Partition Error: Help!

Discussion in 'Mac Basics and Help' started by Claudius Oderma, Dec 30, 2010.

  1. Claudius Oderma macrumors newbie

    Dec 30, 2010
    I have just recently deleted my Bootcamp partition in Disk Utilities, and now im trying to increase the partition size of my Macintosh HD drive.

    When i go to the partition map and try to increase the size.
    The same error always appears.

    "Could not modify partition map because filesystem verification failed"

    I have attached an Image of what my partition map looks like right now.

    Please can some one help me.

    Attached Files:

  2. William Teske macrumors newbie

    Dec 31, 2010

    That very weird indeed. Try googling your problem.
    Or pay a visit the the Mac support group, im sorry i cannot be of much help.
    Good luck!

    William Teske
    (professional PC user)
  3. A Macbook Pro macrumors 6502

    Aug 22, 2009
    Put in a OS X install disc such as Snow Leopard or Leopard (Doesn't have to be the OS you're running), boot into it by holding option after you restart, run disk utility from there and click repair disc.
  4. Regiment47, Mar 5, 2011
    Last edited: Mar 5, 2011

    Regiment47 macrumors newbie

    Mar 5, 2011
    Chicago, IL
    I know the problem.

    You need to manually open bootcamp and correctly uninstall the windows 7 partition. Simply deleting it from your partition leaves data on your HD.

    I had the same problem, and now I have another. I can't create a third partition to attempt to run a copy of the Lion Beta. It's giving me the filesystem verification error.

    I deleted the partition through disk utility initially, so don't worry if you think its to late. Let me know if this worked for you.

    If anyone knows a solution hit me up at
  5. Morod macrumors 68000


    Jan 1, 2008
    On The Nickel, over there....
    I had all my data on the second of two partitions on my HD and this is how I was able to delete the partition HD1.

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