

This procedure has worked in testing, but is not officially supported by Apple.ĭepending on how you install Lion or Mountain Lion, you may need to do this after downloading, but before installing, as the downloaded package may be deleted from your Applications folder during the installation. Con.You may be able to make an Install DVD or partition on a hard drive (including a USB thumb drive).

You’ll also notice that the “ Restore” button in the lower right corner now becomes active (clickable). The name of the partition (see “ 2” below) should appear. Now drag the partition of the flash drive onto the input field of the “ Destination” until a green “ +” appears. You’ll see something similar to the image below just under point “ 1“.

Next select the “ Restore” section and click the “ Image…” button next to the “ Source” input field.Ī window will open in which you have to select the previously copied or moved “ InstallESD.dmg“, and then click “ Open“. Open Disk Utility (you can find in the “ Utilities” folder of your “ Applications” folder, or you can use Spotlight to find it).įirst we must find our USB drive on the left side of the Disk Utility window – make very sure that you’re picking the right device, since the drive will be completely erased! In my example I’m using a 64Gb Kanguru eFlash (very fast USB pen drives and great customer service!).įirst select the correct drive and partition. As you can see in the image below I selected a partition of the 64.39 Gb drive. CAUTIONThe drive will be completely wiped in this process!
