Thank you Christian. relating to 2): This is a speciality of "MX Linux". It does not use systemd by default, but ... -Init: SysVinit v: 2.93 runlevel: 5 default: 5 Compilers: gcc: 8.3.0 alt: 8 Shell: bash v: 5.0.3 So I have found ... /etc/default/smartmontools ..., but not /lib/systemd/system/smartd.service >