@related: ubuntu
# 1/ remove maximum of package
sudo apt-get remove ` dpkg -S /usr/lib/libX11.so.6.2.0 | cut -d: -f 1 ` \ openoffice.org-l10n-en-us openoffice.org-common openoffice.org-common \ tecnoballz-data tecnoballz gnome-games-data kdelibs-data bochsbios \ java-common eclipse-pde-common eclipse-rcp-common sun-java5-bin sun-java5-jre mysql-common \ gedit-common gftp-common gimp-data gaim-data gcj-4.1-base \ gnome-applets-data gnome-desktop-data gnome-mime-data gnome-panel-data gnome-terminal-data \ emacs21-bin-common emacs21-common mutt lshw lsof \ gstreamer0.10-tools gstreamer0.10-plugins-base-apps gstreamer0.8-plugin-apps gstreamer0.8-tools
sudo apt-get remove ` deborphan ` # several times
# 2/ update source list
cp /etc/apt/sources.list /etc/apt/sources-dapper.list sed -e 's|dapper|edgy|g' -i /etc/apt/sources.list cp /etc/apt/sources.list /etc/apt/sources-edgy.list
# 3/ sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade
# 4/ [[Install]] removed applications sudo apt-get install localepurge ; dpkg-reconfigure localepurge sudo apt-get install ` apt-cache search ubuntu | grep -e '^ubuntu-' | cut -d' ' -f 1 `
# 5/ [[UnInstall]] unused application sudo apt-get remove evolution evms