I recently installed Mavericks on top of my ML installation. I didn't back (yes I know!) so I decided to reinstall ML on a separate partition, (Macintosh HD 2) and migrate all my stuff across from Mavericks. That was easy. I then deleted the Mavericks partition (which was Macintosh HD). Then I realised I couldn't extend the HD 2 partition upwards, so I was left with this empty space! After searching around I found out that I could clone my ML image on the second partition using disk utility (using the restore tab) and then once done I assume I can delete the HD2 partition and extend the top one down. DU is in the process of copying the image over. Is all what I've said going to work? I don't really want to have to reinstall everything.