The man page of 'udevadm' states for the 'control' option that a '-x' or a '--exit' may be used. Only the latter workd. Using -x fails like this: control: invalid option -- 'x'
What version of udev do you have installed?
The help output has the correct short option '-e'. % udevadm control --help udevadm control COMMAND Control the udev daemon. -h --help Show this help --version Show package version -e --exit Instruct the daemon to cleanup and exit Would you mind creating an issue upstream please? https://github.com/systemd/systemd/issues I'm also copying the eudev team since they have the same bug.
done so... https://github.com/systemd/systemd/issues/3524
Looks like this has been fixed upstream. We will pick it up in the next release.