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I reinstalled my OS a couple of times and ended up with many redundant disks as you can see in the picture: enter image description here

I want to get rid of them.

Of course, I tried the following diskutil commands:

  • eraseDisk : the command only erases the content of the "disk" but not the disk itself.
  • mergePartitions : tried merging all redundant partitions into one but didn't work.

Note: I didn't use FileVault.

Any ideas?

James69
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1 Answers1

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Posted the same question on the Apple forum and got the following answer:

When you boot into Internet Recovery, the minimal system creates over 25 RAM-disks, of type disk-image, all modest in size, and uses them to hold temporary items. This leaves the boot drive completely free to be Repaired, Erased, or whatever needs to happen.

Trying to remove them will crash Recovery.

Those RAM-Disks are not permanent. Just restart into regular mode or Safe mode, and they will be gone.

Another answer with additional explanation:

In that report, your "real" disk is Disk0, size about 256GB, and it holds a GUID partition Map, an EFI partition, and a container-disk.

Synthesized inside the container-disk is disk2, which contains the components of your APFS drive.

Look closely at the SIZES of those items.

Since diskutil list is recomputed at every startup, when you start up without Internet recovery active, your APFS Volume will likely move to a different disk number.

James69
  • 67