me on right course
Authored by: Norm Nager on Dec 15, '03 04:44:09PM

It was a macosxhints.com forums contributor, Anthlover, who first suggested to me that another language might apply to open firmware with older computers in a very helpful thread that started with a question on my beige G3's refusal to boot a CD. I was a professor of communications for a quarter century, but I'm getting a fascinating post-career education from the exceptionally thoughtful contributors of hints and postings I've read in the forums and hints here at macosxhints.com Thanks very much! Respectfully, no-longer-"annonymous"- Norm Nager



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