Step 6: Ensure that your 8GB or greater USB Stick/Drive/SD card is mounted. Step 5: Lion DiskMaker will now give you two options - 'Burn a DVD', or 'Create a boot disk'. Go to 'Contents' and jump inside the 'SharedSupport' folder and you'll find a file titled 'InstallESD.dmg'.Right click on the downloaded file and select 'Show Package Contents'.If the utility doesn't find the image, go to the Applications folder and find the copy of Mountain Lion you downloaded. Select the bullton showing 'Mountain Lion (10.8)'. Step 4: Now, the program window will give you three buttons containing user options. Step 3: Open the compressed file and run the executable file. Step 2: Download the latest version of Lion DiskMaker (current version is 2.0rc2). Step 1: Download Mountain Lion from the Mac App Store. Must note that Lion DiskMaker will erase the volume or the drive you chose.

Given below are the steps, showing how to make a Mountain Lion bootable USB/SD Card/DVD drive using the Lion DiskMaker. Users need to have a SuperDrive and a writable DVD (single layer, 4,7 GB for Lion, or dual-Layer, 8,5 DVD-R) to burn the DVD and to build a bootable disk, a USB thumb key drive, a USB or Firewire drive or an SD-Card with minimum of 8 GB storage. The application is programmed with AppleScript and can be used now with Mac OS X 10.6, 10.7 and OS X 10.8 to burn a DVD or build a bootable drive from Mac OS X Lion or OS X Mountain Lion Installation program.

The Lion DiskMaker application has been updated to allow users to make a bootable USB or SD Card installer for the Mountain Lion. Having an independent bootable USB drive or SD Card also makes sense in case you want to install Mountain Lion on multiple computers without having to download it time and again. However, Apple's chosen method of distribution for the update has raised many eyebrows as it doesn't come with a USB or Optical Disk external installer.Īs Redmond Pie noted, since there's no physical installation source for the Mountain Lion, some users may face difficulties if anything goes wrong with their Mac while installing the update they may not even get access to the downloaded installer on their devices. The OS is currently available for download from the Mac App Store for $19.99. Lion DiskMakerĪpple finally released the latest version of its desktop operating system, 'OS X 10.8 Mountain Lion,' to millions of Mac users around the world Wednesday. OS X Mountain Lion: How To Make A Bootable USB Drive Or SD Card Installer For New Apple OS.

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