One of my systems stalls at start-up

[Ed Greshko]

On 09/10/14 20:49, Anders Wegge Keller wrote:
>  Systemd is probably involved, but I rather suspect plymouth to be the real
> culprit. If you have the ability to get to a console (CTRL+ALT+Fn), try
> logging in as root there, and switch to runlevel 3 and back to runlevel 5.
> That does the trick for me.

You may be on to something.....

I don't have the problem that the OP is having.  But I noted that in all my logs, at boot time I get 2 lines which are similar to...

Sep 03 08:52:45 meimei systemd[1]: Received SIGRTMIN+20 from PID 241 (plymouthd).
and
Sep 03 08:53:13 meimei systemd[1]: Received SIGRTMIN+21 from PID 241 (plymouthd).

Which you can see are about 30 seconds apart.  The failure log supplied by the OP had only one line

set 10 05:59:55 Fujiantonio systemd[1]: Received SIGRTMIN+20 from PID 218 (plymouthd).

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