This brief tutorial will show you how to easily upgrade from Ubuntu 10.04 Lucid Lynx to Ubuntu 10.10 Maverick Meerkat from the command console or terminal. If you run Ubuntu server or desktop and want to upgrade from the command line, then this tutorial should able to help you.
To get started, connect to the terminal and run the commands below to update your current system before upgrading.
sudo apt-get update && sudo apt-get upgrade
Then type ‘Y’ to accept and continue updating your system.
After that, type the command below to install update-manager-core if you don’t already have it:
sudo apt-get install update-manager-core
Then you need to change the upgrade prompt to Normal. To do that, type the commands below:
sudo vi /etc/update-manager/release-upgrades
Press I on your keyboard, then change the value of the Prompt to ‘normal’, then press the Esc key. To save the file, type this: colon, w, q (:wq).
Next, type the commands below to begin the upgrade:
sudo do-release-upgrade -d
Type ‘Y’ to continue with the upgrade.
Wait for all packages to download and upgrade. You may have to restart your computer.
Enjoy! And please come back soon.