The next Ubuntu version 11.04 Natty Narwhal is coming soon, if you intend to upgrade to 11.04 from current Ubuntu version there are 4 ways you can choose including online and offline upgrading.
Note: Make a backup of the sources, softwares, and important data, upgrade may cause something incompatible.
1.) GUI upgrading with update-manager
This is the most normal way to upgrade Ubu
Currently using 11.10 on a new dell vostro 2420 laptop and wanted to upgrade to 12.04.01lte.
Using the update manager and clicking the upgrade option first came up with a 'failure to authenticate' message and after a restart of the computer I click the upgrade and it will download 2 files then the popup closes and no further prompts/screens come up.
I am using ubuntu 11.10 and update manager is not showing the option to upgrade it to 12.04.
I have selected the 'Notify me of new Ubuntu version:' option to 'For any new version as suggested by some people, but still i am not getting the option to upgrade.
Screenshot of Selecting Option:
Screen shot of update manager not detecting upgrade: