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Level 1

4 points

iMac installation of Big Sur

What to do if installation of Big Sur on iMac hangs at “less than a minute remaining?”

iMac 27″, macOS 10.13

Posted on Sep 24, 2021 9:39 AM

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Level 10

141,132 points

Posted on Sep 24, 2021 9:42 AM

It may be complete. Wait another 6-8 hours and if it does not complete, then force shut down the computer and then restart.

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Best reply

Level 10

141,132 points

It may be complete. Wait another 6-8 hours and if it does not complete, then force shut down the computer and then restart.

Level 1

4 points

Thank you. I restarted twice and the 2nd time it worked.

Level 10

141,132 points

Good to hear!

iMac installation of Big Sur

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