deb http://fr.archive.ubuntu.com/ubuntu/ xenial main restricted universe multiverse
 deb http://fr.archive.ubuntu.com/ubuntu/ xenial-updates main restricted universe multiverse
 deb http://fr.archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse
 deb http://fr.archive.ubuntu.com/ubuntu/ xenial-proposed main restricted universe multiverse
 deb http://security.ubuntu.com/ubuntu/ xenial-security main restricted universe multiverse
 deb http://archive.canonical.com/ubuntu/ xenial partner
 deb http://extras.ubuntu.com/ubuntu/ xenial main