apfs_incompatible_features has unsupported flags

Hello! How can I fix this problem with Container disk2? When I trying performe First Aid I obtain this:

warning: apfs_sb at apfs_fs_index (4): apfs_features has unrecognized features (10)

error: apfs_sb at apfs_fs_index (4): apfs_incompatible_features has unsupported flags (0x20)

Volume superblock is invalid.

The volume /dev/disk0s2 could not be virefied completely.

Posted on Nov 27, 2020 3:43 PM

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Posted on Nov 27, 2020 3:57 PM

If First Aid is unable to repair the volume, then you need to make sure you have a good backup. Then erase the whole drive and either restore from a backup or clone.

https://support.apple.com/en-us/HT208496#erasedisk

6 replies

Nov 27, 2020 4:11 PM in response to AlvinSeville7cf

You need to select the physical drive instead of the container. It seems Apple has unfortunately changed the information in the previous link for Big Sur and dropped everything for the older versions of macOS. See this article instead:

https://support.apple.com/guide/disk-utility/erase-and-reformat-a-storage-device-dskutl14079/mac


You can boot from either Recovery Mode or from a bootable macOS USB installer to erase the drive as described in the new link I just provided.

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apfs_incompatible_features has unsupported flags

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