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When I try to install macOS big Sur and click on the hard drive I get an error volume not formatted for apfs

Mac mini, macOS 10.14

Posted on Dec 4, 2021 8:03 AM

Top-ranking reply

PRP_53

Level 10

90,997 points

Posted on Dec 4, 2021 8:13 AM

Is this computer running High Sierra as this is where the posting of you question is posted ??

Or this computer running Mojave as per user profile using a Mac Mini.

If Mojave exactly what version of Mojave ? Some time around Mojave 10.14.3 or 10.14.4 the Mojave update would Convert the Old HFS Journaled drive to the new APFS Format.

If this was not done - that might be the Source of the Error Message one has received.

If this is the case Follow this link to posting by @ leroydouglas for converting HFS Journaled to APFS format.

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When I try to install macOS big Sur and click on the hard drive I get an error volume not formatted for apfs

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