

For detailed usage instructions, make sure that the appropriate Install OS X app is in your Applications folder, then enter one of the following paths in Terminal: Examples of this command are in the next section. Use the createinstallmedia command in Terminal to create the bootable installer. Open the Terminal app, which is in the Utilities folder of your Applications folder. You could also use a secondary internal partition. Mount your USB flash drive or other volume. The installer will be in your Applications folder. Quit the installer if it opens automatically after downloading. Use the 'createinstallmedia' command in Terminalĭownload the OS X installer from the Mac App Store. These advanced steps are intended primarly for system administrators and others who are familiar with the command line. With OS X El Capitan, Yosemite, or Mavericks, you can use a USB flash drive or other removable media as a startup disk from which to install OS X. Sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Mavericks.app -nointeraction Make sure the downloaded installer package is installed in the Applications folder. Sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Yosemite.app -nointeraction Prepare an 8GB USB drive labeled Untitled: Quit Terminal and continue the install.In the installer, choose Utilities > Terminal. To change the date from Terminal (which is likely all that will be accessible), follow these steps, which sets it to February 1st 2016 for example:.And set the clock in terminal prior to that date:.Pkgutil -check-signature /path/to/installer/app

