I am in the process of upgrading my trusty file server that has been running Ubuntu 6.1 since 2007. I havent touched that box till now. I am wondering to upgrade to the latest version of ubuntu, do i need to reformat or there is some way for me to update the kernel? I am striving to learn about linux and everything is very new to me. I really do not want to reformat as that will nuke all my samba configs...can someone advise me?