Pour ajouter les dépôts Backports à votre configuration apt, éxecutez la ligne de commande :

sudo sh -c 'echo "# Dépôts Backports Edgy Eft
## 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/ edgy-backports main restricted universe multiverse
deb-src http://fr.archive.ubuntu.com/ubuntu/ edgy-backports main restricted universe multiverse" \
      > /etc/apt/sources.list.d/edgy-backports.list'

sudo apt-get update