I messed up the partitions on my MBP and now, trying to erase the entire hard drive and restore, when I click erase on the drive, disk utility says Could not unmount the disk even though the two partitions are greyed out on the side bar and can be unmounted manually by clicking unmount but then when i click erase again, i get the same error.
Help would be greatly appreciated!
Help would be greatly appreciated!
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