install os x el capitan on external hard drive

Let’s get started: Step 1: Format the USB Drive to be Bootable The convenience of a portable flash drive is undeniable so it’s preferred if you’re going to be updating multiple Macs. How to Create a Bootable OS X Yosemite Installer Disk in 2 Stepsįor the purposes of this walkthrough, we’re going to use a 16GB USB flash thumb drive, but you’re free to use whatever you want, and you could even use an external hard drive if you really wanted to. Basically, if the Mac is capable of running OS X Mavericks, it is capable of running OS X Yosemite too. Of course, we’re assuming the destination Mac(s) that are going to get Yosemite are compatible.

The “Install OS X Yosemite.app” launcher in the /Applications/ directory of the Mac ( downloaded from the App Store, but not installed).A USB Flash Drive that is 16GB or larger which you don’t mind formatting.Before you begging, make sure you have the following basic requirements met: Requirements

Creating a Yosemite installation drive that is bootable is quite simple, but it’s a multiple step process.

Install os x el capitan on external hard drive