[HowTo] Upgrade Ubuntu 8.10 to Ubuntu 9.04

Now i want to share with you all, how to upgrade Ubuntu 8.10 to Ubuntu 9.04 without reinstalling the Ubuntu.

For Ubuntu desktop edition:

1. Press ALT+F2
2. Type update-manager -d
3. Update Manager should open up and tell you: New distribution release ‘9.04’ is available.
4. Click Upgrade and follow the on-screen instructions.
5. Wait until the process finish.
6. That’s it!

For Ubuntu server edition:

1. Install the update-manager-core package if it is not already installed
2. Type: vim /etc/update-manager/release-upgrades
3. Set Prompt=normal and save file
4. Type this command: sudo do-release-upgrade
5. Follow the on-screen instructions
6. That’s it