Updated to Mavericks and now my external 1TB Seagate drive won't mount. Its icon ("Blorp") is greyed out in Disk Utility and all it says about the volume is that it is a "locked logical volume." This is not being used as a Time Machine backup drive, just an external drive. It won't even prompt for a password when I try to mount it. And it shouldn't be locked, since I turned off the encryption prior to upgrading the OS. This started when I opened up the computer and it said the drive was not ejected properly, even though it had been plugged in continuously. Can I get this drive back without reformatting it?
There is no fsck_hfs or similar process shown in Activity Monitor. I have run disk repair multiple times, and it always comes up ok: