Arf, peux-tu mettre tes retours entre balises code ? -->
https://forum.ubuntu-fr.org/viewtopic.php?id=1614731
Le sources.list n'est pas propre.
on va le corriger :
Passe un
gksudo gedit /etc/apt/sources.list
Si gksu et gedit ne sont pas installés :
sudo apt-get install gksu
sudo apt-get install gedit
Dans le fichier qui s'ouvre, remplace tout par tout ceci :
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://fr.archive.ubuntu.com/ubuntu/ xenial main restricted
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates main restricted
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-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.
deb http://fr.archive.ubuntu.com/ubuntu/ xenial universe
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial universe
deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates universe
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-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/ xenial multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial multiverse
deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-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/ xenial-backports main restricted universe multiverse
# deb-src http://fr.archive.ubuntu.com/ubuntu/ xenial-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 xenial partner
# deb-src http://archive.canonical.com/ubuntu xenial partner
Dans tes PPA tu as getdeb, dangereux et à éradiquer :
sudo rm /etc/apt/sources.list.d/getdeb*
medibuntu est obsolète depuis4/5 ans
sudo rm /etc/apt/sources.list.d/medibuntu*
Puis
sudo apt clean
sudo apt update
sudo apt install -f
sudo apt full-upgrade
sudo apt autoremove --purge
Donne tous les retours.
Pour les extensions tu les trouves en tapant
about:addons
dans la barre de menu de Firefox