hey everyone, my brother recently installed lion and, when he restarted his computer, was asked if he wanted to restore from a time machine backup or install lion. i don't understand why, because he already did. it won't let him install lion, as it asks for his keychain password but, when he enters it, it says wrong password. so i told him to restore from his time machine backup, but it just says "Searching for disks..." indefinitely. when he tries to install lion, it says his internal hard drive is locked. i'm wondering if there's a way to unlock it so that he can install lion. he doesn't have the cps that came with his computer because he's out of town. any help would be much appreciated.