Time Machine and Big Sur

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Level 1

35 points

Time Machine and Big Sur

I have a new MacMini M1, a MacBook Air M1 both on Big Sur, and an old 2011 MacBook Pro running High Sierra. The MacMini is connected by ethernet via my router to a Time Capsule formatted in APFS which I have in bridge mode for Time Machine. All 3 have been backing up to it. The Air and MBP connect via Wifi.

Now the MacMini doesn't see the 'Data' folder, previously mounted on the desktop, and won't back up. The other two devices are still backing up fine. The Time Capsule is visible in Finder, and the Data folder inside it, and it is also visible in Disk Utility. I have tried Select Disk > Data again in System Preferences > Time Machine, and it starts the 120 seconds countdown to back up, but then hangs on Preparing Backup.

Any ideas?

Mac mini 2018 or later

Posted on Apr 22, 2021 9:48 AM

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Answer 1

Martin Toal Author

Level 1

35 points

Apr 23, 2021 1:00 PM in response to MoonJ.

Thanks. Worked through that, ended up at erase and restart. So wiped Time Capsule and reselected it as the disk for Time Machine from my main connected Mac. Nows working through a little 700Gb backup!

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