Upgrading 10.04 from Ubuntu 9.10 or Ubuntu 8.04 LTS
posted Mar 18, 2010, 9:33 AM by Thiyagaraaj M
updated Mar 18, 2010, 9:36 AM
To upgrade from Ubuntu 9.10 on a desktop system, press Alt+F2 and type in "update-manager -d" (without the quotes) into the command box. Update Manager should open up and tell you: New distribution release '10.04' is available. Click Upgrade and follow the on-screen instructions.
To upgrade from Ubuntu 9.10 on a server system: install theupdate-manager-core package if it is not already installed; edit /etc/update-manager/release-upgrades and setPrompt=normal; launch the upgrade tool with the commandsudo do-release-upgrade -d; and follow the on-screen instructions.