Bootable USB with OS X Mountain Lion

Find the InstallESD.dmg
- either from App Store (Start installing Maverics (even if you are already on Maverics) and the location to the file is: /Applications/Install OS X Mavericks.app/Contents/SharedSupport/InstallESD.dmg
- you can also extract it from the Recovery Partition

Note: do not use the iso version and don't try to convert it. You will fail.

Then download http://liondiskmaker.com/ and follow the instructions.

3 thoughts on “Bootable USB with OS X Mountain Lion”

  1. After copying the installation package to Applications folder:
    sudo /Applications/"Install OS X Mavericks.app"/Contents/Resources/createinstallmedia --volume /Volumes/"Flash Name" --applicationpath /Applications/"Install OS X Mavericks.app"
    where "Flash Name" -- the real name of your flash.

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