Problèmes d'instalations de paquets

Bonjour tout le monde. Voila, en fait, j'ai linux depuis peu , et les problèmes commencent déja à venir :
par exemple : je vais dans "applications"-->"Ajouter/supprimer" et puis je sélectionne une application (n'ilmporte laquelle) et linux me demande de recharger la page. Alors je recharge la page, et lorsque je re-sélectionne l'application, il me re-demmande de recharger la page, et ceci indéfiniment . J'essaie alors une autre solution, je passe par le terminal. Je tappe "sudo apt-get install amsn" par exemple, et il m'affiche :
vince@vince-desktop:~$ sudo apt-get install amsn
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances
Lecture des informations d'état... Fait
E: Impossible de trouver le paquet amsn

Je pensais alors que c'était juste amsn qui ne marchait pas, alors j'ai pensé a WINE.
J'ai donc tappé : "sudo apt-get install wine", et le terminal m'affiche :
vince@vince-desktop:~$ sudo apt-get install wine
Lecture des listes de paquets... Fait
Construction de l'arbre des dépendances
Lecture des informations d'état... Fait
E: Impossible de trouver le paquet wine
(découragement...)
Quelqu'un serait assez bon pour m'aider???

Fait un
cat /etc/apt/sources.list

Et indique moi ce que la commande te renvoi, il te manque surement des dépots te permettant d'avoir l'ensemble des programmes

JE suppose que tu n'as pas décommenté l'ensemble des dépots de ta distrib
Ca va te prendre 5minutes a faire.

Merci de m'aider si rapidement ^^

alors, j'ai tapé "cat /etc/apt/sources.list" et il m'a affiché
vince@vince-desktop:~$ cat /etc/apt/sources.list
deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

# Line commented out by installer because it failed to verify:
#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy main restricted
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
# Line commented out by installer because it failed to verify:


#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted

## 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
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
# Line commented out by installer because it failed to verify:
#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy universe
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy universe
# Line commented out by installer because it failed to verify:
#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates universe
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-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.
# Line commented out by installer because it failed to verify:
#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy multiverse
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy multiverse
# Line commented out by installer because it failed to verify:
#deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates multiverse
# Line commented out by installer because it failed to verify:
#deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## 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/ gutsy-backports main restricted universe multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe 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 gutsy partner
# deb-src http://archive.canonical.com/ubuntu gutsy partner

# Line commented out by installer because it failed to verify:
#deb http://security.ubuntu.com/ubuntu gutsy-security main restricted
# Line commented out by installer because it failed to verify:
#deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted
# Line commented out by installer because it failed to verify:
#deb http://security.ubuntu.com/ubuntu gutsy-security universe
# Line commented out by installer because it failed to verify:
#deb-src http://security.ubuntu.com/ubuntu gutsy-security universe
# Line commented out by installer because it failed to verify:
#deb http://security.ubuntu.com/ubuntu gutsy-security multiverse
# Line commented out by installer because it failed to verify:
#deb-src http://security.ubuntu.com/ubuntu gutsy-security multiverse

PS : ca revient a quoi de décommenter??

Ce message a été modifié par vince8115 - vendredi 18 avril 2008 à 14:28.

Actuellement tu utilises comme dépot
deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted

En gros c'est ton CD.
Pour voir tous les packages, il te faut bien entendu une connexion Internet, et il faut que tu edites ton fichier avec nano ou vi, par exemple, puis
que tu enleves les # devant les différents dépots:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy main restricted
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted
...

Les deb-src ne te seront pas forcément utiles.

Pour l'instant tu ne peux installer des logiciels qu'à partir du CD de ta Ubuntu, car la ligne n'est pas commentée, c'est-à dire qu'elle n'a pas de "#" devant.

Je décommenterais celles-là :


vince@vince-desktop:~$ cat /etc/apt/sources.list
deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

# Line commented out by installer because it failed to verify:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy main restricted
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
# Line commented out by installer because it failed to verify:


deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted

## 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
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
# Line commented out by installer because it failed to verify:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy universe
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy universe
# Line commented out by installer because it failed to verify:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates universe
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-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.
# Line commented out by installer because it failed to verify:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy multiverse
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy multiverse
# Line commented out by installer because it failed to verify:
deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates multiverse
# Line commented out by installer because it failed to verify:
deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## 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/ gutsy-backports main restricted universe multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe 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 gutsy partner
# deb-src http://archive.canonical.com/ubuntu gutsy partner

# Line commented out by installer because it failed to verify:
deb http://security.ubuntu.com/ubuntu gutsy-security main restricted
# Line commented out by installer because it failed to verify:
deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted
# Line commented out by installer because it failed to verify:
deb http://security.ubuntu.com/ubuntu gutsy-security universe
# Line commented out by installer because it failed to verify:
deb-src http://security.ubuntu.com/ubuntu gutsy-security universe
# Line commented out by installer because it failed to verify:
deb http://security.ubuntu.com/ubuntu gutsy-security multiverse
# Line commented out by installer because it failed to verify:
deb-src http://security.ubuntu.com/ubuntu gutsy-security multiverse

Voilà, à corriger si j'ai fais des erreurs, car je ne suis pas sous Ubuntu...

Ce message a été modifié par Mr_Blonde - vendredi 18 avril 2008 à 14:53.

Merci pour votre aide ^^ je fais ce que vous m'avez proposé. .. je vous en tiendrais informé...
edit

WAAAHOUUUUU!!! Ca marche! Félicitation tout le monde... j'y aurait jamais pensé^^. Merci mille fois

Ce message a été modifié par vince8115 - vendredi 18 avril 2008 à 15:08.

de rien

Tu peux aussi décommenter

# deb http://fr.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe 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 gutsy partner
# deb-src http://archive.canonical.com/ubuntu gutsy partner

'tain c'est cool la solidarité

Bienvenue dans le monde de GNU/Linux et du libre

waa c'est compliqué l'informatique!!!