Plymouth does not show splash

[telphan]

@telphan commented on Tue Aug 02 2016

This was introduced after we have passed console=null to our kernel.
The issue here is a missing dependency on systemd-udev-settle. i.e. the trigger on the graphic and tty subsystems are not settled.
Also plymouth was depending on the console option to determine the output interface a --tty option should be passed to the daemon.