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On my MacBook was preinstalled Mojave 10.14.5, I did a backup on WD external hard drive (file system MacOS journaled) and then upgraded to Catalina 10.15.5. Now my Time Machine just won't do any backup: first attempt ended with a stop, the second hadn't even started. Should I change my file system to APFS and what to do with Mojave backup if I may decide to downgrade back to 10.14.5?
MacBook Air 13″, macOS 10.15
Hello kiirequeen,
Thanks for using Apple Support Communities! So you're having issues with backing up to Time Machine; let's look into this more.
With regard to the Time Machine drive formatting, you actually have the drive formatted correct, this article explains more:
Types of disks you can use with Time Machine on Mac - Apple Support
This article can help with the issues you're having:
If you can't back up or restore your Mac using Time Machine - Apple Support
Hope this helps.
Best Regards.
Hello kiirequeen,
Thanks for using Apple Support Communities! So you're having issues with backing up to Time Machine; let's look into this more.
With regard to the Time Machine drive formatting, you actually have the drive formatted correct, this article explains more:
Types of disks you can use with Time Machine on Mac - Apple Support
This article can help with the issues you're having:
If you can't back up or restore your Mac using Time Machine - Apple Support
Hope this helps.
Best Regards.
Time Machine Catalina issues
