I recently upgraded from Ubuntu 12.10 to 13.04 and since then I have the strong impression that I am not getting any update for the main packages.
In fact, since the upgrade to Ubuntu 13.04 some 15 days ago, I runsudo apt-get update
regularly and look at what packages are updated. Based on my experience with Ubuntu, I can tell I am getting updates only for PPAs (like Novacut) and Partner repositories (like Skype). I am not getting updates for other packages.
I don't get any error message when running sudo apt-get update
.
I am still able to install whatever I want with the Software Center or the command line.
Here is the content of /etc/apt/sources.list
:
# deb cdrom:[Ubuntu 13.04 _Raring Ringtail_ - Alpha amd64 (20130402.1)]/ raring main restricted
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release amd64 (20121017.5)]/ quantal main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://ftp.uni-erlangen.de/mirrors/ubuntu/ raring main restricted universe
## Major bug fix updates produced after the final release of the
## distribution.
deb http://ftp.uni-erlangen.de/mirrors/ubuntu/ raring-updates main restricted universe
## 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.
## 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://ftp.uni-erlangen.de/mirrors/ubuntu/ raring multiverse
deb http://ftp.uni-erlangen.de/mirrors/ubuntu/ raring-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://ftp.uni-erlangen.de/mirrors/ubuntu/ raring-security main restricted universe
deb http://ftp.uni-erlangen.de/mirrors/ubuntu/ raring-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-src http://archive.canonical.com/ubuntu quantal partner
## 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 raring main
# deb-src http://extras.ubuntu.com/ubuntu quantal main
deb http://repository.spotify.com stable non-free #Spotify
# deb http://apt.last.fm/debian raring main #Last.fm disabled on upgrade to raring
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
## Major bug fix updates produced after the final release of the
## distribution.
## 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.
## 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.
## 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.
## 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 raring partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb-src http://extras.ubuntu.com/ubuntu raring main
How can I check whether my impression is correct? How do I correct the problem?
I tried deleting the /etc/apt/sources.list
file and then repopulating it automatically by running an update, but nothing changed.