Unable to boot into the external bootable APFS volume

The internal drive contains HFS+ formatted bootable partitions with older macOSes (pre-High Sierra)
The external drive contains an APFS formatted bootable partition with Mojave installed

Issue: I can't switch to that APFS partition. Disk Utility does NOT recognize the structure of the external bootable APFS volume.

Help me, please.

Posted on Jul 9, 2020 6:55 PM

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1 reply

HWTech

Level 9

68,672 points

Jul 9, 2020 7:36 PM in response to scrutinizer82

Use rEFInd to provide you a menu of bootable operating systems when the computer restarts:

https://www.rodsbooks.com/refind/

Or you can just Option Boot and manually select the OS you want to boot from. To Option Boot just hold down the Option key just after powering on the computer.

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Unable to boot into the external bootable APFS volume

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