Sysadmin > MacOSX > OSXMakeBootableUSBStick

How to make a bootable USB Stick with El Captain

  1. Download der OS X El Capitan installer into the Application folder via App Store. The installer will remove itself when you run the installer, but you can download the installer again.
  2. Format an USB Stick (> 8Gig) with Extended (Journaled) HFS+ with the name "foobar" or something you like.
  3. Go to the Terminal and type

sudo /Applications/Install\ OS\ X\ El\ --volume /Volumes/foobar --applicationpath /Applications/Install\ OS\ X\ El\ --nointeraction

How you have a bootable USB Stick.

You can choose the boot disk with system preferences or by holding der option key.