[ubuntu] Installation/Upgrade of Ubuntu 12.04.1 dual-boot on a HP Pavillion DV6-6140us

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http://ubuntuforums.org – In Dec2011 I posted how to turn an out-of-the box HP DV6-6140us into a dual-boot machine that runs both Windows 7 64bit and Ubuntu 11.10 32bit. That post is at: http://ubuntuforums.org/showthread.php?t=1893523 Today I upgraded Ubuntu on this same machine from 11.10 32bit Desktop Edition, to 12.04.1 64bit Desktop Edition. TO SUMMARIZE, Ubuntu 12.04.1 64bit works great on the 6140us except that manually installing fglrx (aka ATI Catalyst driver) is preferable to installing it via Ubuntu's Prioprietary Software service. Before upgrading my system from 32bit to 64bit, I did try an upgra (Hardware)