So I have been stuck on 11.10 for fear of doing a dist upgrade and breaking everything trying to go up multiple versions. It has come a time that I finally should move up to at least 14.04 and looking for some advice.
Currently I have the OS and main partitions installed on a separate 500GB hard drive and a raid 5 mdadm array over 5 other disks. I am worried that I'll screw something up after I get 14.04 installed and not be able to re build my raid array.
Looking on advice on best steps or practice to ensure I have a smooth(er) upgrade experience without losing everything.