Cannot install macOS on Mac mini after erasing disk

After erasing disk cannot install MacOS Tahoe 26.5. Mac mini m4. Apple account validate successfully.


Error:



In terminal diskutil show this



[Edited by Moderator]

Posted on May 21, 2026 6:00 PM

Reply
3 replies

May 21, 2026 9:28 PM in response to nullpwr

  1. Thank you, Moderator! (I wrote from iPhone when panicking)
  2. Did you know that Recovery Mode allows you to erase/delete disk from several locations?


The first location is Disk Utility (or Terminal). The second location is the pop-up window (when something goes wrong) (first screenshot).


And the third location is the menu in the upper left corner of Recovery Utility with the "Erase" option. I hadn't seen this third option before. It was the one that helped me completely erase the drive and start the installation. But you may see this option before running other utilities (if I'm not mistaken, I found this option immediately after or before accepting the license agreement).


Note 1: The third screenshot shows that partitions with unknown data remain on the drive. That's where the problems were.


Note 2: The best indicator (yes, I know this now) that there's a problem with your Mac Mini booting is the startup sound. If there's no sound, you have a problem.


Note 3: Look on the third screenshot with exit buttons. ```<= exit =>```. LOL


So, problem solved. 🙏


Cannot install macOS on Mac mini after erasing disk

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