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After Catalina upgrade, backup not working

I used Time Machine fine under Sierra. After Catalina upgrade, TM prepares endlessly, but doesn’t back up.

MacBook Pro 15″, macOS 10.15

Posted on Jul 26, 2021 10:29 AM

Reply
4 replies

Jul 27, 2021 8:03 AM in response to Pamela Veenstra

Pamela Veenstra Said:

"After Catalina upgrade, backup not working: I used Time Machine fine under Sierra. After Catalina upgrade, TM prepares endlessly, but doesn’t back up."


If it is repetitive...

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Reset SMC and your NVRAM Thrice:

USB port settings may need to be reset. Sometimes, changes (i.e. Update Installations) are made, and then settings (i.e. For USB Ports) become manipulated, technically. So, reset both. Note that this may take three tries just to reset them successfully. It may take some time to perform this. So, be certain you have the time to do so.

Use these Links:

After Catalina upgrade, backup not working

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