When I tried booting into recovery mode (Cmd ⌘ + R) during boot up, there's a field asking for a password. I do not know this password.
I am using a late-2009 21.5" iMac.
Anyone know what to do?
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So, is there someone who set the firmware password on that machine? Ask them... Or you are the only user, and somehow did it yourself accidentally?– GEdgarJun 26, 2013 at 16:13
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I faintly remember doing it ages ago but I guess I forgot it. The password was definitely one of mine.– mokaJun 26, 2013 at 19:52
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2 Answers
From the image, it looks like a Firmware password.
This bash script may be able to decrypt your firmware password, however it only works on a limited set of computers.
python -c "print ''.join(chr(int(c, 16) ^ 170) for c in '`sudo nvram security-password`'.split('%')[1:])"
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Hey! Thanks very much for the help. I already decrypted the password and managed to get into recovery mode using the tutorial here: reviews.cnet.com/8301-13727_7-57521667-263/…. Thanks again!– mokaJun 26, 2013 at 17:56
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@moka No problem :D You do realise that was the same link that I put in my post ;)– grg ♦Jun 26, 2013 at 18:01
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Oh haha sorry, I didn't check the source link. Thanks again for the help. :)– mokaJun 26, 2013 at 19:52
If your mac is pre 2011 then removing a strip of ram and rebooting will clear the problem. I have done this with quite a few that I have installed new systems onto and it seems to work very well. Give it a try, what have you got to lose.
