Apple have made it much easier to create an OS X Yosemite installer USB drive and this same process can also be done for OS X Mavericks. In this video and article I will show you what you need to do to make this happen.

You can check out the older video 123myit.com video for the Mavericks USB here.

What do you need to get started?
* 8GB or larger USB drive, SD Card or USB hard drive
* OS X Yosemite.app or Mavericks.app (this can be downloaded from the App Store)
* An Apple computer with access to the Apple App Store
* A user account with administrator rights

Step 1. Download Yosemite, Mavericks from the App store.
Apple direct link here.
Step 2. Insert your USB into the Mac and run the Disk Utility.
Step 3. Erase the USB, so it becomes a clean USB with no data on it.
Step 4. Download OS X Yosemite App, get it from the Apple Store.
Step 5. Open Terminal and use the command below. Make sure the Yosemite App is located on your Desktop of your Mac.

NOTE: Change the USB name to MyVolume or you can change code “MyVolume” to the same name as your USB drive.

OS X Yosemite
sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ Yosemite.app

OS X Mavericks
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ Mavericks.app

This install may take some time depending on the speed of your Mac hardware. Once the Terminal finishes copying everything across you will then be able to use the OS X Yosemite installer USB drive to do clean installs of OS X Yosemite.

If you are looking for a video on how to setup OS X Mavericks USB you can use the code above if that doesn’t work you can find the 123myIT.com video.
How to do a clean install of OS X Mavericks from USB

Good luck,
Matt