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Level 1

4 points

Cannot upgrade from Catalina to BigSur on MacBook Pro 2014

Twice it finished the upgrade with no errors. But the upgrade wasn't there, still on Catalina.

Any ideas?

Posted on Sep 14, 2021 9:54 AM

Top-ranking reply

Level 10

210,925 points

Posted on Sep 14, 2021 10:47 AM

Try the following:

1 - make sure you have a minimum of 30 GB of free space on your boot drive. More is better.

2 - go to the Applications folder and look for any "Install Big Sur" apps and delete them.

3 - boot into boot into Safe Mode by booting with the Shift key held down.

4 - install Big Sur from there.

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