Create a USB Yosemite installer in five steps

From: “How to burn OS X Yosemite to a usb flash drive,” by Whitson Gordon. Lifehacker Australia, 17 Oct 2014.

  1. Download the Yosemite installer [App Store]
  2. Plug in a >= 8GB (or larger) flash drive
  3. Format as an OS X Extended (Journaled disk) and name it “Yosemite”[use Disk Utility]
  4. Paste this command into Terminal window:
    sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia –volume /Volumes/Yosemite –applicationpath /Applications/Install\ OS\ X\ Yosemite.app –nointeraction
  5. Enter your password as prompted

It may take 10 minutes or more.

HT @teutoburg

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One thought on “Create a USB Yosemite installer in five steps

  1. Those wanting to do the same for OS 10.9 “Mavericks”, replace the words “Yosemite” with “Mavericks” below. And rename the target flash drive, “Mavericks”:

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

    This procedure also restores the OS X Recovery Partition, which is not installed from bootable flash drives created by other methods.

    Remember that all content on the target flash drives are erased. So back up your files first.

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