[mythtv-users] Mythweb missing menu items

Stephen Worthington stephen_agent at jsw.gen.nz
Wed Jul 17 13:02:16 UTC 2019

On Wed, 17 Jul 2019 08:52:11 -0400, you wrote:

>> On Jul 17, 2019, at 6:21 AM, Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:
>> On Tue, 16 Jul 2019 21:30:07 +0100, you wrote:
>>> On 16/07/2019 20:26, bhaskins wrote:
>>>> On 7/15/2019 3:59 AM, John Pilkington wrote:
>>>>> On 15/07/2019 03:54, bhaskins wrote:
>>>>>> My (very) old Mythtv backend has just lost it's hard drive so I am 
>>>>>> trying to setup a new I3 box.
>>>>>> My Normal usage is to program shows from my HDHR Prime using Mythweb 
>>>>>> and then use any one of several frontends for playback.
>>>>>> The problem is that the part of Mythweb that show " recorded", 
>>>>>> "manual record", etc is totally missing and it is showing a error 
>>>>>> that the TV is not set up yet. "No TV Configured"
>>>>>> This will be a backend only so I'm confused by this.
>>>>>> Hdhomerunconfig,gui works fine.
>>>>>> What am I missing?
>>>>>> Thanks,
>>>>>>    Bert
>>>>> Backend-only installations have given problems in the (distant) past. 
>>>>> Perhaps install frontend packages?  Or give more details.
>>>>> John P
>>>> The frontend is installed and it can't find any channels either.
>>>> That seems to be the problem, I can't setup any channels and if the 
>>>> starting channel is 0 that of course won't work.
>>>> There seem to be many items missing in setup that were there in previous 
>>>> versions and the online documentation refers to these previous versions.
>>>> Im sorry but I can't remember how I did this last time.
>>>> Thanks,
>>>>   Bert
>>> It looks as if your replies have been off-list.  That's not a good idea 
>>> because I don't use mythweb or networked tuners.  But the list regularly 
>>> has posts with network tuner problems caused, IIUC, by the backend being 
>>> started when the first device comes online instead of waiting until all 
>>> devices are available.  I start the backend and frontend manually - 
>>> which works for me;  others may be able to improve on my guesses.
>>> Cheers,
>>> John
>> If it is the problem where mythbackend starts when the first network
>> interface is up (localhost), but before any other networking is up,
>> the way to tell is to simply restart mytbackend manually.  For Ubuntu:
>> sudo systemctl restart mythtv-backend
>> Doing that starts mythbackend well after all the network interfaces
>> are up and it will then see them and be able to talk to the network
>> tuners.  Mythbackend it getting started earlier due to the system
>> startup working better and faster since systemd.  Each new Ubuntu
>> version is better optimised and 18.04 now starts mythbackend very
>> quickly after localhost is up, unless it is told not to.  And if you
>> have the system on an SSD now, that makes more things start faster in
>> parallel.  So anyone who uses network tuners or external frontends (or
>> anything that uses the network) with mythbackend now needs the fix for
>> this.  There are lots of threads about it.  Here is what I post to
>> tell people how to fix it.
>> =====================================================================
>> The fix is a bit complicated - you have to make a systemd unit that
>> tests for the Ethernet interface actually being up and able to pass
>> traffic, and then have mythbackend wait on that unit before it is
>> started.  The tools to do this are on my web server.  If you are not
>> running a server version of Ubuntu and have not disabled
>> NetworkManager, run the following commands to set it all up.  Watch
>> out for line wrapping - my email client does that with longer lines
>> such as the wget commands, so the wget and the URL after it should be
>> on one line.
>I cheated, and just put a 30 second delay into the service shell script before mythbackend starts, and I have had no problems since.  :-)
>If you choose the simple method above, you may be able to get by with less time.   
>I don’t start and stop the service very often( maybe once a month) so 30 seconds is no big deal.

That sort of simple delay is fine until it isn't any more.  With race
conditions, something will change on you and cause 30 seconds to be
insufficient, such as a disk needing to be fscked.  You really should
fix it properly.  It is not that difficult to do with my step by step

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