Editer le fichier /etc/apt/sources.list:
sudo nano /etc/apt/sources.listCommenter les lignes commençant par
deb http://security.debian.org et
deb-src http://security.debian.org/
Rajouter les lignes suivantes (d’après https://wiki.debian.org/fr/SourcesList).
deb http://deb.debian.org/debian/ bullseye main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye main contrib non-free
deb http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ bullseye-security main contrib non-free
deb http://deb.debian.org/debian/ bullseye-updates main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye-updates main contrib non-freeLes paquets non-free sont les paquets non libres de
droits intellectuels.
Avant de continuer, vérifier que le nom de code dans le fichier
sources.list correspond à celui de la version
installée.
sed# sed 's+http://deb.debian.org/debian+http://ftp.univ-pau.fr/linux/mirrors/debian+g' sources.list.debian
deb http://ftp.univ-pau.fr/linux/mirrors/debian/ buster main contrib non-free
deb-src http://ftp.univ-pau.fr/linux/mirrors/debian/ buster main contrib non-free
deb http://ftp.univ-pau.fr/linux/mirrors/debian-security/ buster-security main contrib non-free
deb-src http://ftp.univ-pau.fr/linux/mirrors/debian-security/ buster-security main contrib non-free
deb http://ftp.univ-pau.fr/linux/mirrors/debian/ buster-updates main contrib non-free
deb-src http://ftp.univ-pau.fr/linux/mirrors/debian/ buster-updates main contrib non-free# cat sources.list.debian
deb http://deb.debian.org/debian/ buster main contrib non-free
deb-src http://deb.debian.org/debian/ buster main contrib non-free
deb http://deb.debian.org/debian-security/ buster-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ buster-security main contrib non-free
deb http://deb.debian.org/debian/ buster-updates main contrib non-free
deb-src http://deb.debian.org/debian/ buster-updates main contrib non-free
root@debian:~# cat sources.list.debian > sources.list.pau
root@debian:~# cat sources.list.pau
deb http://deb.debian.org/debian/ buster main contrib non-free
deb-src http://deb.debian.org/debian/ buster main contrib non-free
deb http://deb.debian.org/debian-security/ buster-security main contrib non-free
deb-src http://deb.debian.org/debian-security/ buster-security main contrib non-free
deb http://deb.debian.org/debian/ buster-updates main contrib non-free
deb-src http://deb.debian.org/debian/ buster-updates main contrib non-free
root@debian:~#sed -i.bak 's+http://deb.debian.org/debian+http://ftp.univ-pau.fr/linux/mirrors/debian+g' sources.list.debiandpkg-query -l | lessdpkg-query -f '${binary:Package}\n' -W > installed-packages.txtPuis pour réinstaller tous les paquets d’un coup:
cat installed-packages.txt | xargs echo apt installVoir le chapitre consacré à xargs
apt install apt-file
apt-file update
apt-file list cmatrixupdates - How to prevent updating of a specific package? - Ask Ubuntu