Hi, Thanks for the quick follow-up.
Michael Biebl writes: > Control: tags -1 + moreinfo > >> I have set up unattended-upgrades to reboot my machine at 04:00 when >> necessary. Internally, unattended-upgrades runs >> >> /sbin/shutdown -r 04:00 >> >> trying to achieve this. This fails as evidenced by these (dated) log >> messages >> >> Apr 25 06:55:18 easy apt.systemd.daily[38369]: Found >> /var/run/reboot-required, rebooting >> Apr 25 06:55:18 easy apt.systemd.daily[38369]: Failed to connect to bus: >> No such file or directory > > What's the output of > systemctl status dbus.socket dbus.service systemd-logind.service $ sudo systemctl status dbus.socket dbus.service systemd-logind.service Unit dbus.socket could not be found. Unit dbus.service could not be found. * systemd-logind.service - Login Service Loaded: loaded (/lib/systemd/system/systemd-logind.service; static; vendor preset: enabled) Active: inactive (dead) Condition: start condition failed at Fri 2018-05-11 04:00:25 JST; 10h ago `- ConditionPathExists=/lib/systemd/system/dbus.service was not met Docs: man:systemd-logind.service(8) man:logind.conf(5) http://www.freedesktop.org/wiki/Software/systemd/logind http://www.freedesktop.org/wiki/Software/systemd/multiseat Yes, I don't have dbus installed. Nothing I have installed has a dependency on it that is Depends: or more important. I don't install Recommends: and actively remove them unless other installed packages declare a (Pre-)Depends: Based on my understanding of the relevant section[1] in the Debian Policy, I would argue that systemd-sysv needs a Depends: dbus. [1]: https://www.debian.org/doc/debian-policy/#binary-dependencies-depends-recommends-suggests-enhances-pre-depends The Recommends: that systemd declares looks fine as I have not observed any other breakage. FTR, after I install dbus, I get $ sudo shutdown -r 04:00 Shutdown scheduled for Sat 2018-05-12 04:00:00 JST, use 'shutdown -c' to cancel. Hope this helps, -- Olaf Meeuwissen, LPIC-2 FLOSS Engineer -- EPSON AVASYS CORPORATION Free Software Foundation Associate Member since 2004-01-27 Support Free Software https://my.fsf.org/donate Join the Free Software Foundation https://my.fsf.org/join