Ubuntu 12.04 LTS Precise Pangolin has just been released by canonical and bring with new features and support 5 years. It is one of the most anticipated Ubuntu release ever. Well, today I will write a guide about Two Method That is Helping Ubuntu User to upgrade Ubuntu 11.10, 11.04, and 10.04 to Ubuntu 12.04
How to Upgrade to Ubuntu 11.10 to Ubuntu 12.04
Method 1: Using the Ubuntu 12.04 ISO Image File
This is the the easiest and less time consuming of the two, provided you have the downloaded Live ISO image of Ubuntu 12.04 LTS. All you have to do is to burn it to a CD or Make USB start-up and start the Ubuntu 12.04 installation process after booting from it.
Ubuntu installer has automatically detected that Ubuntu 11.10 “Oneiric Ocelot” has been already installed and the second option in that menu is for directly upgrading Ubuntu 11.10 to Ubuntu 12.04 LTS “Precise Pangolin”. thats it
Method 2: Using Update Manager
On Ubuntu 11.10, launch the update manager and start checking for updates. If there are any updates to install, use the Install Updates button to install them, and press Check again after that is complete. Then, you will be prompted with the following window.
Now you can Hit Upgrade button and begin downloading required packages for upgrading to Ubuntu 12.04 LTS precise pangolin. This might consume a lot of time (its depending on your Internet bandwidth speeds).
How to Upgrade Ubuntu 10.04 LTS to Ubuntu 12.04 LTS
According to Ubuntu Engineering team, “Upgrades between LTS releases are not enabled by default until the first point release, 12.04.1, scheduled for July. It is recommended that most LTS users wait until then before upgrading to 12.04.”
But if you insist on upgrading Ubuntu 10.04 LTS to Ubuntu 12.04 LTS , this is what you need to do. Hit ALT+F2 and run “update-manager -d” (without quotes). Update manager will open up and you will be prompted with the “New release available” option.