I had a 2010 MacBook Pro with the latest version of OS X working perfectly fine this morning. I attempted to install the Mavericks update and it didn't work out. Now my drive apparently has some type of damage and I really can't do anything with it. I can't reinstall OS X from a CD, from the restore partition, from the net or anything. The drive is gone. I can't format it. I can't unmount it.... It's a good thing this was my "other" MBP. I'll be installing a new drive...
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