To make a bootable USB boot drive for installing onto a mac.


When you want to reinstall Yosemite after wiping the hard drive for a plain install.


Get a USB drive. I recommend getting one that has more than 16 GB of storage. Format the drive with the Disk Utility application and keep it named “Untitled”. Then open the Terminal.app and run the following:

sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ Yosemite.app --nointeraction


  1. i want to erase my computer
  2. to just start from 0 all over again
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