The format used to define the hard disk partitions in computers with UEFI startup firmware. The GUID Partition Table (GPT) replaces the previous master boot record (MBR). GPT partitions can hold 18 ...

I've got a Mac laptop that I'm trying to triple-boot with Ubuntu (prior to this, I had Windows set up with Boot Camp). Following the instructions on various websites, I installed rEFI, and added two ...

I want to partition the card so I can use it for an OS install disk (Mac OS Extended GUID) in one partition and as a camera disk (MS-DOS FAT) in the other partition. Disk utility can do the partition, ...

Command-line enthusiasts know that if you can do something in the regular Mac interface, you can usually do it faster using Terminal. But as of Mac OS X 10.4.6, Terminal also lets you perform a feat ...