This guide shows how you can upgrade your Ubuntu Oneiric Ocelot (11.10) desktop and server installations to Ubuntu Precise Pangolin (12.04). Start the Update Manager ( System -> Administration -> Update Manager ) or if you use Ubuntu Unity GUI, then you can start Upgrade Manager via "Ubuntu Icon" (Dash Home) -> More Apps -> System -> Update Manager The Update Manager should show that a new distribution release (12.04) is available. So kindly click on the Upgrade button to start the distribution upgrade. A window with the release notes for 12.04 comes up. Click on Upgrade again. The upgrade tool is now being downloaded. Afterwards, type in your password. Finally after that click on Start Upgrade to finally begin with the upgrade process. Now you can see the new upgrade packages are now being downloaded and installed. Obviously depending on your speed of internet connection, this will take some time. At the end of the upgrade proces
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