Sage-F98 Author

Level 1

4 points

SSD Missing firmware partition

Hi,

I'm trying to reinstall macOS Big Sur on an M1 MacBook Air stuck in recovery mode. I've refortmatted to SSD with Mac OS Extended (Journaled) and a GUID partition and used terminal to set up the Big Sur installer. Everytime I proceed to hook the drive into the Macbook stuck in recovery mode the message a message pops up informing me that my SSD is not properly partitioned. I've tried running first aid on the drive; nothing appears to be corrupted.

What am I doing wrong? Any help would be greatly appreciated.

Posted on Aug 15, 2022 7:33 AM

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4 replies

Level 10

101,437 points

Aug 15, 2022 8:50 AM in response to Sage-F98

How to reinstall macOS

And choose the Option for Apple Silicon Computers

First error was attempting to Format the Drive as HFS + (Journaled) / GUID

The drive requires to newer APFS / GUID format

You may also need to use this link below

Revive or restore a Mac with Apple silicon using Apple Configurator - Apple Support (CA)

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Level 10

101,437 points

Aug 16, 2022 7:04 AM in response to Sage-F98

You are welcome 😀 and thank you too 🇨🇦

Do come back to the Apple Support Communities ( ASC ) in the future, if / or when additional questions may arise

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Sage-F98 Author

Level 1

4 points

Aug 15, 2022 7:42 AM in response to Sage-F98

The exact message reads "You may not install to this volume because the computer is missing a firmware partition."

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Sage-F98 Author

Level 1

4 points

Aug 16, 2022 7:01 AM in response to Owl-53

Thank you, the revive tutorial worked. I was successfully able to reinstall MacOS on the macbook air.

Thank you so much for all of your help!!!

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SSD Missing firmware partition

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