a couple thoughts:
-maybe updating option in recovery doesn't check signature (I don't know why it shouldn't, but may be worth a try)
-root password could be the same as recovery password, have you tried that?
another one:
hitting ctrl+c during boot could drop you into a shell.
Last edited by giorgio130; 10-25-2011 at 03:07 PM.
Reason: adding an idea
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