I tried to update as described here: https://help.ubuntu.com/community/PreciseUpgrades/Kubuntu . But after updating all packages with muon-updater no upgrade available message pops up as described there. Check for updates is enabled in the systemsettings. Any ideas what could be wrong or how do I upgrade on the commandline?

I do not remember any errors when doing the muon update. And I get:

~> sudo do-release-upgrade

Auf neue Ubuntu-Freigabe prüfen

Keine neue Freigabe gefunden

(in german; means no update available)

But:

~> cat /etc/lsb-release

DISTRIB_ID=Ubuntu

DISTRIB_RELEASE=11.10

DISTRIB_CODENAME=oneiric

DISTRIB_DESCRIPTION="Ubuntu 11.10"