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How to create El Capitan USB installation with Terminal commands

To install OS X El Capitan ► restart computer ► hold the Option key and select Installation USB drive from the menu. Wait a few minutes and your El Capitan installation USB drive will be prepared. In our case "Untitled" is the name of USB flash drive! Replace "Untilled" by name of your flash drive. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction When you have prepared your USB flash drive and El Capitan installer is downloaded from App Store ► open Terminal and type command: The createinstallmedia is a command line tool distributed with OS X installer. How to create El Capitan installation USB drive with createinstallmedia tool The minimal capacity of flash drive must be 8 GB.

Format it with GUID Partition Table and name it as Untitled.

Prepare a flash drive with OS X Disk Utility. Preparation - get OS X El Capitan installer and USB flash driveĭownload El Capitan installer (Install OS X El Capitan.app in Applications folder) available in Mac App Store. Four ways how to create El Capitan USB installation flash drive: