Missing Firmware Partition - Updating to Catalina

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Missing Firmware Partition - Updating to Catalina

Hello all,

I am currently running an MBP with macOS 10.11.6 (El Capitan) but am looking to update my software to the most recent Catalina. I have downloaded the Catalina update through the Mac App Store application, but I get the an error stating I can't update Catalina on my current Internal SSD because "...the computer is missing a firmware partition".

Does anyone know what the problem is or how I can fix this? I have attached screenshots from the Catalina updater as well as updates from Disk Utility.

Thank you!

MacBook Pro 15″, OS X 10.11

Posted on Jul 8, 2020 6:07 AM

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Answer 1

jeremy_v

Community Specialist

Jul 12, 2020 4:39 PM in response to CenBooke

Hey there CenBooke,

Thanks for reaching out to Apple Support Communities. We understand you’re having issues updating to macOS Catalina due to an issue with a firmware partition missing. We’ll be happy to help with this.

Boot into recovery mode on your Mac and run First Aid on Macintosh HD using the steps here:

Repair a storage device in Disk Utility on Mac

After that, try updating once more. If you get the same issue, try updating to macOS High Sierra:

How to upgrade to macOS High Sierra

If you still have issues, boot into safe mode and try updating to macOS High Sierra from there:

How to use safe mode on your Mac

If that works, then try updating to macOS Catalina from macOS High Sierra:

How to upgrade to macOS Catalina

We hope this helps.

Take care.

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Missing Firmware Partition - Updating to Catalina

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