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Mac mini M1 macOS update 12.1 restart fail

I have Mac mini M1, downloaded MacOS 12.1 update. On restart obtained a login screen. Logged in, no sign of installation activity. Repeat, same.

Please advise

Mac mini, macOS 12.0

Posted on Dec 15, 2021 3:49 PM

Best reply

Level 3

713 points

Posted on Dec 16, 2021 4:34 AM

See this for way to get a new install:

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4 replies

Best reply

Level 3

713 points

See this for way to get a new install:

Thank you for that.

However, I did get the system to load and behave after I shut the mini down and pulled the power plug for 30 seconds. Plug in, restart, normal boot.

Then clicked the restart in the Software Update panel, entered the password in the popup and proceeded through a normal install of 12.1

Case closed...

Possibly you have corrupt installation of MacOS 12.1. Suggest you reinstall it.

You are welcome.

Mac mini M1 macOS update 12.1 restart fail