On Wednesday, 19 July 2017 15:22:33 CEST tomas@tuxteam.de wrote: > echo "APT::Clean-Installed no;" > /etc/apt/apt.conf.d/no-autoclean I've set it to "false", not to "no". The manual says "off", but didn't find any occurence of "on" and "off" in the other apt config files, just "true" or "false". Hope it works: $ cat /etc/apt/apt.conf.d/80autoclean APT::Clean-Installed "false";