My 2013 rMBP wouldn't boot, so I'm trying to fresh install. I made a bootable USB with a separate disk, and before install I'm trying to erase and partition my internal drive for the new OS. I get to the screen where I get to choose whether to install the OS or use Disk Utility. I choose Disk Utility. My hard drive is listed as "Apple SSD SD512E", not "Macintosh HD". So I select it, hit erase, and it's stuck on "Waiting for partitions to activate". This drive did have FileVault enabled. Anything I can try to fix this? Or am I likely looking at a dead drive?