Install and Run macOS Sierra from an External SSD

How To Install and Run macOS Sierra from external SSD or USB 3.0 Flash Drive.

Easy to follow tutorial on How To Install and Run macOS Sierra from an external SSD USB 3.0 Drive.

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TRANSCRIPT:

I’ve already demonstrated on a previous episode, how to install and run OS X Yosemite from a USB 3.0 flash drive, using the old Disk Utility.

Install and Run OS X Yosemite From A USB Flash Drive:
https://youtu.be/VORHOkkGMm0

How To Create macOS Sierra 10.12 USB Boot Disk:
https://youtu.be/3WkUp1lK_sY

In this episode, I’ll be demonstrating, how to install and run macOS Sierra on an external USB 3.0 SSD drive, using the new Disk Utility in OS X El Capitan.

Soooooo, Let's Get Started.

What you will need:

An Intel Based Mac System.

Downloaded copy of macOS Sierra Installer.

And finally, a fast USB 3.0 Flash or External SSD Drive.

As usual, since we'll be using Disk Utility, make sure you have or made a backup of your system hard drive or drives before proceeding, can't say you’ve not been warned.

Now, with all the basic necessities taken care of, the first thing we'll need to do after inserting the SSD drive in an available USB 3.0 socket, is to open Disk Utility and partition the SSD Drive.

Therefore, after opening Disk Utility, click on the SSD drive in the sidebar, then click the Partition button shown here.

Now, name your Partition to whatever you like and make sure that the format is OS X Extended (Journaled).

Then click the Apply button to format and partition the SSD drive.

After formatting and partitioning the SSD drive, you can close Disk Utility and simply launch the macOS Sierra installer and choose to install Sierra on the SSD drive just formatted and partitioned, as shown here.

I’ll just time lapse the installation process from here, which took about 14 minutes to complete, to point where you begin to select your location.

Once the required login details have been entered, you are brought to the Sierra desktop.

At this point, it’s advisable to change the startup disk order from the SSD drive to your default start up drive of your Mac, which in my case is the Macintosh HD as shown here.

Once that’s taken care of, I’ll just shutdown the Mac and proceed with the power and option key combination to boot to the Startup Manager and click the SSD drive to launch macOS Sierra as shown.

And that’s all there is to it.

Thanks for watching and thumbs-up if you liked this video, and please, don't forget to subscribe to be notified of the next episode.

Thanks and Peace.

Download macOS Sierra for Free from the Mac App Store when released this fall or if you have a paid Developer License, Download Now from Apple's Developer Website or wait till July to download Public Beta Preview.

Useful Links for USB 3.0 Flash and SSD Drives Used in this Demo:

Samsung V-NAND 850 EVO 500GB SSD:
Amazon US: https://goo.gl/60Pznm
Amazon Canada: http://goo.gl/f73ykE
Amazon UK: http://goo.gl/bfX5Se

Lexar 32 GB USB 3.0 Flash Drive:
Amazon US: http://goo.gl/pdErGe
Amazon Canada: http://goo.gl/S2rJBN
Amazon UK: http://goo.gl/rWWlUT

Performed and Tested On MacBook Air (13-inch, Mid 2012) on Samsung V-NAND SSD 850 EVO installed in External USB 3.0 Enclosure and Lexar 32GB USB 2.0 JumpDrive P10. Using OS X El Capitan 10.11.5 and macOS Sierra Developer Preview 10.12

The Samsung V-NAND 850 EVO SSD was installed in External USB 3.0 Enclosure.