An older Mac may be needed to run software. Stay tuned Macs sold with different hardware in the same model name on or after July 25, 2012, may not be able to run Lion, or earlier versions of Mac OS X, though are still able to run Windows. If you're interested in the new OS, then be sure to read our guide on preparing your Mac for installing the upgrade, which includes information on the OS requirements, backing up, and clearing up resolvable issues before performing the upgrade.tip, no USB Flash drive is available for Mountain Lion, and it can only be gotten from Apple Mac App Store. If your flash drive appears as an icon on the desktop, right-.Apple has released its OS X 10.8 Mountain Lion (see CNET's full review) and it's available for download from the Mac App Store on systems running OS X 10.6.6 or later. What’s a maintenance-minded Mac user to do Create your own bootable OS X USB drive, of course It’s easy, and if you’ve already purchased OS X and have a USB drive that’s 1 GB or larger, it’s completely free.The drive will disappear from the sidebar, and you can safely disconnect it from the computer. But OS X Mountain Lion is sold in the App Store as a digital download no physical disk is provided.As with OS X Lion, Apple will likely release USB drives containing a bootable Mountain Lion installer, but this will cost you more than the App Store download. If you have any data on the USB, remember to make a backup.You also might be interested in creating a standalone install drive for Mountain Lion. Connect the USB flash drive you want to use to fix your Mac.Purchase and download Lion from the Mac App Store (or use your up-to-date redemption code), and when the download is finished, the Mountain Lion installer will load. Therefore, to create a standalone USB or optical media install drive for OS X 10.8 Mountain Lion, do this: However, when following the procedure for Lion you might run into a snag that will prevent the drive from being created. Here's how to do it.We previously outlined how to create your own OS X install drive when OS X Lion was released, and the process for Mountain Lion is for the most part the same.In the new window that opens, go to the Contents > SharedSupport folder and locate the file called "InstallESD.dmg." Right-click the "Install Mac OS X Mountain Lion" application in the Applications folder, and choose "Show package contents." In this case, you can go to the Purchases section of the App Store and redownload the installer.
Make Mountain Lion Thumb Drive On Windows Download From TheConnect a spare USB or FireWire drive that has at least 6GB of capacity, which should show up in Disk Utility. If you wish to create a USB or FireWire install drive instead, then continue on to step 6. In Disk Utility select the InstallESD.dmg file, and then you can click the Burn icon in Disk Utility's toolbar to burn the image to a DVD (single-layer 4.7GB discs do not have enough space, so use dual-layer 8.5GB discs). Cod4 18 patch downloadIf restoring the InstallESD.dmg file directly does not work, then first mount it and restore the "Mac OS X Install ESD" volume that appears (click for larger view). You can overcome this by first mounting the InstallESD.dmg file and then using the mounted volume as the Source for the restoration, instead of the disk image file itself. Confirm you would like to do this, and when complete you should have a fully bootable Mountain Lion installation drive.This process should work as described but the restoration process could fail with an error. Drag your destination drive (the desired USB or FireWire drive volume) to the Destination field, and then click the Restore button. When you do this you should see the disk image appear in the Source field, but if not then drag it there. Select the InstallESD.dmg file in Disk Utility and click the Restore tab that appears in the main Disk Utility window.
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