I had this issue once before and was helped, but I honestly can't remember how I was helped, and between Sevenforums, Eightforums, and Tenforums, I cannot find my old thread. So, with that in mind, here is the problem I'm having:
The 4TB drive (see the black, unallocated chunks) is showing one GPT protected partition (which cannot be deleted) and two RAW partitions which cannot seem to be consolidated. I need to make the entire drive one partition so it can be used as a backup drive for a hotswap bay. This came out of a Seagate external HDD enclosure, and the drive was originally formatted FAT32, and the enclosure utilized a PCB to make the entire drive accessible (probably for mac compatibility). Anyway... I don't remember how I converted the last drive, and really wish I had documented it. Help??