How to Update to Mac OS X Lion Without Losing Your Current Installation [Mac OS X]

Despite our initial skepticism, there are some pretty compelling features in Mac OS X Lion. That said, it's still a beta and running it as your primary OS is a little risky for several reasons. If you want to give it a shot without the risk, you don't have to give up your current OS X installation or even boot from an external drive. Here's how. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/ljC-1uwgHLw/how-to-update-to-mac-os-x-lion-without-losing-your-current-installation

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