I was able to disable journald similar to this:
systemctl stop systemd-journald-dev-log.socket systemd-journald.socket
systemctl mask systemd-journald-dev-log.socket systemd-journald.socket
(I tried to "disable" those services first, but somehow journald got started
anyway on the next reboot).
Configure rsyslog with:
Or with the new configuration format:
I also had to adjust the /dev/log symlink to point to /var/run/systemd/journal/syslog, so
that programs like logger(1) will still work. Added the following to /etc/rc.local (or
wherevery custom startup routines were configured):
ln -svf /var/run/systemd/journal/syslog /dev/log | logger -t "$0"
With all that journald is no longer running and rsyslog still works! :-)