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  1. #1


    Member Since
    Feb 04, 2010
    Posts
    4
    Question DMG files launch Disk Utility
    This is probably a question that can be quickly answered, but I can't find any information about this even with my Google-Fu.

    Before today, whenever I would double-click a .dmg file, it would automatically mount to the desktop. Now, when I double-click them, instead they open Disk Utility (from Utilities) and I have to mount them manually.

    Any idea why this happened? How do I get it back to the default setting where they automatically mount without opening Disk Utility?

    Thank you!

  2. #2

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,766
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPhone 3GS Note 8!
    What version of OSX? It might help someone help you.

    This should work for you no matter which OSX you are running. Find a DMG, Right click (Control-Click if you have no right click) and on Get Info. Look toward the bottom of that window. You should see Open with. I will bet yours says Disk Utility. Click the clicker and change that to DiskImageMounter. Also click the Change All button below that.

    Let us know if that solves is. Somehow it's been changed to open with Disk Utility when a DMG is clicked on instead of the Disk Image Mounter. Don't forget the Change All button.

    Below is how it should look.
    Attached Images Attached Images

  3. #3

    MacForever's Avatar
    Member Since
    Feb 28, 2008
    Location
    Toronto
    Posts
    93
    Specs:
    G5 Tower
    I have the same problem with my 10.4 and it says < no mounting platform>, i know im close, just cannot open dmg since i did disc install.

  4. #4

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,742
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    Are you getting that error after changing the settings so that DMGs open with DiskImageMounter?
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
    M-F Blog :: Write for the blog
    Writing a Quality Post

  5. #5

    MacForever's Avatar
    Member Since
    Feb 28, 2008
    Location
    Toronto
    Posts
    93
    Specs:
    G5 Tower
    yes, and i also get (codec overrun)

  6. #6

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Location
    Toronto
    Posts
    19,742
    Specs:
    2012 13" MBP (2.5 i5, 8GB)
    Could be that the dmg is corrupt. Try re-downloading it.
    Important Links: Community Guidelines : Use the reputation system if you've been helped.
    M-F Blog :: Write for the blog
    Writing a Quality Post

  7. #7

    MacForever's Avatar
    Member Since
    Feb 28, 2008
    Location
    Toronto
    Posts
    93
    Specs:
    G5 Tower
    i've tried it with firefox and many other things also i tried taking firewall off.

  8. #8


    Member Since
    Sep 09, 2009
    Location
    Down Under :D
    Posts
    5,484
    Specs:
    Back to my old 2.2GHz C2D MB after selling my MBP and wondering what my next Mac will be :)
    Once again MacForever, PLEASE stick with your original threads regarding your ongoing issues.
    Don't cross post, start new threads, or bring up old threads with your same ongoing issues.
    Sure, if you have a solution, and you see another thread where you can offer that solution, great, otherwise, you are only making it very difficult for the moderators to manage these forums!

    http://www.mac-forums.com/forums/os-...g-anymore.html

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