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Bootable usb os x mountain lion how to#
Bootable usb os x mountain lion mac os x#
Bootable usb os x mountain lion download#

User account with Administrative access.

The process is nearly identical, with a few alternate items to complete the process: ( Figure G)Ĭreating a USB Installer for Apple OS X 10.5-10.6 The process may indicate in excess of one hour, but in my experience the process takes significantly less time to complete. Upon verifying that the fields are correct, click the Restore button and select Erase from the application, if prompted to do so. For Destination, drag & drop the partition created on the USB drive onto the textbox. In the Source textbox, click the Image button and select the InstallESD.dmg file on your Desktop. Go back to Disk Utility and click on the newly formatted USB Drive in the menu, then click on the Restore tab.ġ0. Navigate the file structure Contents | Shared Support and drag the InstallESD.dmg file to the desktop. Right-click the file and select Show Package Contents.

Bootable usb os x mountain lion mac os x#

Upon completion of the USB formatting, locate Install Mac OS X Mountain Lion.app (downloaded in step #1 to the Applications folder, by default). Click on the Options button and select the radio button for GUID Partition Table and click OK. Select Mac OS Extended (Journaled) for the format-type from the drop-down menu. Click the drop-down menu, selecting 1 partition.ĥ. Click on the USB drive from the left-hand menu and select the Partition tab.Ĥ. Insert the USB drive into the Mac and launch Disk Utility.ģ.

Bootable usb os x mountain lion download#

Using a Mac with at least OS X 10.6.8 installed, access the Mac App Store and download the Lion (10.7) or Mountain Lion (10.8) app installer.Ģ. User Account with Administrative privilegesġ.Apple computer with Mac App Store (OS X 10.6.8+).Install OS X Mountain Lion.app (installer downloaded from Mac App Store).Creating a USB Installer for Apple OS X 10.7-10.8īefore proceeding, we'll need the following items to complete the process: Luckily, Macs have a couple of options, specifically USB booting, and since most have an SD card slot, we can use those as well. Not so easy anymore is it? Even downloading the OS from the Mac App Store wouldn't do when the hard drive needs replacing or the Recovery Partition is corrupt.

Installing OS X has never really been a particularly difficult task, but try doing that on a MacBook Air or a system with a broken optical drive. After that click OK.With the advances in technology, faster data access (SSD), and slimming hardware footprints, legacy technologies are typically the first cuts made to get these devices thinner and lighter while making them more powerful and efficient. Then click GUID Partition Table which is found in the Options menu. In the drop-down menu select the format-type Mac OS Extended (Journaled).ĥ. Now the job starts to get harder and some images well make it clearer.Ĥ. After that select 1 partition from the drop-down menu. The second step refers to clicking on the USB drive and going for the Partition tab.ģ. The first step it’s about inserting the USB drive into the device (Mac) and then pressing the Disk Utility button.Ģ. If you have these four things you can go on with the process.ġ. Install OS X Mountain Lion (10.8).app (download it from Mac App Store) Apple computer with Mac App Store (OS X 10.6.8+) An 8GB USB Flash Drive (or a SD Card which will also do the trick)

Bootable usb os x mountain lion how to#

I kept on hearing that installing OS X is a very difficult job, especially if you do it on a MacBook Air so i decided to show you how to make a bootable USB install OS X in 10 easy steps.īefore you get started you’ll need a couple of things in order to get the job done: