Extra partition

Discussion in 'OS X El Capitan (10.11)' started by SDAVE, Nov 26, 2015.

  1. SDAVE macrumors 68040

    SDAVE

    Joined:
    Jun 16, 2007
    Location:
    Nowhere
  2. Evren Carven macrumors regular

    Evren Carven

    Joined:
    Dec 16, 2014
    #2
    The 'EFI' and 'Recovery HD' are system partitions. You'd better not do any thing operation to these partitions. For your question, do you mean why there are two 'Macintosh HD' partitions? If so, you may check your partition structure with Disk Utility.
     
  3. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #3
    When you have either FileVault or core storage enabled you see those two Macintosh HD partitions at the top, and that is normal. But I don't know what is up with that third, greyed out Macintosh HD you have selected.

    Run the two commands below in Terminal one after the other and tell us the output so we can take a look.

    Code:
    diskutil list
    
    diskutil cs list
     
  4. NoBoMac macrumors 6502a

    Joined:
    Jul 1, 2014
    #4
    Looks normal. Top "Mac HD" is the physical drive. Second one is the "mounted" Core Storage volume, third is the on-disk version. I see that on my SSD that has FileVault enabled: the third "Mac HD" is the actual encrypted storage, while the second entry is the decrypted and mounted volume.
     
  5. e93to macrumors 6502a

    e93to

    Joined:
    Jan 23, 2015
    Location:
    Toronto
    #5
    Have you restarted your computer yet by any chance? I had similar experience after installing El Cap partition. After restarting the computer, the it all went back to normal
     

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