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RLRL

macrumors member
Original poster
Jan 31, 2015
70
6
I have a 1.11 TB fusion drive. I wanted to partition it to install a 2nd Mac OS High Sierra on it dividing the Fusion Drive in half (at least the HD portion).

When I used disk utility to do this app froze, and I lost 1/2 of the drive, the new partition did not show up and the storage was lost.

I had to Command-R restore to erase the drive, and Time Machine to restore the drive back to 1.1 TB.

I do not want to do this again. It took hours for the Time Machine to restore EL Capitan.

What did I do wrong? This should be something simple, however, it seems lot's of folks have problems doing this with fusion drives.

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