ubuntuusers.de

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.10
DISTRIB_CODENAME=utopic
DISTRIB_DESCRIPTION="Ubuntu 14.10"

https://help.ubuntu.com/community/VividUpgrades

If you installed from 14.04 or 12.04 originally you will need to remove LTS upgrade restrictions. Replace Prompt=lts with Prompt=normal:
sudo pico /etc/update-manager/release-upgrades
Install update-manager-core if it is not already installed:
sudo apt-get install update-manager-core
Launch the upgrade tool:
do-release-upgrade

pico /etc/update-manager/release-upgrades

# Default behavior for the release upgrader.

[DEFAULT]
# Default prompting behavior, valid options:
#
#  never  - Never check for a new release.
#  normal - Check to see if a new release is available.  If more than one new
#           release is found, the release upgrader will attempt to upgrade to
#           the release that immediately succeeds the currently-running
#           release.
#  lts    - Check to see if a new LTS release is available.  The upgrader
#           will attempt to upgrade to the first LTS release available after
#           the currently-running one.  Note that this option should not be
#           used if the currently-running release is not itself an LTS
#           release, since in that case the upgrader won't be able to
#           determine if a newer release is available.
Prompt=normal

apt-get install update-manager-core

Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut.
Statusinformationen werden eingelesen.... Fertig
update-manager-core ist schon die neueste Version.
0 aktualisiert, 0 neu installiert, 0 zu entfernen und 2 nicht aktualisiert.

do-release-upgrade

Checking for a new Ubuntu release
No new release found

apt-get update

OK   http://security.ubuntu.com utopic-security/universe Translation-en
Ign https://deb.packager.io trusty InRelease
Ign https://deb.packager.io trusty Release.gpg
Ign https://deb.packager.io trusty Release

vim /etc/apt/sources.list

# deb cdrom:[Ubuntu-Server 14.10 _Utopic Unicorn_ - Release amd64 (20141022.2)]/ utopic main restricted

#deb cdrom:[Ubuntu-Server 14.10 _Utopic Unicorn_ - Release amd64 (20141022.2)]/ utopic main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://de.archive.ubuntu.com/ubuntu/ utopic main restricted
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic main restricted


## Major bug fix updates produced after the final release of the
## distribution.
deb http://de.archive.ubuntu.com/ubuntu/ utopic-updates main restricted
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://de.archive.ubuntu.com/ubuntu/ utopic universe
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic universe
deb http://de.archive.ubuntu.com/ubuntu/ utopic-updates universe
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://de.archive.ubuntu.com/ubuntu/ utopic multiverse
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic multiverse
deb http://de.archive.ubuntu.com/ubuntu/ utopic-updates multiverse
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://de.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse
##deb-src http://de.archive.ubuntu.com/ubuntu/ utopic-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu utopic-security main restricted
##deb-src http://security.ubuntu.com/ubuntu utopic-security main restricted
deb http://security.ubuntu.com/ubuntu utopic-security universe
##deb-src http://security.ubuntu.com/ubuntu utopic-security universe
deb http://security.ubuntu.com/ubuntu utopic-security multiverse
##deb-src http://security.ubuntu.com/ubuntu utopic-security multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu utopic partner
# deb-src http://archive.canonical.com/ubuntu utopic partner

## Uncomment the following two lines to add software from Ubuntu's
## 'extras' repository.
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
# deb http://extras.ubuntu.com/ubuntu utopic main
# deb-src http://extras.ubuntu.com/ubuntu utopic main
#deb http://download.opensuse.org/repositories/security:/OpenVAS:/UNSTABLE:/v6/Debian_7.0/ ./

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B6D583CCBD33EEB8