[mythtv-users] Starting mythfrontend with systemd?

Darac Marjal mailinglist at darac.org.uk
Thu Oct 5 09:01:59 UTC 2017


On Thu, Oct 05, 2017 at 09:44:23AM +0100, Darac Marjal wrote:
>On Thu, Oct 05, 2017 at 03:08:39AM +0200, Hika van den Hoven wrote:
>>Hoi Ian,
>>
>>Wednesday, October 4, 2017, 11:53:06 PM, you wrote:
>>
>>>Sorry for all the recent posts, but after running MythTV since
>>>2011, the upgrade to 29/16.04 has tossed a few curveballs at me.
>>>Most things have been smooth but there's a few small issues, perhaps
>>>due to the fact that the previous Mythbuntu ISO install handled so many tasks for you.
>>
>>
>>>In order to start the mythfrontend on my combined FE/BE at boot I
>>>added the mythfrontend command to Sessions and Starup. But it's hit
>>>and miss as to whether it starts up before the backend/mysql are
>>>fully up. If it starts before then, even the subsequent retries seem
>>>to be failing the dbawake test, even though mythbackend is running and connected to mysql.
>>
>>
>>>Looking at
>>>https://www.mythtv.org/wiki/Configuring_Frontend#Starting_the_Frontend,
>>>I don't see any mention of scripting the startup. 
>>
>>
>>>Should the Frontend be started with systemd instead and if so is
>>>there a recommended service file that waits for the backend and
>>>mysql to be fully functioning before starting mythfrontend?
>>
>>
>>>Thanks.
>>
>>
>>If you want to be sure the backend is up add a sleep command to your
>>frontend startup script. Like sleep 5 to wait 5 seconds, which should
>>be more then enough.
>
>I hate to be cruel, but it's advice like this which made sysvinit the 
>slow, clunky nightmare that it was. Why five seconds? If the database 
>is ready, why wait? What if the database is doing repairs, will five 
>seconds be enough?
>
>The following should be a suitable start:
>
>	[Unit]
>	Description=the open source DVR, MythTV
>	After=graphical-session.target

Bah. The whole point of this was to wait for the database, wasn't it? 
Add:
	After=mysql.service
>	BindsTo=graphical-session.target
>
>	[Service]
>	Environment=DISPLAY=%i
>	ExecStart=/usr/bin/mythfrontend
>
>	[Install]
>	WantedBy=graphical-session.target
>
>This should start mythtv when you log in (WantedBy) and kill mythtv 
>when you log out (BindsTo). Save this as 
>/etc/systemd/system/mythtv at .service, then run "systemctl enable 
>mythtv@:0.service" for display :0.
>
>All information cadged from 
>https://bitbucket.org/KaiSforza/systemd-user-units/wiki/X-Applications
>
>
>-- 
>For more information, please reread.



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-- 
For more information, please reread.
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