Please help! To increase the size of Main, I have merged the Main(Encrypted APFS) with another APFS partition. But now it is showing the previous size and I am not able to use the added space. [See the size of Drive and Partition]. Thanks

/dev/disk0 (internal): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme 121.3 GB disk0 1: EFI EFI 314.6 MB disk0s1 2: Apple_HFS Rana 12.7 GB disk0s2 3: Apple_APFS Container disk1 12.7 GB disk0s3 4: Apple_APFS Container disk2 69.8 GB disk0s4

/dev/disk1 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +12.7 GB disk1 Physical Store disk0s3 1: APFS Volume Untitled 819.2 KB disk1s1

/dev/disk2 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +69.8 GB disk2 Physical Store disk0s4 1: APFS Volume Main 62.9 GB disk2s1 2: APFS Volume Preboot 43.4 MB disk2s2 3: APFS Volume Recovery 510.6 MB disk2s3 4: APFS Volume VM 1.1 GB disk2s4

  • 1
    Can you add at your question the result of the terminal command : diskutil list
    – user415185
    May 23, 2021 at 4:53
  • Yes, Sorry for my late response.
    – Rana
    Jun 21, 2021 at 7:14

1 Answer 1


For you, the best way is :

  1. create a clone of your system on external bootable disk. Carbon copy Cloner do it.
  2. boot with the clone.
  3. erase completely the internal disk with apfs structure.
  4. clone from external disk to internal.
  • Thanks Jean. I will try and let you know.
    – Rana
    Jun 22, 2021 at 4:32
  • I have copied all my files and ready to load OS. I have no space to download the Mojave from Appstore but need to create a Starter disk. How to do that?
    – Rana
    Jun 22, 2021 at 4:44
  • If you have done a clone with Carbon Copy Cloner (fully operational and free for one month during a trial period) you don't need download and reinstall Mac Os x. Con you, after boot on the clone, give me the result of diskutil list and I'll give you the right command to erase the internal disk.
    – user415185
    Jun 22, 2021 at 6:02

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