Ubuntu 11.04 update manager doesn show any upgrades to 11.10 [duplicate]

Question

Possible Duplicate:
How do I upgrade from 11.04 to 11.10?

When i open update manager to check for new versions it doesn show the 11.10 upgrade, i've tried also with apt-get update and it says my software is up to date. Can anyone help me??

Answer 1

Open terminal and type following:

sudo apt-get update && sudo apt-get -y upgrade
sudo do-release-upgrade

It should help you. If problem persists, write following to terminal:

sudo nano /etc/apt/sources.list

(if you aren't terminal-friendly, write gksudo gedit instead of sudo nano) and rewrite natty to oneric and do this:

sudo apt-get update
sudo apt-get upgrade