On 2022-01-24 23:03, Gareth Evans wrote: > On Tue 25 Jan 2022, at 03:28, Greg Wooledge <greg@wooledge.org> wrote: >> On Tue, Jan 25, 2022 at 03:06:00AM +0000, Gareth Evans wrote: >>> On Tue 25 Jan 2022, at 03:02, Gareth Evans <donotspam@fastmail.fm> wrote: >>>> On Tue 25 Jan 2022, at 02:54, Greg Wooledge <greg@wooledge.org> wrote: >>>>> 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? >>>> >>>> Thanks, yes: >>>> >>>> $ sudo cat /usr/lib/tmpfiles.d/systemd.conf | grep utmp >>>> F! /run/utmp 0664 root utmp - >>> >>> And fwiw (from a comment in the link you provided) >>> >>> $ sudo journalctl -b _COMM=systemd-tmpfiles >>> -- Journal begins at Sat 2021-08-21 14:27:06 BST, ends at Tue 2022-01-25 03:04:> >>> -- No entries -- >> >> Next thing to check seems to be: >> >> systemctl status systemd-tmpfiles-setup.service > > Aha... > > systemd-tmpfiles-setup.service - Create Volatile Files and Directories > Loaded: loaded (/lib/systemd/system/systemd-tmpfiles-setup.service; static) > Active: active (exited) since Tue 2022-01-25 01:46:52 GMT; 1h 53min ago > Docs: man:tmpfiles.d(5) > man:systemd-tmpfiles(8) > Process: 1340 ExecStart=systemd-tmpfiles --create --remove --boot --exclude-prefix=/dev (code=exited, status=73) > Main PID: 1340 (code=exited, status=73) > CPU: 20ms > > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal/7f684579096949909ba2bfac31e8423e. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal/7f684579096949909ba2bfac31e8423e. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal/7f684579096949909ba2bfac31e8423e. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /run during canonicalization of /run/log/journal. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /run during canonicalization of /run/log/journal. > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal/7f684579096949909ba2bfac31e8423e/sy> > Jan 25 01:46:52 qwerty systemd-tmpfiles[1340]: Detected unsafe path transition / → /var during canonicalization of /var/log/journal/7f684579096949909ba2bfac31e8423e/sy> > Jan 25 01:46:52 qwerty systemd[1]: Finished Create Volatile Files and Directories. > > Googling "Detected unsafe path transition during canonicalization" led me to > > https://bbs.archlinux.org/viewtopic.php?id=260924 > > where a user sees this error because / is owned by the user rather than root. > > Lo and behold > > $ stat / > > shows this is what has somehow happened. > > $ sudo chown root:root / > > solves the disappearing /var/run/utmp problem (and fixes who/users) > > There is nothing in bash history to suggest I did this - can/should it happen any other way? No one other than you know the whole story behind what happened with your computer. Is it a new clean install How did you partition the hard drive etc.. > > Thanks very much for your help Greg. > > Gareth > > >> >> Make sure it hasn't been disabled or masked, I suppose. The unit file >> contains this command: >> >> ExecStart=systemd-tmpfiles --create --remove --boot --exclude-prefix=/dev >> >> So, I guess make sure yours has that too. But hopefully you'll discover >> that it's been disabled or something silly like that, and then you can >> just enable it. > -- Polyna-Maude R.-Summerside -Be smart, Be wise, Support opensource development
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