1465      iPhone_iPad_Mac_apple

Underallocation Detected on Main device

The upgrade to High Sierra didn’t go quite as I expected. After leaving the computer overnight (MBP, later 2013, 500GB SSD) and a day it got stuck on the Apple loading menu.

After a reset the computer kept hanging at about 90%. After smc reset, safe mode, and restore mode os reinstall as well as a disk First Aid, no luck.

fsck_apfs returns “Underallocation Detected on Main device”, attaching screenshot.

Is there any way this can be fixed please? No TimeMachine either. I can see Macintosh HD mounted in restore mode with around 80 GB free, can I somehow save the data/profile if there’s no other way than format the partitions?

最后更新：2017-09-29 04:56:23

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