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APFS disks may not be used as bootable installed media

Newbie to BigSur

Newbie to BigSur

macrumors newbie
Original poster
Jul 19, 2021
1
0
I received this error when I created a bootable USB, after installing Big Sur 11.4.

I wanted to share the fix that worked by using the native tools.

Let's get started.

Make sure you download the OS installer from Apple store. It is already set to install on your HDD drive under /Applications folder.

Execute below using Disk Utility on the bootable USB drive.

> Click on Partition:
Scheme: GUID Partion Map
Format: Change from APFS to Mac OS Extended( Journaled )

> Click on Apply

Execute below on Terminal. I renamed MyVolume to BigSurBootable

sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/BigSurBootable
 
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