How to burn a Lion boot disc

These instructions won’t do much for everyone right now since OS X Lion is still in the hands of the developers. Bookmark, Evernote or Instapaper this post for future use. You’ll be glad you did when Lion rolls out next month.

Mac OS X Lion will debut in July, and this handy set of instructions from Egg Freckles will let you create a boot disc for installation. OS X Lion will be distributed via the Mac App Store, and you can download the installer files to your hard drive. Once you have the installer files, follow these steps to create your very own boot disc:

  • Use Finder to locate the Mac OS X Lion installer, right-click and select “Show Package Contents.”
  • Find the SharedSupport folder and look for a file named “InstallESD.dmg.” This is the Lion Boot Disc image.
  • Copy the “InstallESD.dmg” file to another folder, such as your desktop.
  • Launch Disk Utility and click the burn button.
  • Select the “InstallESD.dmg” copy as the image to burn, insert a DVD, and in a few minutes, you will have a brand new Lion Boot Disc.


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