Does anyone else experience the backup issue on Big Sur? When backing up to my external drive, it always fails at the last 2 minutes, saying "Time Machine couldn't complete the backup."
I just updated to 11.2.2 and was hoping it could fix the issue, but nop.
iMac Line (2012 and Later)
Hello tarocai,
Thanks for posting in the Apple Support Communities forum. We understand you're unable to backup using Time Machine in Big Sur.
Although you have likely used the same external HD in the past, double-check the requirements and Backup disks you can use with Time Machine.
Another great link to review is If a Time Machine backup takes longer than you expect to see if you can complete the steps to troubleshoot, and complete the backup.
Last but not final, give this a whirl to make it past the stage it keeps getting stuck at:
If Time Machine remains in the “preparing” stage on Mac
Feel to share any snags that come about, and have a great week!
Time Machine failed to backup on Big Sur 11.2.2
