It's upgrade time. We all know the sensible way to do this is to upgrade sequentially through the version numbers (yawn). However, Ubuntu 9.10 will only perform the in-place upgrade over 9.04 and nothing earlier. If you're still an Ubuntu Badger, Heron or Ibex, you have little choice but to clean-install. Maybe, like me, the time has come to upgrade the hard drive and start-over from scratch with a new file-system and software stack. The in-place upgrade is one thing, a clean install something else. True, there are lots of “Top Ten things to do after installing Operating-System-X” articles around; many give good advice on exactly which repositories to update, recommended programs, codecs, UI tweaks. This list aims to go back to first principles; what to do before you start, during and after...