The error Unrecognized partition found, index 1 disk layout validation failed occurs while converting MBR to GPT. This article lists the reasons and fixes for this error.
When you buy a new Mac laptop, iMac, or Mac mini, the internal startup hard drive is set up with one partition—that is, one large section of storage space. You can use Disk Utility to partition the ...
Reader Kevin Riley has a splitting dilemma. He writes: I have a 1TB FireWire hard drive that is about a quarter full. I’d like to partition the drive but don’t want to have to back up all my data to ...