[arch-general] mdmonitor.service failed to start

[Bill Sun]

> But the new problem is: Why this service automatically start? I never
> manually enabled mdmonitor, and I cannot find its link in
> /etc/systemd/system/ .
OK, it seems that the unit is somehow a dependence for some other units:
    $ systemctl is-enabled mdmonitor
    static

And I just masked that service to force prevent it from auto start.
Problem 'solved'.

Regards.