Burning Mountain Lion on a DVD

Discussion in 'OS X Mountain Lion (10.8)' started by kayut, Jul 25, 2012.

  1. kayut macrumors member

    Jul 4, 2011

    If I try to burn the InstallESD.dmg with Disk Utility on a DVD with 4.7GB capacity, I get a similar error like this:
    "There is not enough space on the DVD".

    If I mount the InstallESD.dmg image it is 4.75GB big, which explains the error.

    Does anybody know a solution for this?
    Or should I burn the image on a DL DVD ?

  2. VulchR macrumors 68020


    Jun 8, 2009
    Odd - it fit on the DVD-RW I burned (4.37 GB).
  3. heisenberg123 macrumors 603


    Oct 31, 2010
    Hamilton, Ontario
    8GB USB stick is the easiest way to do it
  4. klmaj macrumors member

    Jul 14, 2012
    Can I please ask a question. I got my macbook pro yesterday. I'm trying to burn the InstallESD.dmg for Lion 10.7.4 can someone tell me where exactly this is found on the machine? Or do I actually have to go buy it from the app store?

    What I'm trying to do is....

    I just got a new SSD and I don't have an enclosure for it, just trying to get an OS on it. I have 3 X blank DVDs at my disposal. Thanks.

    By the way I am downloading Mountain Lion at the moment. If I just burn the InstallESD.dmg for this, can I install it on a blank SSD? Thanks again.
  5. Auzburner macrumors 65816


    Apr 11, 2008
    Syracuse, NY - USA
    You can install the ML InstallESD.dmg onto the blank SSD if you choose. You will need an 8GB flash drive, though some have had success burning to a 4.7GB DVD.

    You may also use the recovery partition to install Lion to the new SSD externally. When booting, hold option and select the recover partition. Use the Lion installer available there.

    A third option would be to go through the the standard ML upgrade on your current system, then boot to the ML recovery partition by holding option at boot again. Then connect the external SSD, and use the installer to select the external drive.
  6. rusty2192 macrumors 6502a

    Oct 15, 2008
    I got the exact same error. The .dmg image is only 4.35 GB, yet it says it won't fit on a 4.7 GB DVD. In the mean time I just have a copy of the .dmg on my desktop til I can either get it on a disk or find a dirt cheap flash drive.
  7. adztaylor macrumors 68000

    Aug 20, 2009
    Preston, UK
    It won't fit on a single layer DVD. You need a double layer. The .dmg extracts when burning. I have installed ML on a double layer DVD and works perfectly.
  8. klmaj macrumors member

    Jul 14, 2012
    Hi I would like to conclude by saying I went and bought a cheap 8 gig USB stick and managed to do it.
  9. ivnj macrumors 65816

    Dec 8, 2006
    I bought a 16gb usb stick at frys for 10 dollars. So usb is much better. But how does that work. Just open the dmg and drag the files onto the usb??
  10. blevins321 macrumors 68030

    Dec 24, 2010
    Winnipeg, MB
    Open Disk Utility, and choose the flash drive's partition. Select the Restore Tab. The source is the DMG, and the destination is the USB partition. :)
  11. PatriotInvasion macrumors 68000


    Jul 18, 2010
    Boston, MA
    Same thing happened to me. DVD did not have sufficient space even though the Lion installer fit last year. Ended up going the lengthy route of upgrading Mountain Lion on top of Lion, rebooting in recovery mode, erasing the HD, and reinstalling clean.

    Took a long time because I had 2 extra steps - the original upgrade install and then having to redownload the .dmg in recovery mode.

    When the dust settled, the mission was accomplished though. Fresh clean install of Mountain Lion on my iMac.

    I'll probably pick up a USB stick at some point though. Done with DVD's;)
  12. deji458 macrumors newbie

    Jul 26, 2012
  13. iMerik macrumors 6502a

    May 3, 2011
    Upper Midwest
  14. Mr. Retrofire macrumors 603

    Mr. Retrofire

    Mar 2, 2010
    The fastest method:

    This creates automatically a disk image with one Apple Partition Map (APM) and zero free space, a so called "optimized" disk image.
  15. odraude, Aug 11, 2012
    Last edited: Aug 11, 2012

    odraude macrumors member

    Jun 17, 2012
    Near You
    i just copied the file to the blank dvd and now its burning, what happened? i ruined my only dvd that i had left?

    edit_ nah, it worked just fine !!

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