Reformatting After Failed Boot Camp Partition

Discussion in 'macOS' started by DaveBarbier, Mar 30, 2010.

  1. DaveBarbier macrumors newbie

    Joined:
    Mar 5, 2010
    #1
    Hi,

    I have a 320GB internal drive on my Intel Mac Mini. I tried to make a windows partition using Boot Camp. After I dragged the slider to select the partition size (100GB) and hit 'next' it didn't work. A message came up and basically said it failed. I don't remember what the message was exactly, something like "Verification failed. Some files could not be moved." But now, my Mini thinks it only has a 220GB drive. I open Disk Utility and I tried to reformat but it will only go to 220GB. It seems I lost the other 100GB.

    Any help would be greatly appreciated.

    Thanks
     
  2. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #2
    When using the BootCamp assistant, it is vital that you have everything closed, especially when creating such a large partition.

    Are there two partitions on the disk?
     
  3. DaveBarbier thread starter macrumors newbie

    Joined:
    Mar 5, 2010
  4. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #4
    What error are you getting when you try expand the volume to take the unclaimed space?
     
  5. calderone macrumors 68040

    calderone

    Joined:
    Aug 28, 2009
    Location:
    Seattle
    #5
    I don't know what error you are getting but try this:

    1. Add a new partition, it should take over the unpartitioned space
    2. Format it HFS+
    3. In Terminal:
    Code:
    diskutil list
    That will give you a list of devices and partitions, and their corresponding device id.
    4. Get the device ids for the two paritions and follow this guide:
    Code:
    diskutil mergePartitions "Journaled HFS+" NewName disk3s1 disk3s2
    
    Replacing NewName, disk3s1 and disk3s2 with the values for your situation.
     
  6. DaveBarbier thread starter macrumors newbie

    Joined:
    Mar 5, 2010
    #6
    Damn, I tried that already. When I show the list using diskutil list, it shows the drive but with only 220GB available. I think this would work if it correctly made the partition. But since it failed it doesn't show another partition with the rest of the missing space. I tried expanding the partition to over 220 but it says it's not possible. It will work if I set it to 219G but nothing over 220.

    I have second guessed myself asking if this is really a 320 drive. This problem happened a few months ago so I keep going back to Amazon.com and looking to make sure the drive I ordered is actually 320, lol.
     

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