[ubuntu] reinstallation of Ubuntu with RAID & LVM

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http://ubuntuforums.org – I have had a lot of fun with my Ubuntu machine over the last few years. I use it as a server and have experimented with a lot of different pieces of software on it. I recently upgraded through three releases (without rebooting between each, stupid, I know) and now a lot of things do not work. I am not too upset because I would like a fresh install to get rid of a lot of the "experiments." My only concern is, while the Ubuntu installation is on a single hard drive, I have 6 hard drives on Software Raid 5 and LVM on top of that. I really do not want to lose the data on these dri (Hardware)