Hard Drive Format??

Discussion in 'Apple TV and Home Theater' started by Unverrich, Sep 14, 2009.

  1. macrumors regular

    Unverrich

    Joined:
    Aug 24, 2008
    Location:
    USA
    #1
    When I try and format my external HD in disk utility, i get this message...

    Disk Erase failed with the error:

    POSIX reports: The operation couldn’t be completed. Cannot allocate memory


    why? what do i do?
     
  2. macrumors 68020

    michael.lauden

    Joined:
    Dec 25, 2008
  3. thread starter macrumors regular

    Unverrich

    Joined:
    Aug 24, 2008
    Location:
    USA
    #3
    ?? Thanks? I dont know what Im looking for or else i would have tried that! Why so rude?
     
  4. thread starter macrumors regular

    Unverrich

    Joined:
    Aug 24, 2008
    Location:
    USA
    #4
    anyone else know?
     
  5. macrumors 6502a

    Joined:
    Mar 21, 2005
    #5
    I am having the same problem. If this guy looked at his own recommendation, he would realize that there isn't a fix for this yet. Some have said use a PC to format it in NFTS and then reformat it with your mac.

    This makes me really nervous to use this disk for a backup though :confused:
     
  6. macrumors newbie

    Joined:
    Oct 4, 2009
    #6
    same problem here.

    with Seagate External Drive. Takes about ten minutes to appear in Disk Utility but never appears in Finder. In Disk Utility permission options are grayed out. Erase gets a "POSIX" error. Ran directly through Terminal and was able to erase the disk but not format:

    Macintosh-4:/ Mustafa$ diskutil secureErase 2 /dev/disk3
    Started erase on disk3
    Pass: 1
    Pass: 2
    Pass: 3
    Pass: 4
    Pass: 5
    Pass: 6
    Pass: 7
    Finished erase on disk3
    Macintosh-4:/ Mustafa$ diskutil partitionDisk disk3 2 MS-DOS A1 500M "Journaled HFS+" A2 0B
    Started partitioning on disk3
    Unmounting disk
    Error: 12: POSIX reports: Cannot allocate memory
    Macintosh-4:/ Mustafa$

    Been looking for a solution for a while, i thought maybe it was a hardware failure but the drive is less than a month old and after research it seems a lot of people are having this problem since upgrading to snow leopard. Any ideas anyone???

    Noticed also that in Disk Utility the drive is showing up as being 2.2TB when it is actually only 500GB.
     

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