I'm in the process of selling my mac mini. I went to the disk utility and erased per the instructions here: http://support.apple.com/en-us/HT201065 The only thing I did differently was I adjusted the security settings to do a pass of writing zeroes. Then I went to reinstall OS X per the instructions and there was no drive available on the "select the disk where you want to install os x" screen. I tried to do a restore from backup and got the same symptom - no disk to restore to. Also doesn't show when I go to choose a startup disk. I went back to the Disk Utility and noticed some weirdness: - The Macintosh HD logical volume is showing in the upper left, but there's no physical disk showing as its parent! See attached screenshot - I can repair and verify the logical volume without any problems. It also says that the volume is online and has 1.1 TB as it should. I've also tried resetting the NVRAM and PRAM, with no luck Any help is much appreciated!!!