Howto: Upgrade To Ubuntu 13.04 Raring Ringtail From 12.04, 12,10 | Desktop & Server

Updated 05-04-2013: Ubuntu 13.04 Raring Ringtail Will Be Released Soon, If You Have Ubuntu 12,10, 12.04 Precise Pangolin Or Older Version Of Ubuntu Installed On Your System, And You Want To Upgrade To This New Release,  You Can Do It By Following These Instructions.
Important: The most important things when it comes to upgrading are:
  1. That your data is safe
  2. That you end up with a fully functional system
Your personal data is the most valuable thing in your computer. If anything happens and you break your operating system, it’s not a problem, it can be reinstalled. If you lose your data… that’s a different story.
To be safe:
  1. Make a full backup of your data on an external device (USB stick or CD/DVD).
  2. Download and burn the liveCD of the newer release, and check that your hardware is fully functional with it.

- Desktop Upgrade:

a- Update the system before to upgrade:
Before to upgrade, we need to update the system, press Ctrl+Alt+T, and enter the following command:
sudo apt-get update && sudo apt-get dist-upgrade
  • b- Upgrade:
To upgrade, open terminal and enter the following command:
sudo update-manager -d
Update Manager should open up and tell you: New distribution release ’13.04‘ is available ( See screenshot bellow).
Then click : Upgrade
upgrade-2A new screen will appear asking you if you want to start Upgrade:
Press start upgrade.
Now don`t close your computer until the upgrade is finished.

- Server Upgrade:

To upgrade from Ubuntu 12.10 on a server system to Ubuntu 13.04:
1- install the update-manager-core package if it is not already installed:
sudo apt-get install update-manager-core
2- Edit /etc/update-manager/release-upgrades and set Prompt=normal;
3- Launch the upgrade tool with the command
sudo do-release-upgrade -d
and follow the on-screen instructions.
Important: This is a beta release. Do not install it on production machines. The final stable version will be released 26th of April 2013.
For questions please refer to our Q/A forum at : http://ask.unixmen