

Open the “Contents” directory and then open “SharedSupport”, looking for a file named “InstallESD.dmg”ĭouble-click on InstallESD. Go to the /Applications/ directory and right-click on “Install Mac OS X Mountain Lion.app” selecting “Show Package Contents” If you already have the Mac OS X Mountain Lion install DMG extracted, skip this first set of steps and jump directly to making the bootable drive below.ĭownload OS X Mountain Lion and Extract the DMG Fileĭownload OS X 10.8 Mountain Lion from the App Store We’ll walk through the process here, but don’t forget to check OS X 10.8 system requirements for the destination Mac before beginning.

On the off chance that you are running macOS X lion 10.7 or prior, you ought to probably move up to the most recent rendition of mac os x lion 10.7 from the App Store. Nonetheless, this refresh will keep running on Mac 2012 or later forms. By creating a bootable install drive, you can perform clean OS X 10.8 installs, install it on separate partitions, and install OS X Mountain Lion on Macs that don’t have internet connections. macOS x lion 10.7 is the most recent rendition of Mac with new highlights.
