Resolved HELP: Cannot restore DMG image stored on NTFS disk!

Discussion in 'macOS' started by Thor774, Apr 10, 2012.

  1. Thor774, Apr 10, 2012
    Last edited: May 18, 2012

    Thor774 macrumors regular

    Thor774

    Joined:
    Sep 14, 2007
    #1
    Hello. My MacBook Pro has OSX Lion on it.

    I have created a DMG image of my starting volume using Disk Utility. The image was saved on an NTFS formatted external USB disk. I used Paragon NTFS for Mac to activate writing on NTFS partitions. The image was created, tested and it mounted fine. It's size is 105GB.

    I have restarted the system and am accessing Disk Utility from the recovery partition that OSX Lion creates. Disk Utility can see the NTFS disk and I can choose the DMG image as source and the partition on the internal hard disk as a target without problems but when I press the restore button and the Image scan process is going to start I just get an error that says "Unabke to scan Mac-OSX HD. Resource busy". When I try the SCAN BEFORE RESTORE command on Disk Utility on the image I am getting "Unable to scan MAC IMAGE.DMG (Not such file or directory)".

    I have already erased my startup disk and really need to get this image back in place. It is the only backup I have of my data.

    Any help is greatly appreciated!
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    It is probably due to the DMG being stored on an NTFS drive, even though Mac OS X can read from them.
    What if you just reinstall Mac OS X without restoring and restore from the DMG later?

    And if you get your Mac running, think about using CarbonCopyCloner or SuperDuper! to make a bootable backup to an external HDD (properly formatted*), as using one file (DMG) to store all your files is not a secure backup method, as one file can get corrupt.

    *
     
  3. Mattie Num Nums macrumors 68030

    Mattie Num Nums

    Joined:
    Mar 5, 2009
    Location:
    USA
    #3
    Its most likely an NTFS issue. Not to be a jerk but its never a good idea to put mission critical Mac data on an NTFS share or disk.
     
  4. Thor774, Apr 22, 2012
    Last edited: May 18, 2012

    Thor774 thread starter macrumors regular

    Thor774

    Joined:
    Sep 14, 2007
    #4
    Damn, I never get the notification mails from the forum. Sorry for the delay in answering.

    You were all correct. Moving the dmg file to a Mac formatted hard disk was the answer, but I ended up reinstalling OSX and all my programs anyway and copying just data back from my image as there were some quirks on my actual installation.

    I still think that if the OS states that it supports reading from a file system it should not have any problems at any level. I did not see or find any warning about the impossibility of disk utility to read from an image located on an NTFS formatted disk.
     

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