If it has a different name, replace MyVolume in these commands with the name of your volume. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using.
Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended. Connect the USB flash drive or other volume that you're using for the bootable installer.Use the 'createinstallmedia' command in Terminal
It installs an app named Install OS X El Capitan into your Applications folder.
Open this file and follow the onscreen instructions.
How to easily create a windows 10/8.1/8/7 installer USB flash drive on Mac OS X - Duration: 5:52.įind the appropriate download link in the upgrade instructions for each macOS version: