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?

  • 1
    This looks like you are in recovery or install mode, or something like that. If that's the case, those are just part of how that mode functions. See "What is the 'Mac OS X Base System' disk image on my 2011 MacBook AIr?" Mar 14 at 2:48
  • It is the exact same problem. A little surprised Apple didn't address this issue since then as these disks cannot be deleted from what I understand of your thread...
    – James69
    Mar 14 at 14:43
  • 2
    I'm not sure why they'd be considered a problem that needs addressing; they're a bit confusing, but other than that they're just part of what allows recovery mode to function while taking up a minimum of actual disk space. Mar 14 at 16:52

1 Answer 1


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.

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