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I have a new(er) HP Pavillion G6, and I completely wiped the hard drive to install ubuntu primarily, with a small Windows 7 partition. I created a partition for "/", the "/home" directory, a little for swap, and one for the windows section. Finished installing, restarted, it says "boot device not found, please install operating system. What steps should I take to install ubuntu and windows 7? Thank you for any help offered.