![]() ![]() You can make a bootable USB drive or disk from the Recovery Partition 2 ways – the easy way and on the Terminalġ) Download OSX Recovery Disk Assistant and uncompress and launch it 2) Attach the USB drive that you want to copy the Recovery Partition to.ģ) Select the drive and continue (All contents on it will be erased) From the Recovery Partition Hard Drivr you can run Disk Utility, access the command line, get online help and do a restore from a Time Machine backup and re-install Mountain Lion leaving all your other files intact – it just replaces the core operating system. If you bought a new machine from Apple you have OS X 10.8 already installed – but no back up disk! and since you haven’t bought the OSX Lion 10.8 App from the App store you can’t re-download it – so thats why you have the recovery drive as a partition in your main hard drive, to boot from it you need to restart the machine and when it starts to boot hold down “command” + “r” keys. On every OS X 10.8 Mountain Lion there is a hidden partition to enable a method for Mountain Lion OS to be reinstalled on the machine, it is known as the Recovery Partition or drive and is 650mb in size. For more on Mountain Lion, be sure to read the official Cult of Mac review.Make a Bootable USB Drive of OS X 10.8 Mountain Lion from the Recovery Hard Drive If you’d rather install Mountain Lion without a bootable copy and keep your setup the way it is, refer to our general tutorial. Choose your Mac’s hard drive and begin installing Mountain Lion.īy following those steps, your Mac will be restored to Apple’s stock setup and all of your personal files will be gone. ![]() ![]() Once your Mac’s hard drive is erased, quit Disk Utility and go back into the Mountain Lion installer.(Make sure you have a backup first, just in case.) From the erase tab, choose “Mac OS Extended (Journaled)” and wipe your drive. Inside the Mountain Lion installation tool, you can open Disk Utility and erase your Mac’s hard drive.Restart your Mac while holding down the option key.For a clean install of Mountain Lion on any compatible Mac, follow these steps: Now that you have a bootable copy of Mountain Lion, this drive/disk acts as a full-fledged setup tool for upgrading other Macs to the new OS. ![]()
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