Rollback mountain lion install

Disk Utility: Repair or erase a disk using Disk Utility. Selecting this option and clicking Continue launches Disk Utility, which you can use to check, repair, erase, or partition connected drives, including your startup drive. You can get back to the Utilities window at any time by quitting Disk Utility. Other options In addition to the four main functions in the Utilities window, recovery mode also offers a few options in its Utilities menu displayed when viewing the main OS X Utilities screen : Firmware Password Utility, Network Utility, and Terminal.

You may be wondering what version of OS X will be installed if you use recovery mode to reinstall the operating system. If your drive is having serious problems, so your Mac has to boot into Internet Recovery, reinstalling OS X gives you whatever version of the OS your Mac originally shipped with. This mounts the Recovery HD partition in the Finder. Of particular interest is BaseSystem. You can then unmount the Recovery HD volume by typing diskutil unmount [identifier] , where [identifier] is the same identifier you used above.

He wishes he had a recovery mode right about now. Podcast Making Agile work for data science. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Related 2. Hot Network Questions. Question feed. Ask Different works best with JavaScript enabled. Want more? Advanced embedding details, examples, and help! Publication date Topics mountain , lion , mountainlion , osx , macos , macosx , osxlion , osxmountainlion , osx Un-archive the zip archive and you will get the app Installer.

NOTE: If you get a damaged message when launching, no need to worry. Run this command in Terminal:. I am going to guess a was Mavericks. Apr 21, AM. Apr 21, PM in response to weonne In response to weonne.

You should be able to downgrade to Mountain Lion. The 2 articles below indicate that was the OS that the computer shipped with. Apr 21, PM. Apr 25, AM in response to weonne In response to weonne. Once you verify that, you can actually close out the reinstall process don't go through with it yet and use Disk Utilities to erase your hard drive Macintosh HD to give yourself a clean re-install of Mountain Lion.