Greyed out Disk Utility Cannot Resize or add

Discussion in 'MacBook Pro' started by jamesjingyi, Feb 8, 2015.

  1. jamesjingyi macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #1
    I don't know how it has happened but my disk utility seems to have gone wrong. It has greyed out bits and a large free space which I see no way of extending into. It happened after I tried to create free space to install Windows but it seems to be permanent after this. Can anybody help?

    Attached is a screenshot of what disk utility looks like
     

    Attached Files:

  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    It looks like you're using a fusion drive, I think that may have something to do with your inability to resize it. The text on the right says the full size of the fusion drive is not available for repartitioning.

    I don't use fusion drives so I'm not familiar with the issues faced with fusion drives and resizing partitions.
     
  3. jamesjingyi thread starter macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #3
    I have partitioned before and there were loads of errors but now it refuses completely. I can't even create a drive in the free space... Argh it annoys me :(
     
  4. Fishrrman macrumors G4

    Fishrrman

    Joined:
    Feb 20, 2009
    #4
    OP:

    First things first -- make sure the internal drive is BACKED UP.

    You might try this terminal command that turns off CORE storage:
    diskutil cs revert disk1

    That may work.

    If it doesn't, what I would do:
    - Create a bootable cloned backup using either CarbonCopyCloner or SuperDuper
    - Boot from the cloned backup
    - Reinitialize the internal drive and be sure CORE storage was disabled
    - RE-clone the contents of the cloned backup -back to- the internal drive
     
  5. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #5
    Run the command below in Terminal and paste the output up here so we can work through this with you.

    If you have not already, do a full backup because we will likely end up erasing your drive here.

    Code:
    diskutil cs list
     
  6. jamesjingyi thread starter macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #6
    Right. Firstly I backed up everything. Secondly I formatted everything. I booted from a install USB and I still cannot resize. I will try and post it through the apple support safari bit

    ----------

    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group 238A24D8-4691-4F3E-8214-6C6077ECE094
    =========================================================
    Name: MacintoshHD
    Status: Online
    Size: 816256983040 B (816.3 GB)
    Free Space: 65536 B (65.5 KB)
    |
    +-< Physical Volume A93EAA50-905D-431B-A91D-73C35FD6A298
    | ----------------------------------------------------
    | Index: 0
    | Disk: disk0s2
    | Status: Online
    | Size: 127691702272 B (127.7 GB)
    |
    +-< Physical Volume AB8DDDF7-DE03-4D32-AFDE-CCA1006EB93A
    | ----------------------------------------------------
    | Index: 1
    | Disk: disk1s2
    | Status: Online
    | Size: 688565280768 B (688.6 GB)
    |
    +-> Logical Volume Family 6FFEE567-124C-456F-A103-6E44CB90785B
    ----------------------------------------------------------
    Encryption Status: Unlocked
    Encryption Type: None
    Conversion Status: NoConversion
    Conversion Direction: -none-
    Has Encrypted Extents: No
    Fully Secure: No
    Passphrase Required: No
    |
    +-> Logical Volume ACEE7C82-5769-4009-9F23-DD7A8014A0C1
    ---------------------------------------------------
    Disk: disk3
    Status: Online
    Size (Total): 810364960768 B (810.4 GB)
    Conversion Progress: -none-
    Revertible: No
    LV Name: Macintosh HD
    Volume Name: Macintosh HD
    Content Hint: Apple_HFS
     
  7. Fishrrman macrumors G4

    Fishrrman

    Joined:
    Feb 20, 2009
    #7
    OP wrote above:
    [[ Right. Firstly I backed up everything. Secondly I formatted everything. I booted from a install USB and I still cannot resize. I will try and post it through the apple support safari bit ]]

    Did you try this:
    diskutil cs revert disk1

    ????
     
  8. jamesjingyi thread starter macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #8
    It says 'disk1 is not a CoreStorage Logical Volume'
     
  9. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #9
    Looks like you made your own Fusion drive yes?

    Okay... let's nuke this and start over. Copy this down first then command-option-r to Internet recovery. Once recovery comes up start Terminal from the Utilities menu and enter the following commands one after the other.

    Code:
    diskutil cs deleteVolume ACEE7C82-5769-4009-9F23-DD7A8014A0C1
    Code:
    diskutil cs delete 238A24D8-4691-4F3E-8214-6C6077ECE094
    That will kill the Fusion drive. Now start Disk Util and reformat both drives that you should now be able to see individually (I think this happens on its own after the commands).

    That will leave you with the two bare drives. Now you can rebuild your Fusion like you did before and restore your backup.
     
  10. jamesjingyi thread starter macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #10
    It may help that this is a DIY Fusion drive.. And that I tried to install Windows and it didn't work... 3 times...

    ----------

    Woo I thanks so much!!!! I'm gonna refusion them now :D

    ----------

    Oh wait... Umm when I do distil list, there are still other volumes from /dev/disk0 to /dev/disk15
     
  11. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #11
    Don't worry about those. Just use the commands I gave you to start over. Those are likely other "virtual" hidden volumes for things like the EFI partitions etc.

    If you have any externals, disconnect them while you are doing this.
     
  12. jamesjingyi thread starter macrumors 6502a

    jamesjingyi

    Joined:
    Dec 20, 2011
    Location:
    UK
    #12
    Ok, thanks so much for your help!
     

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