Problem partitioning Fusioned MacBook Pro

Discussion in 'MacBook Pro' started by jamesjingyi, Jan 31, 2015.

  1. jamesjingyi, Jan 31, 2015
    Last edited: Jan 31, 2015

    jamesjingyi macrumors 6502a


    Dec 20, 2011
    Hi guys

    So I have replaced the optical drive in my 2012 MBP 13" with a 1TB 7200rpm HDD. This now runs with my 128GB Samsung 840 Pro SSD and I fusioned them when setting up Yosemite. Now I have run into a problem. When I try to partition, I am met with:

    Partition failed with the error:

    A problem occurred while resizing Core Storage physical volume structures.

    There is no error code for some reason as well.

    Please help!

    EDIT: For some reason I can partition in Boot Camp Fine

    Attached Files:

    • Help.png
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  2. Samuelsan2001 macrumors 604

    Oct 24, 2013
    Fusion the issue.

    see this apple FAQ for details.

    As you can see you can only add one partition to a fusion drive and that is on the HDD, in your case that will be the bootcamp partition.

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