![]() Copy it from the installer package to your Desktop. This is the disk image we’ll need to create a local OS X installation disc or USB drive. Right-click (or control-click) on this file and select “Show Package Contents.” This will reveal the “guts” of the Installer’s application package.ĭrill down to Contents > SharedSupport and find the “InstallESD.dmg” file. Here you’ll find an app called “Install OS X 10.8 Mountain Lion” or something similar depending on the version of OS X you downloaded from the Mac App Store. Open Finder and navigate to your Applications folder. Quit it by pressing Command+Q we don’t need the installer application, just what’s inside it. Once it’s complete, the OS X Installer will automatically launch. Create usb boot drive for mac os x download#OS X is a multi-gigabyte file so the download process may take a while depending on your connection speed. Find your desired version of OS X in the list and click the “Download” button to the right. If you’ve already purchased OS X, open the Mac App Store and head over to the “Purchases” tab. ![]() Note that you can always re-download the version of OS X that came with your Mac for free.Īs of the date of this article, OS X 10.8 Mountain Lion is the current OS, although the recently-announced OS X 10.9 Mavericks is right around the corner. Create usb boot drive for mac os x how to#Here’s how to create your own USB or DVD Installer for OS X.įirst, you’ll have to purchase a copy of OS X from the Mac App Store if you don’t already have one. This approach brought many benefits, such as not having to keep and safeguard a physical disc, immediate access to the OS when purchased instead of having to wait in line, and server-side updates to the downloadable installer so that the most current version of OS X is always installed when updating new machines.īut what if you’ve just installed a new hard drive in your Mac and have no version of OS X with the Mac App Store? Or what if you don’t have a reliable Internet connection? In these cases, it’s always best to have a physical local copy of the OS X installer. Instead of a traditional disc, customers could now purchase and download OS X directly from the Mac App Store. With the release of OS X 10.7 Lion in 2011, Apple officially abandoned physical media for its operating system installations. For OS X Mavericks, see this updated process. UPDATE: Apple has changed the process for creating a USB installer with OS X Mavericks and the method below no longer works. ![]()
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