[mythtvnz] Backend fails to start

[Nick Rout]

On Wed, Apr 18, 2012 at 9:44 AM, Paulgir <paulgir at gmail.com> wrote:
> \> ps -A | grep myth
>
>>
>> ps - show system processes
>>
>> -A all of them
>>
>> | pipe (think of it as filter)
>>
>> grep - search
>>
>> myth - search for the text "myth"
>>
>> In short, list all system processes and filter all those with 'myth'
>> in them - this should catch whether mythbackend (and frontend) are
>> running. An empty output means there are no processes, ie neither
>> mythbackend nor mythfrontend or anything with myth in the name are
>> running.
>>
>> sudo service mythtv-backend start
>>
>> sudo - be the root user
>> service - control a system service
>> mythtv-backend the service you want to control
>> start - well, ya can work that out :)
>>
>> similarly you can stop, restart and other stuff on the service.
>>
>> Nothing in your log file sticks out like a sore thumb, but the logging
>> in 0.25 has changed and I am not entirely sure what to look for.
>>
>> As a broad based  kludge you could delay the start of mythfrontend by
>> inserting a sleep 60 command at the start of the script
>> /usr/bin/mythfrontend, but be aware that this will be clobbered by any
>> upgrades, and you will need to do it again. This will delay the start
>> of mythfrontend by 60 seconds, which should give the backend time to
>> properly start. There are undoubtedly better ways, but that might get
>> you going for now.
>>
> Thanks for explaining   ps -A | grep myth
>
> I tried the mythfrontend start delay suggestion.Although,logically I can't
> see the point
> as mythbackend is not starting regardless.
> If I could find out why I think I would be half way there.

Actually after sending that message last night I rethought it and
realised that it's a delay in starting the backend that is required.
However I see Thomas, who is a mythbuntu developer has suggested in
the forum that you add a delay but that didn't work.



>
> I think it has  to do with upstart:
> http://ubuntuforums.org/showthread.php?t=1959953
> and that I'm not modifying the mythtv-backend.conf file
> correctly.Unfortunately I don't
> know enough to know what needs changing.
>
> The reason myth backend.log has no recent entries since the last reboot is
> obviously
> because mythbackend does not start so there are no entries generated.If I
> manually start
> the BE then entries begin to accumulate.
>

It should still log an entry stating why it failed to start, it makes
me think it's not even getting past the start of the upstart script.

As a further kludgy suggestion, how about adding

 service mythtv-backend start

to the end of /etc/rc.local, which gets executed near the end of the
startup processes. Place it ABOVE the exit 0 line.


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