Why is my Time Machine backup missing after macOS Big Sur 11 update?

[rich_mark 1]

 

I have recently installed the new macOS Big Sur version 11 on my iMac. It took several hours to complete. Now the Time Machine has zero files in the backup. Did I do something wrong? Downgrading the macOS will help me to get back my Time Machine backup?

Any lead would be appreciated.

[pepitillo 11]

Hello,

I have tested today Time machine and macOS told me that the backups were made from another computer. Claiming the backups fixed the issue (there's a dialog that macOS promts).

IDK if is your case.

 

[Ethan Jarvis 2]

Did you check the size of your Time Machine disk? I think the backup might still be there.

[rich_mark 1]

On 12/17/2020 at 11:39 AM, Ethan Jarvis said:

Did you check the size of your Time Machine disk? I think the backup might still be there.

Thanks got it.