Click the "options" button and choose the desired partition type. If you plan on installing and booting OS X on the drive, or plan on using it for a Time Machine backup, then select Apple Partition ...
So I've just been messing around with my new macbook pro and decided to partition the drive for a fresh install. I figure I can eek out a little more performance by installing the OS on the partition ...
do any body have iMac 27" with proper EFI partition? If so can you share disk image of EFI partition? Back story for all who want to read. I have iMac 27" lae 2012. Some time after my Apple Care ended ...
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