>Can you document that in /etc/dracut.conf? I find this behaviour not really intuitive.
I agree with you this is far from intuitive and the existence of
/etc/dracut.conf is arguable, but I'd say it's already well documented.
-->
$ cat /etc/dracut.conf
# PUT YOUR CONFIG IN separate files
# in /etc/dracut.conf.d named "<name>.conf"
# SEE man dracut.conf(5) for options
--<