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Mac os lion dmg
Mac os lion dmg









This file is called Install OS X Mountain Lion. It is saved in the Applications folder on the Mac. You can also use a USB flash drive with at least 5GB capacity (8GB and 16GB are available sizes) as a bootable medium.ĭownload a copy of OS X Mountain Lion that you must purchase at Apple Store online and download it from the Mac App Store. If your Mac doesn't have an integrated SuperDrive, use an external DVD burning tool. DVD dual layer is available wherever standard DVDs are sold. The OS X Mountain Lion installer is just too big a thing to match the standard DVD. DVD dual layer has two layers, increasing the available recording space to about 8.5GB.

mac os lion dmg

You need a dual layer DVD (DVD with double sided recording) and a disc or USB drive.

  • Copy the InstallESD.dmg file to the flash drive.
  • Copy the installer Lion X Mountain Lion to the USB can boot.
  • mac os lion dmg

    Burn the bootable DVD of the Lion X Mountain Lion installer.Locate the installation of Mountain Lion image.

    mac os lion dmg

    How to create OS X Mountain Lion installer on DVD or USB











    Mac os lion dmg