Easy steps to upgrade Ubuntu from 8.10 to 9.04

1. Check your Ubuntu version


lsb_release -a



2. Apply all updates for your Ubuntu 8.10


sudo apt-get update

sudo apt-get upgrade



3. Upgrade from Ubuntu 8.10 to 9.04


sudo do-release-upgrade



4. Check your Ubuntu version


lsb_release -a



5. Bingo.