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User profile for user: kaan22
kaan22 Author
User level: Level 2
168 points

Disk Utility stuck

So, I was trying to reinstall Catalina on my 2017 13” MBP. I cleared my Macintosh HD -Data volume, and installed macOS on it. After the installation was complete, I got an error saying that the original Macintosh HD drive was locked, and that it couldn’t be accessed. So I decided to open up disk utility, and run First Aid on the Macintosh HD drive. Low and behold, the First Aid “unlocking disk” process has been stuck for about 30 minutes. I don’t want to power off/ reset my machine, as I don’t want to cause any damage. Any suggestions?


(also, I have a Macintosh-Data-Data volume now, how do I get rid of that?

MacBook

Posted on Apr 5, 2020 8:41 PM

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User profile for user: Kappy
Kappy
User level: Level 10
361,855 points

Posted on Apr 5, 2020 8:54 PM

You cannot restore Catalina that way. You need to do the following:


Install El Capitan or Later from Scratch


If possible, back up your files.


  1. Restart the computer. Immediately, at or before the chime, hold down the Command and R keys until the Apple logo and progress bar appear. Wait until the Utility Menu appears.
  2. Select Disk Utility from the Utility Menu and click on the Continue button.
  3. When Disk Utility loads select the target drive (out-dented entry w/type and size info) from the Device list.
  4. Click on the Erase button in Disk Utility's toolbar. A panel will drop down.
  5. Set the partition scheme to GUID.
  6. Set the Format type to APFS (SSDs only) or Mac OS Extended (Journaled.)
  7. Click on the Apply button, then wait for the Done button to activate and click on it.
  8. Quit Disk Utility and return to the Utility Menu.
  9. Select Install OS X and click on the Continue button.


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User profile for user: Kappy
Kappy
User level: Level 10
361,855 points

Apr 5, 2020 8:54 PM in response to kaan22

You cannot restore Catalina that way. You need to do the following:


Install El Capitan or Later from Scratch


If possible, back up your files.


  1. Restart the computer. Immediately, at or before the chime, hold down the Command and R keys until the Apple logo and progress bar appear. Wait until the Utility Menu appears.
  2. Select Disk Utility from the Utility Menu and click on the Continue button.
  3. When Disk Utility loads select the target drive (out-dented entry w/type and size info) from the Device list.
  4. Click on the Erase button in Disk Utility's toolbar. A panel will drop down.
  5. Set the partition scheme to GUID.
  6. Set the Format type to APFS (SSDs only) or Mac OS Extended (Journaled.)
  7. Click on the Apply button, then wait for the Done button to activate and click on it.
  8. Quit Disk Utility and return to the Utility Menu.
  9. Select Install OS X and click on the Continue button.


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Disk Utility stuck

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