Re: Journalctl reading incorrect file

[John Lane <systemd@xxxxxxxxxxx>]

I'm still stuck on this one, if anyone can offer any advice I'd really
appreciate it as I'm not sure how to troubleshoot it.

On 15/01/2021 09:17, John Lane wrote:
> Hello,
> 
> I've just set up a new system and have noticed a problem with journalctl
> where it appears to be reading from the incorrect journal. The journal
> is running and I can direct it at the correct file using -D, but I don't
> understand what is happening.
> 
> There is a journal in /run/log/journal which contains events up to the
> switch root. There is a journal in /var/log/journal which contains those
> same events plus the events following the switch root. Events appear to
> be written correctly to /var but journalctl appears to read from /run.
> 
> # ls -ld /{var,run}/log/journal
> drwxr-sr-x+  3 root systemd-journal 80 Jan 14 13:50 /run/log/journal
> drwxr-sr-x+ 18 root systemd-journal 19 Jan 14 13:25 /var/log/journal
> 
> $ journalctl > /tmp/journal
> $ journalctl -D /run/log/journal/e4a4799a826d44d9a6887e24025d54ae >
> /tmp/run_journal
> $ journalctl -D /var/log/journal/9c29e192f536402e9565718f3bb04983 >
> /tmp/log_journal
> 
> $ diff /tmp/journal /tmp/run_journal # same
> $ sdiff /tmp/run_journal /tmp/var_journal # latter is superset
> 
> I have not customised /etc/systemd/journald.conf (it only contains
> commented out settings). I have not done anything different on this
> install vs others except it being on a different device.
> 
> I tried to fix it by restarting systemd-journald but it fails to restart
> (and I can't get a log message to report why). I then have no journal
> until I reboot.
> 
> Not sure what to do to fix this, pointers appreciated...
> 
> Some details:
> 
> # systemctl --version && uname -a
> systemd 247 (247.2-1-arch)
> +PAM +AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP
> +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID
> +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid
> Linux xxxxxx 5.10.6-arch1-1 #1 SMP PREEMPT Sat, 09 Jan 2021 18:22:35
> +0000 x86_64 GNU/Linux
> (Arch Linux)
> 
> 
> 
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