Cannot partition SSD on brand new Retina Pro (Yosemite)

Discussion in 'OS X Yosemite (10.10)' started by Tony Danger, Jan 11, 2015.

  1. Tony Danger macrumors member

    Tony Danger

    Joined:
    Dec 19, 2014
    #1
    I'm needing to install Windows via bootcamp, but cannot partition the drive. When trying to I get the following error:

    "Partition failed with the error: This core storage operation is not allowed on a sparse logical volume group".

    It seems I also have the dreaded FileVault bug, where it is stuck on paused, waiting for my power adapter to be plugged in all the time.




    Is there a way round this without doing a full re-install of the machine? I'm not near my backup HDD at the moment, so it's out of the question.
     
  2. maflynn Moderator

    maflynn

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  3. Tony Danger thread starter macrumors member

    Tony Danger

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    Dec 19, 2014
    #3
    Yes. I can't, since it has the bug where it is stuck encrypting.
     
  4. maflynn Moderator

    maflynn

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    #4
    Bummers, I was unaware of it :(

    I guess since its stuck, I'd say a clean install may be your only option.
     
  5. Tony Danger thread starter macrumors member

    Tony Danger

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    Dec 19, 2014
    #5
    It's a pain in the arse. formatting is what I wanted to avoid.
     
  6. Tony Danger thread starter macrumors member

    Tony Danger

    Joined:
    Dec 19, 2014
    #7
    I'm confused. None of that was relating to filevault bugging out and locking the drive and being unable to be turned off as far as I can see.

    To be clear, I haven't upgrades, I have a brand new macbook pro retina that is about 2 weeks old, and I'm trying to make a 60gb partition in the drive to have a small Windows install.
     
  7. h9826790 macrumors 604

    h9826790

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    #8
    #17 on that thread suggest run this code in terminal may fix the problem by turning off the core storage.

    Code:
    diskutil cs revert disk1
    Worth a try.
     
  8. Tony Danger, Jan 11, 2015
    Last edited: Jan 11, 2015

    Tony Danger thread starter macrumors member

    Tony Danger

    Joined:
    Dec 19, 2014
    #9
    Ah okay. Will that risk any data?


    ---

    Edit - Isn't core storage to do with Fusion drives etc? I don't have them, I have the single 256Gb SSD that is formatted into one lump.
     
  9. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
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    Hong Kong
    #10
    AFAIK, NO, but you should always have proper backup.

    Core storage may have nothing to do with Fusion drives in Yosemite.

    I've seen quite a few other posts has similar issue, you may search "diskutil cs revert" get the related threads. Read them through and then decide if you want to try this terminal command or not.
     
  10. Tony Danger thread starter macrumors member

    Tony Danger

    Joined:
    Dec 19, 2014
    #11
    "Started CoreStorage operation on disk1 Macintosh HD
    Error: -69666: This Core Storage operation is not allowed on a sparse logical volume group"



    It's gonna be a format isn't it?
     
  11. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #12
    [[ It's gonna be a format isn't it? ]]

    Looks like:
    1. Backup
    2. Disable CORE storage
    3. Re-initialize
    4. Restore.
     
  12. Weaselboy Moderator

    Weaselboy

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    #13
    Enter the command below in Terminal then post the output up here so we can take a look at what is going on.

    Code:
    diskutil cs list
     
  13. fahadmj macrumors newbie

    Joined:
    Mar 30, 2015
    #14
    i have the same problem and this is my output

    Name: Macintosh HD
    Status: Online
    Size: 499418034176 B (499.4 GB)
    Free Space: 0 B (0 B)
    |
    +-< Physical Volume 52DCB850-8D33-4711-B160-A363F3B905A6
    | ----------------------------------------------------
    | Index: 0
    | Disk: disk0s2
    | Status: Online
    | Size: 499418034176 B (499.4 GB)
    |
    +-> Logical Volume Family 6ADAD375-C635-4154-86BF-73250589F253
    ----------------------------------------------------------
    Encryption Status: Unlocked
    Encryption Type: AES-XTS
    Conversion Status: Converting
    Conversion Direction: forward
    Has Encrypted Extents: Yes
    Fully Secure: No
    Passphrase Required: Yes
    |
    +-> Logical Volume 0D93BD3C-2E22-4CD8-AC2D-B7D2460F24C6
    ---------------------------------------------------
    Disk: disk1
    Status: Online
    Size (Total): 499099238400 B (499.1 GB)
    Conversion Progress: Paused
    Revertible: No
    LV Name: Macintosh HD
    Volume Name: Macintosh HD
    Content Hint: Apple_HFS
     
  14. Weaselboy Moderator

    Weaselboy

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    California
    #15
    Looks like it stopped or got stuck part way through encrypting with FileVault.

    First make a full backup to a local (USB) disk with Time Machine, then option key boot to that backup disk. That will get you to a recovery screen. Then launch Terminal from the Utilities menu and enter the command below to wipe the drive. Make sure you enter it exactly like this including the quotes.

    Code:
    diskutil cs delete "Macintosh HD"
    Then quit Terminal and start Disk Utility. Go to the erase tab and select the internal drive and format to Mac OS Extended (Journaled). Then quit Disk Util and click restore and the OS and all your data will be moved from the backup disk to the internal drive.

    Then restart afterward and you should be back to normal with a drive partition that can be resized as needed.
     

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