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Level 1

4 points

How to fix uninitialized HDD not wiping?

I have a 21.5” 2011 iMac desktop computer and recently it was slow so I decided to full wipe it. When I tried to reinstall MacOS High Sierra, it wouldn’t let me install fully. I went to Recovery mode and I see that my HDD was uninitialized, and there was no volume there. So I tried to wipe my HDD, and it gives me the error “Disk object invalid or unable to serialize”! Now I can’t reinstall MacOS High Sierra since I can’t wipe my HDD and that there is no volume.

iMac 21.5″, macOS 10.13

Posted on Jul 4, 2022 11:55 PM

Best reply

PRP_53

Level 10

84,967 points

Posted on Jul 5, 2022 8:03 AM

How to reinstall macOS

Follow these guidelines during installation:

If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.

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How to fix uninitialized HDD not wiping?

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