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User profile for user: jacopo114
jacopo114 Author
User level: Level 1
8 points

Downgrade from macOS Big Sur

Hi,

I downgraded my Mac from macOS Big Sur to Catalina, but I can't restore my Time Machine backup with Migration Assistant because it doesn't see the backup disk. How can I move my data to the new system?

Thank you

Posted on Apr 10, 2022 9:14 AM

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User profile for user: PRP_53
PRP_53
User level: Level 10
90,967 points

Posted on Apr 11, 2022 4:54 AM

If the TM Backup Drive was used when the computer was running Big Sur - Big Sur may have changed the TM Backup to APFS versus the Catalina needed HFS Journaled format.


One will need to open Time Machine Backup and restore your data that way versus Migration method.

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Downgrade from macOS Big Sur

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