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Are you running Lion? If not, you don't have a recovery partition.

I'm running whatever came on my MacBook Pro 2011.. Mac OS X i believe.

and so your telling me unless I have Lion I can't put a password on my firmware?
 
I'm not sure if this works, but you could copy the Terminal.app to your home folder, and then delete it from /Applications

However, if he is smart, he can just download iTerm(2) or some other terminal replacement for the mac, and keep messing around.

Bottom line: Locking the terminal application won't prevent anyone from accessing a command line on OSX.

Normally user accounts on Unix systems are very restricted. I'm surprised how he got around this before.
 
I'm not sure if this works, but you could copy the Terminal.app to your home folder, and then delete it from /Applications

However, if he is smart, he can just download iTerm(2) or some other terminal replacement for the mac, and keep messing around.

Bottom line: Locking the terminal application won't prevent anyone from accessing a command line on OSX.

Normally user accounts on Unix systems are very restricted. I'm surprised how he got around this before.

He used single-user mode. That's why I'm trying to get a password on my firmware.
 
I'm running whatever came on my MacBook Pro 2011.. Mac OS X i believe.

and so your telling me unless I have Lion I can't put a password on my firmware?

No, I am telling you that unless you can boot to an install DVD or a recovery partition, you can't set a firmware password (not completely true but I am not about to throw out terminal commands for this, and you have to encode the password properly).

To find out if you have Lion, click the Apple, then "About This Mac." If it says 10.7.x where x is whatever, you have Lion.

To boot to the recovery partition press command + R while booting you computer (before the Apple logo).

Like I said, it still works for me. Apple has been wrong in the past.

While I am not going to call you a liar, I am going to say that the body of evidence confirming this around the net, Apple's documentation and my own personal experiences make your experiences highly unlikely.
 
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