How do you upgrade from previous version of ubuntu to
Jaunty Jackalope
Today while I am writing in this blog... my system is being upgraded to 9.04 Jaunty Jackalope.
I'll explain briefly whats to be done and then i'll give the commands in case you are a newbie or you have some doubts
Before an upgradation check your sources.list file and modify it by replacing the current distro name to Jaunty Jackope. If this is not done properly then your upgradation will fail.
After modifying the sources.list, run update-manager -d and you'll get update manager where you'll be notified about the 9.04 release and you can upgrade from there.
Now i'll post all the commands that are required from the beginning till the end of the upgradation.
1) Type "sudo gedit /etc/apt/sources.list" in the terminal without quotes.
and change all the distro names to Jaunty jackalope i.e if you are using Intrepid Ibex, you'll find this name in the file at many places. Just change them to Jaunty Jackalope.
Sometimes you may find difficulty in changing the names everywhere and end up making a mess. Alternatively you can copy this code from here. You can replace the entire code with this code
After making changes save it and close it.
2) Go to your applications manager by pressing Alt+F2 and type update manager -d and then Run the application by clicking on Run
3) After this you'll be notified of the upgrading to 9.04. Click on Upgrade
4) A new window with the release notes opens with confirming your request. Click Upgrade
If you see in the above release notes.. its only an RC. The procedure is same for the final release as well. The RC is not recommended for production systems.
5) Then immediately it'll start downloading the upgrade tool
6) It'll start preparing to upgrade
7) You might get a message that third party sources are disabled. Just click close and continue the process
8) Next it starts setting new channels for iinstallation
9) Now it asks whether you want to upgrade by downloading the packages
10) Now it starts downloading the packages required for upgrade