after update macOs to 12.7.5 I always get Time Machine error: an error occurred while preparing the backup.

On 21/05/24 I updated macOs to 12.7.5. Since then Time Machine does not backup anymore, the latest backup is 20/05/24 on the backup disk and 15/05/25 on Time Capsule.

I have a Time Capsule (2T with 1,03T available) and a backup disk (2T with 1,16T available) , with both it starts finding changes.

On Time Capsule after 128.766 changes detected it stops and starts cleaning up.

On backup disk after 97.000 changes detected it stops and starts cleaning up.


I hade the same results starting on "safe mode".


How should proceed to resume correct backup?

Thank you

MacBook Pro 15″, macOS 10.15

Posted on Jun 7, 2024 2:52 AM

Reply
7 replies

Jun 12, 2024 12:24 PM in response to ma_tau

No, I don't think that is needed.


This a tough one to figure out, but...


To find out if it's system wide or user specific, try this...


Open System Preferences>Users & Groups, unlock the lock, click on the little plus icon, make a new admin account, log out & into the new account.


Does it work in the new account?

after update macOs to 12.7.5 I always get Time Machine error: an error occurred while preparing the backup.

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