[Fed-Talk] MacBook Pro Wierd Boot Behavior
[Fed-Talk] MacBook Pro Wierd Boot Behavior
- Subject: [Fed-Talk] MacBook Pro Wierd Boot Behavior
- From: "Andreoli, Tony A USNUNK NAVAIR B1490, R215" <email@hidden>
- Date: Tue, 17 Jan 2012 10:07:55 -0500
- Thread-topic: MacBook Pro Wierd Boot Behavior
Can someone explain this:
For reference, both machines I mention have EFI passwords and FileVault 2 encryption.
I have one MacBook Pro (15", 2011) that was acting up, so I pulled it's hard drive and stuck it in a 13" 2011 MacBook Pro to reformat. When done, I put the 13"'s original hard drive back in, but when it went to boot, all I got was the question mark folder. It wouldn't boot from a CD or the Lion thumbdrive. Finally, I booted with the Option key, which forced an EFI password prompt. I entered the password, which then brought me a prompt to unlock the hard drive. Once I entered the hard drive password, it booted just fine.
So, I can understand why it would want the hard drive password after swapping drives back and forth, but why did it only prompt for it after entering the EFI password? Why did it act like a bad drive, and give no indication that I needed to unlock the drive? Had I not booted with the Option key down, I may very well have tried to reformat the drive, thinking there was a drive issue.
Also, why would it not boot from either of the alternate medias? I tried C, cmd-opt-shift-del, and at the very least, I would expect if the internal hard drive came up with the question mark folder, it would fall back to any other bootable device it found.
Any thoughts?
Thanks,
Tony
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