How to Make a Bootable OS X Yosemite USB Install Key

How to Make a Bootable OS X Yosemite USB Install Key

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These are instructions on how to make a bootable OS X Yosemite USB key.

Step One
Connect a 8GB or larger USB key to your computer then launch the Mac App Store from your dock.
How to Make a Bootable OS X Yosemite USB Install Key

Step Two
Navigate to the OS X Yosemite application page and click the Install button. If you are already on, or have already downloaded Yosemite, you may need to click the Download button.
How to Make a Bootable OS X Yosemite USB Install Key

How to Make a Bootable OS X Yosemite USB Install Key

Step Three
Launch Disk Utility from the Applications:Utilities folder.
How to Make a Bootable OS X Yosemite USB Install Key

Step Four
Select your USB thumb drive from the list on the left and click the Partition tab.
How to Make a Bootable OS X Yosemite USB Install Key

Step Five
Set the Partition Layout to 1 Partition, set the Name to 'Yosemite', and set the Format to Mac OS Extended (Journaled).
How to Make a Bootable OS X Yosemite USB Install Key

Step Six
Click the Options button then choose GUID Partition Table from the popup window then click the OK button.
How to Make a Bootable OS X Yosemite USB Install Key

Step Seven
Next click the Apply button to save your changes. When asked to confirm click the Partition button.
How to Make a Bootable OS X Yosemite USB Install Key

How to Make a Bootable OS X Yosemite USB Install Key

Step Eight
Launch Terminal from the Applications:Utilities folder.
How to Make a Bootable OS X Yosemite USB Install Key

Step Nine
Make sure your empty USB key is still inserted. Additionally, make sure you do not have any other volumes named 'Yosemite' except for the one we just created in Step Five.

Execute the following command in the Terminal window to create your OS X Yosemite Install key.

sudo '/Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia' --volume '/Volumes/Yosemite' --applicationpath '/Applications/Install OS X Yosemite.app' --nointeraction
How to Make a Bootable OS X Yosemite USB Install Key

You will be asked to enter your Administrative account password.
How to Make a Bootable OS X Yosemite USB Install Key

Step Ten
After about 15 minutes the creation of your USB Install Key for OS X Yosemite will be complete.
How to Make a Bootable OS X Yosemite USB Install Key

Step Eleven
You may now restart your Mac and hold down the Option key after hearing the boot sound. You'll be presented with a list of bootable drives. Select the USB install key.
How to Make a Bootable OS X Yosemite USB Install Key

How to Make a Bootable OS X Yosemite USB Install Key

How to Make a Bootable OS X Yosemite USB Install Key

stilnox - October 25, 2014 at 5:25am
is it normal that only Install OS X Yosemite.app is in the thumbdrive?
Robsfirst1 - October 19, 2014 at 11:53pm
Warning! BEWARE! This line command erased my unrelated CF card that was in my CF reader ready to import images and video. I looked down and noticed the light flashing on the drive and it didn't make sense to me and I looked at the finder and found the SUDO command had renamed my CF card to 'Install OSX Yosemite' Did anyone else experience and anomaly? Will iClarified pay for any possible data recovery?
Dave121424234 - October 20, 2014 at 1:53pm
HAHAHA... you're so funny. Maybe you shouldn't be running commands you don't understand... idiot.
Leigh - October 26, 2014 at 1:58am
The sudo command had nothing to do with it. You were the tool who picked the wrong drive in Disk Utility and re partitioned it!
Jonzjob - July 2, 2015 at 12:14pm
Dave121424234 it must be sheer hell up there on that pedestal and being so perfect!
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