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I want to reinstall OS after Erase. MacOS Catalina window is showing a message "Select the disk you want to install macOS." There is nothing to select.

Hi. I have Mac mini with BigsSur OS originally Catalina. My Mac mini is the last year version right before M1 CPU.

After OS(BigSur) update, there was a login issue and I couldn't find solution so I decided to erase and reinstall OS. The window of Catalina shows "Select the disk you want to install macOS." There is nothing to select. I just stuck there again. And I tried to use Time Machine backup also but it is the same issue. No disk shows up, either. Any one can help me? Thank you.

Mac mini, macOS 11.2

Posted on Mar 19, 2021 3:50 PM

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Hi jesung,


Did you erase the Hard Drive?

If yes it should showed up there.

choose Mac OS Extended(Journaled)

Posted on Mar 23, 2021 5:11 PM

3 replies

I want to reinstall OS after Erase. MacOS Catalina window is showing a message "Select the disk you want to install macOS." There is nothing to select.

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