Thursday, 10 September 2015

How to create a bootable Mac OS 10.11 El Capitan Installation USB Flash Drive


This guide will quickly show you how to make a Mac OS 10.11 El Capitan bootable USB installer it will work with the Gold Master candidate just released or the Retail version when it ships in mid September.



1 - Grab a copy of the 'Install OS X El Capitan.app' or the 'Install OS X El Capitan GM Candidate.app' from the App Store.

2 - Insert a blank USB flash drive in to your mac.

3 - Go to Applications > Utilities and open Terminal.app.

4 - Type the following command, all as one line, in to Terminal.app where 'Untitled' is the name of your USB drive.

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

5 - Wait awhile and you're USB flash drive will be ready.

6 - To boot from your Flash drive, either go to Apple > System Preferences > Startup Disk and select your USB drive, or hold down 'Alt' while booting for the boot device selector screen.

Good Luck!

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