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  • How To Make a OS X Lion Boot Disk



    The first question that popped into my head after it was revealed that Lion would be a download only upgrade was "what if I need a boot disk?"

    I've had too many hard drives crash, and had to reinstall too many operating systems to do without a physical boot disk. Plus I've never been one to tote around an external bootable hard drive. Thankfully creating a Lion boot disk is quite painless.

    Egg Freckles posted the following instructions earlier today.
    1. Purchase and download Lion from the Mac App Store on any Lion compatible Mac running Snow Leopard.
    2. Right click on “Mac OS X Lion” installer and choose the option to “Show Package Contents.”
    3. Inside the Contents folder that appears you will find a SharedSupport folder and inside the SharedSupport folder you will find the “InstallESD.dmg.” This is the Lion boot disc image we have all been waiting for.
    4. Copy “InstallESD.dmg” to another folder like the Desktop.
    5. Launch Disk Utility and click the burn button.
    6. Select the copied “InstallESD.dmg” as the image to burn, insert a standard sized 4.7 GB DVD, and wait for your new Lion Boot Disc to come out toasty hot.

    Now you know how to make your very own OS X Lion boot disk once Lion is available. You will be able install it on any of your Lion compatible Mac's like you did before the digital download revolution. And for the Macbook Air or Mac Mini server, which lack an optical drive, users can utilize Disk Utility's Restore function to image the Lion boot disc onto an external drive to perform a clean install.

    Unless you've got an early build of Lion, bookmark these instructions, copy them, or store them away in your photographic memory for future use when Lion is available next month.

    Source: Egg Freckles
    This article was originally published in forum thread: How To Make a OS X Lion Boot Disk started by Phillip Swanson View original post
    Comments 24 Comments
    1. bsarules's Avatar
      bsarules -
      Quote Originally Posted by bootloader View Post
      I hope apple will sell a install disk it's going to take forever to download 4.7 GB
      This task will be made impossible for those with data caps. For an OS, a disc is needed to properly upgrade without issues. I don't see why Apple can sell a disc, even if for a little bit more money, but since they can't we all need to go to our local Apple Store, occupy their wi-fi, computers and employees to assist with installation, if Apple choose to go download only then it should be their resources used to upgrade our computers that can't upgrade otherwise. Or go to Apple - Feedback This is the most direct way to leave Apple engineers a message.
    1. blueman234's Avatar
      blueman234 -
      I can't seem to find the SharedSupport folder in the Lion image. It says go to contents but it does not have sharedsupport in there, can anyone please assist
    1. chillihound's Avatar
      chillihound -
      Not working for me. I have paid and downloaded OS X Lion from the Mac App Store.
      I have followed the instructions numerous times creating both a DVD and USB Thumbdrive and both fail to install.

      After restarting my macbook and holding the option key down I select the Lion installer be it either the DVD or USB whichever i'm trying to use and after a few minutes I get the following dialogue.

      There was a problem installing "Mac OS X"

      Try reinstalling
      I have tried several times without success so any advice appreciated.

      Quote Originally Posted by chillihound View Post
      Not working for me. I have paid and downloaded OS X Lion from the Mac App Store.
      I have followed the instructions numerous times creating both a DVD and USB Thumbdrive and both fail to install.

      After restarting my macbook and holding the option key down I select the Lion installer be it either the DVD or USB whichever i'm trying to use and after a few minutes I get the following dialogue.



      I have tried several times without success so any advice appreciated.
      A very odd thing, the Lion boot DVD works on the wifes late 2010 Macbook Pro but fails on my 2011 Macbook Pro.

      Puzzled
    1. chillihound's Avatar
      chillihound -
      Quote Originally Posted by chillihound View Post
      Not working for me. I have paid and downloaded OS X Lion from the Mac App Store.
      I have followed the instructions numerous times creating both a DVD and USB Thumbdrive and both fail to install.

      After restarting my macbook and holding the option key down I select the Lion installer be it either the DVD or USB whichever i'm trying to use and after a few minutes I get the following dialogue.



      I have tried several times without success so any advice appreciated.



      A very odd thing, the Lion boot DVD works on the wifes late 2010 Macbook Pro but fails on my 2011 Macbook Pro.

      Puzzled
      Erased PRAM and it worked like a charm.