[ubuntu] Drive now exists in parallel universe

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http://ubuntuforums.org – I successfully installed Ubuntu on a hard drive. That hard drive now exists in a parallel universe and cannot interact with storage devices from this one. Allow me to explain. There are two identical 74GB WD Raptor hard drives connected to this computer. One has Ubuntu 12.04 and the other has Windows XP Professional with Service Pack 3. When I boot into Windows, it can see everything except the hard drive that Ubuntu is on. When boot into Ubuntu, I can't even figure out what it sees and what it can't see because I can't find a list of devices connected to the system. Can it see the windows dr (Hardware)