Ensure you’ve always got a copy of Mountain Lion locally.
Shortly after OS X Lion made its debut last year, we told you about a terrific utility called Lion DiskMaker, which creates bootable disks and drives in just one click. The free application just received an update that makes it fully compatible with OS X Mountain Lion.
Luckily, there’s an even easier way to make a bootable OS X Lion disk now. It’s called Lion DiskMaker, and it turns making your own installable Lion USB key drive into a one-click affair.