Mises à jour impossibles

Bonsoir, j'utilise ubuntu 12.10

Très bien essaye les manipulations avec le lien que je tes envoyer.

voilà j'ai tapé la première instruction, ci-dessous le résultat:

cat /etc/apt/sources.list
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted
# deb cdrom:[Ubuntu 12.10 _Quantal Quetzal_ - Release i386 (20121017.2)]/ quantal main restricted

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

## Major bug fix updates produced after the final release of the
## distribution.
deb http://fr.archive.ubuntu.com/ubuntu/ quantal-updates main restricted
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal-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://fr.archive.ubuntu.com/ubuntu/ quantal universe
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal universe
deb http://fr.archive.ubuntu.com/ubuntu/ quantal-updates universe
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal-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://fr.archive.ubuntu.com/ubuntu/ quantal multiverse
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal multiverse
deb http://fr.archive.ubuntu.com/ubuntu/ quantal-updates multiverse
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal-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://fr.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse
deb-src http://fr.archive.ubuntu.com/ubuntu/ quantal-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu/ quantal-security main restricted
deb-src http://security.ubuntu.com/ubuntu/ quantal-security main restricted
deb http://security.ubuntu.com/ubuntu/ quantal-security universe
deb-src http://security.ubuntu.com/ubuntu/ quantal-security universe
deb http://security.ubuntu.com/ubuntu/ quantal-security multiverse
deb-src http://security.ubuntu.com/ubuntu/ quantal-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/ quantal partner
# 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/ quantal main
deb-src http://extras.ubuntu.com/ubuntu/ quantal main

# See https://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/ quantal partner
# 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.

ça te dit quelque chose?

oui "le téléchargement des informations du dépôt a échoué" http://forum.ubuntu-fr.org/viewtopic.php?id=1066861 et là http://forum.ubuntu-fr.org/viewtopic.php?pid=5019071

Si je comprends bien il y a un dépôt que je dois supprimer (ou plusieurs) lesquels et comment?

j'utilise ubuntu 12.10

Bonjour voila moi aussi j'ai un problème de mis à jour avec le gestionnaire de mis à jour de ubuntu j'ai la version 12.12 par contre sa fonctionne très bien en line de commende voici les line de commende que j'ai trouver voici la liste :
mis à jour en line de commende : sudo apt-get upgrade
pour la version du noyau : uname -a
pour la version d'ubuntu : cat /etc/issue
bonne chance ps :moi aussi je suis nouveau sur linux allor si vous avez des conseille nésites pas

Merci à toi