On Sun, Jul 19, 2020 at 08:38:22PM +0300, Andrei POPESCU wrote: > The easiest way to find all installed packages from backports is to run > > aptitude search '?narrow(?installed,?archive(backports))' Actually, the *easiest* way to find all packages from backports is to run dpkg -l | grep 'bpo[0-9]'