Mac Book Pro purchased in November, 2012, running OSX 10.8.current (Mountain Lion).
I shut down all apps, and restarted the laptop.
After the reboot, I selected my account and provided my password. The laptop hung with the apple logo and the spinning gear for about two minutes.
I restarted again and logged in as Guest. No problems.
I restarted and tried my account again. The laptop has now been stuck on the spinning gear (not the beach ball) for 10 minutes.
My home directory is encrypted, but I don't get any messages saying the laptop can't access the filesystem.
(And, of course, I'd muted the speaker before I restarted, so I don't get the start up tone. I'm going to give this attempt a few more minutes before trying to boot into safe mode.)
This is a totally new type of problem for me. Does anyone have any hints on what to look at to see what might not be starting properly?
I couldn't manage to restart in Safe Mode (shift key). I did restart into Restore mode (Cmd-R) and was able to run Disk Utility. The disk itself passed all verify tests, the Encrypted LVM was inaccessible.
While in Restore mode, I picked Start-up Disk... from the Apple menu and provided the password for the encrypted LVM. That was accepted and the partition appeared.
After restarting, a test login is again hanging...