On Tue, Jan 25, 2022 at 01:31:35AM +0000, Gareth Evans wrote: > /var/run$ sudo touch utmp > /var/run$ sudo chown root:utmp utmp > /var/run$ sudo chmod 664 utmp > /var/run$ ls -l utmp > -rw-rw-r-- 1 root utmp 0 Jan 25 00:08 utmp > /var/run$ who > /var/run$ > [logout, login] > /var/run$ ls -l /var/run/utmp > -rw-rw-r-- 1 root utmp 384 Jan 25 00:17 /var/run/utmp > $ who > user tty7 2022-01-25 00:17 (:0) > $ sudo reboot > ... > $ ls -l /var/run/utmp > ls: cannot access '/var/run/utmp': No such file or directory
A google search led me to <https://bugs.archlinux.org/task/47749> which says that the /run/utmp file is supposed to be created by "tmpfiles", specifically by the instructions in the configuration file /usr/lib/tmpfiles.d/systemd.conf . On my system, /usr/lib/tmpfiles.d/systemd.conf contains this line: F! /run/utmp 0664 root utmp - Does your system have this file, and if so, does it contain that line?
