Troquei a fonte de software da universidade local (Erlangen, veja o arquivo sources.list) para a principal alemã. Agora, o Atualizador de Software baixou atualizações, incluindo as atualizações do kernel que o rtmie está falando.
Eu recentemente atualizei do Ubuntu 12.10 para o 13.04 e desde então tenho a strong impressão de que não estou recebendo nenhuma atualização para os pacotes principais.
Na verdade, desde a atualização para o Ubuntu 13.04, há 15 dias atrás, corro sudo apt-get update regularmente e vejo quais pacotes são atualizados. Com base na minha experiência com o Ubuntu, posso dizer que estou recebendo apenas atualizações para PPAs (como Novacut) e repositórios de parceiros (como o Skype). Eu não estou recebendo atualizações para outros pacotes.
Não recebo nenhuma mensagem de erro ao executar sudo apt-get update .
Ainda consigo instalar o que quiser com o Centro de Software ou a linha de comando.
Aqui está o conteúdo de /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
Como posso verificar se a minha impressão está correta? Como corrijo o problema?
Eu tentei excluir o arquivo /etc/apt/sources.list e, em seguida, preenchei-o automaticamente executando uma atualização, mas nada mudou.
Sua sources.list é semelhante à minha (que é uma nova instalação de raring).
De um terminal você pode fazer:
sudo apt-get update | grep principal
Se o apt estiver checando por atualizações no repositório principal, você deverá ver linhas como: "Hit link raring / main Translation-pt" (Translation-pt-pt é um exemplo, deve haver outras linhas como bem)
Se você fizer suas atualizações a partir da linha de comando (sudo apt-get dist-upgrade), você estará de onde elas estão sendo extraídas.
Por exemplo, esta manhã (4 de maio) houve atualizações do kernel do main)