How to Upgrade from Ubuntu 8.04 (Hardy Heron) to Ubuntu 8.10 (Interpid Ibex)

This time I will try to explain, how to upgrade your Ubuntu hardy Heron 8.04 to the newest Ubuntu Intrepid Ibex. that have been released on the 30th of October 2008.
First, you have to know that by default Ubuntu 8.04 LTS won't offer an upgrade to 8.10. But, upgrades from 8.04 LTS to 8.10 are fully supported, and it's easy to enable. Ok, let's begin...... Are you ready? eh.. what about Ubuntu CD installer. You can download it from a lot of mirror server around the world. Just use www.google.com to find it.

1. You can directly upgrade to Ubuntu 8.10 from Ubuntu 8.04 LTS.
2. The upgrade will not be presented by default because 8.10 is not a Long Term Support (LTS) release.
3. Be sure that you have all updates applied to Ubuntu 8.04 LTS before you upgrade.
4. Take a complete backup of your ubuntu system

Start Your Upgrade
In your Hardy Heron, Start software sources from System -- Administration -- Software Sources.
Once it opens click on the “Updates” tab and change “Show new distribution release” to “Normal releases”.
Then click on "Close" Button.
Start Update manager from System--t;Administration -- Update Manager.

Click the "Check" button to check for new updates.If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete.
A message will appear informing you that "New distribution 8.10 is available". Then click "Upgrade" .
You will see "Downloading Update" Box. AAt the next, clik Start Upgrade. Follow teh process.
When you see a message like "Replace teh customised configuration ...." click "Replace" button.
And when you're asked to "Remove obsolete package?" click "remove" Button.
Then Restart your computer.

To check your Ubuntu version by type the following command:

sudo lsb_release -a

and see, the result.

I hope, this tutorial will help you to stay use Ubuntu.

regard