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You are here: MacNN Forums > Software - Troubleshooting and Discussion > macOS > How 2 Disable OpenFirnware Password Protection

How 2 Disable OpenFirnware Password Protection
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TheZee
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May 12, 2006, 07:10 AM
 
Can anyone share any knowledge about how to disable Open Firnware Password Protection ??? I have it enabled but recently, the keyboard has been trippen making the letter "m" inoperable. my open firmware password as well as many of my other passwords have the letter "m" in them so you can guess how debilitating this is. I need to know if there is away to disable open firmware password protection using terminal or another application instead of the tradidtional way of restarting my iBook and booting into open firmware. I am fearful of not being able to get back into my iBook if the open firmware is still activated. I cannot type in the old password because it contains a letter "m." Please advise. Peace out . . .
TheZee
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NeXTLoop
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May 12, 2006, 08:30 AM
 
First off, download Open Firmware Password from Apple's support site. Or if you have a very recent model Mac, get it off the Install CD's that came with it. It should be in Applications/Utilities on the disk.

Once you run it you will have the option of changing the password to something without an "m" in it. After you've changed it, if you want to disable it completely, restart holding the "Command" + "Option" + "O" + "F" keys. At the text-based prompt, type "reset-nvram". You will be prompted for the new password you setup. Once entered, at the next prompt type "reset-all".

That should do the trick.
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pendragon
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May 12, 2006, 08:43 AM
 
Not exactly an answer to your question (more like a reply), but as a workaround...

Open Keyboard Viewer in System Preferences/International/Input menu and then you'll be able to click on the "M" instead of typing it.

FWIW, this technique worked for me when I tried to unlock other system preferences.

Hope it is helpful to you.
( Last edited by pendragon; May 12, 2006 at 09:17 AM. )
Harv
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Macpilot
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May 12, 2006, 10:37 AM
 
You can remove the RAM, then put it back in. This should bypass the open firmware password, but not sure if it does it temporarily or permanently.
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TheZee  (op)
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May 20, 2006, 12:11 AM
 
I went ahead and purchased a new keyboard. Thanks one and all for your advice and guidance.
Peace . . .
TheZee
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Detrius
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May 21, 2006, 10:41 PM
 
Originally Posted by Macpilot
You can remove the RAM, then put it back in. This should bypass the open firmware password, but not sure if it does it temporarily or permanently.

It's a little more complicated than that... but I'm not telling.
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TheZee  (op)
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May 23, 2006, 01:03 AM
 

Awe, come one my Mac brother. Do tell what you mean exactly. It would be comforting to have that type of information in my back pocket just in case a similar situation were to occurr in the future. Pretty please
TheZee
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Macpilot
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May 23, 2006, 01:57 AM
 
Then you need to boot into Open Firmware and type:
reset-nvram
set-defaults
reset-all

That should do the trick. You can then boot into single user, verbose, or from a CD/DVD.
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memory-minus
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May 23, 2006, 02:53 PM
 
Originally Posted by Detrius
It's a little more complicated than that... but I'm not telling.
LOL all high and mighty over something we learned in our ACHDS material, eh? Unbelievable.

1) Remove a stick of RAM, or, if you only have one stick, add one. Just change the amount of RAM in the machine either more or less.

2) Reset the PRAM by holding Apple-Option-P-R at the boot chime. Hold the keys until the computer chimes again. This will remove the OF password.
     
   
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