Open Firmware - What does "set-defaults"?

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bookpower Author

Level 1

15 points

Open Firmware - What does "set-defaults"?

Hi

I had some trouble with my "new" PowerBook G4 12inch 1,33GHz after inserting an SSD resulting in freeze after wake up.

So I tried the "set-defaults" command in open firmware. 😟

This don't resolved the problem ** now all things seems to be slower.

I installed a fresh 10.4 but I could swear that it takes much longer.

What does this "set-defaults" comand in open firmware? Maybe I killed some of Apples factory optimization?

Can I restore these values? Are these defaults the factory defaults for this PB or firmware defaults? 😕

Next time I will ask before my experiments....

Thanks

bookpower

Posted on Feb 1, 2013 11:18 AM

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Answer 1

romko23

Level 2

408 points

Feb 2, 2013 11:13 PM in response to bookpower

"set-defaults" means to reset the machine back to factory settings. The following must be typed in open firmware:

reset-nvram - This sets up a factory reset of the NVRAM.

set-defaults - Sets the flag so that the defaults embedded in ROM can be returned back to factory default

reset-all - FACTORY reset complete.. and machine reboots.

There are briefly two commands afterward that open firmware throws out at you.. I think it says sharp0020 or something along those lines.. but know that once you type the 3 commands, your firmware resets back to factory defaults. Your preferences might reset themselves under OS X however.

Romko

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