[mythtvnz] New install setup - recording problem

Sat Aug 13 08:08:21 BST 2016

Given that you'll rarely (like once or twice a year if that) reboot your
backend
 a small delay is not going to worry you too much is it?

On Sat, Aug 13, 2016 at 3:47 PM, Stephen Worthington <
stephen_agent at jsw.gen.nz> wrote:

> On Sat, 13 Aug 2016 14:42:24 +1200, you wrote:
>
> >On Sat, 13 Aug 2016 14:33:22 +1200, Stephen Worthington
> ><stephen_agent at jsw.gen.nz> wrote:
> >
> >> On Sat, 13 Aug 2016 09:51:21 +1200, you wrote:
> >>
> >>> On Fri, 12 Aug 2016 21:18:09 +1200, Stephen Worthington
> >>> <stephen_agent at jsw.gen.nz> wrote:
> >>>
> >>>> On Fri, 12 Aug 2016 14:25:25 +1200, you wrote:
> >>>>
> >>>>>> Modifying Systemd_mythbackend_Configuration looks daunting.
> >>>>>
> >>>>> I am sure we can work it out - I will fire up my 16.04 test box and
> >>>>> see how it works.
> >>>>
> >>>> I have done some experimenting on my test box now, and I have some
> >>>> config files that should work to make systemd wait for the HVR-2200
> >>>> tuners before starting mythbackend.
> >>>>
> >>>> First, you need to tie down the tuner numbers so that the HVR-2200
> >>>> tuners are always /dev/dvb/adapter0 and /dev/dvb/adapter1.  Create
> >>>> this file (the name does not matter, but the .conf does):
> >>>>
> >>>> /etc/modprobe.d/options-dvb.conf
> >>>>
> >>>> and put these two lines in it:
> >>>>
> >>>> #Set adapter numbers for Hauppauge HVR-2200 dual tuner (DVB-T tuners
> >>>> only).
> >>>> options saa7164 adapter_nr=0,1
> >>>>
> >>>> Then add the new systemd "drop-in" override file.  First create a new
> >>>> directory:
> >>>>
> >>>> sudo mkdir /etc/systemd/system/mythtv-backend.service.d
> >>>>
> >>>> Then in that directory, create a new file mythtv-backend-override.conf
> >>>> (again, the name does not matter but the .conf does).  In that file,
> >>>> put the following five lines:
> >>>>
> >>>> [Unit]
> >>>> Wants=dev-dvb-adapter0-frontend0.device
> >>>> Wants=dev-dvb-adapter1-frontend0.device
> >>>> After=dev-dvb-adapter0-frontend0.device
> >>>> After=dev-dvb-adapter1-frontend0.device
> >>>>
> >>>> That causes systemd to wait until /dev/dvb/adapter0/frontend0 and
> >>>> /dev/dvb/adapter1/frontend0 both exist before starting mythbackend. If
> >>>> either device does not exist, systemd will eventually timeout waiting
> >>>> for the devices to appear and then start mythbackend anyway, but the
> >>>> timeout is quite long.  I am just guessing, but it seemed like about
> >>>> 60 seconds.
> >>>>
> >>>
> >>> Ok, that seems to work well.I have rebooted a few times and can tune
> >>> live
> >>> tv now.
> >>> Thanks for doing the tests on those mods.I had to call the file in
> >>> mythtv-backend.service.d mythtv_backend_override.conf as I could not
> >>> save
> >>> the file with dashes in the file name.
> >>
> >> That will just be a limitation of the program you used to edit the
> >> file - dashes are valid in Linux file names, but not all software
> >
> >I tried gedit and nano both objected.Not to worry ,it's ok as is.
> >
> >> understands that.
> >>
> >>> I will add the HDHR tuners now and see if they still have problems.
> >>> Then look to see why my xmltv script isn't populating the guide.I am
> >>> getting
> >>> "Unknown xmltv channel identifier: tv2-plus1.freeviewnz.tv - Skipping
> >>> channel." for all channels but it was working before.
> >>
> >> Do you have the <source name>.xmltv file in /home/<mythtv
> >> user>/.mythtv?  If you do not have a "channel" line in the .xmltv file
> >> for a channel, that is the error message you get.  This is what I have
> >> in my /home/stephen/.mythtv/FreeviewHD.xmltv file:
> >>
> >> channel=tv1.freeviewnz.tv
> >> channel=tv2.freeviewnz.tv
> >> channel=tv3.freeviewnz.tv
> >> channel=bravo.freeviewnz.tv
> >> channel=maori-tv.freeviewnz.tv
> >> channel=tv1-plus1.freeviewnz.tv
> >> channel=tv2-plus1.freeviewnz.tv
> >> channel=tv3-plus1.freeviewnz.tv
> >> channel=bravo-plus1.freeviewnz.tv
> >> channel=duke.freeviewnz.tv
> >> channel=edge-tv.freeviewnz.tv
> >> channel=prime.freeviewnz.tv
> >> channel=choice.freeviewnz.tv
> >> channel=hgtv.freeviewnz.tv
> >> channel=shopping-channel.freeviewnz.tv
> >> channel=parliament.freeviewnz.tv
> >> channel=hope-channel.freeviewnz.tv
> >> channel=fashiontv.freeviewnz.tv
> >> channel=aljazeera.freeviewnz.tv
> >> channel=te-reo.freeviewnz.tv
> >> channel!shine.freeviewnz.tv
> >> channel=firstlight.freeviewnz.tv
> >> channel=sommet-sports.freeviewnz.tv
> >> channel=tvsn-shopping-channel.freeviewnz.tv
> >> channel=chinese-tv8.freeviewnz.tv
> >> channel=tv33.freeviewnz.tv
> >> channel=yes-shop.freeviewnz.tv
> >> channel=apna.freeviewnz.tv
> >> channel=rnz-national.freeviewnz.tv
> >> channel=rnz-concert.freeviewnz.tv
> >> channel=basefm.freeviewnz.tv
> >>
> >>> Cheers
> >
> >I don't appear to have freeview.xmltv in /home/<mythtv> user>/.mythtv in
> >either 12.04 or 16.04 so I don't know why 12.04 works.
> >I'll create the file.
>
> The <mythtv user> bit in the file path is a placeholder for whatever
> user name you use that runs mythfrontend.  Mythfilldatabase, in my
> system, is run by that user.  I do not use the standard system for
> running mythfilldatabase though, so I am not entirely sure if the
> .xmltv file needs to be in /home/mythtv/.mythtv (if mythfilldatabase
> is run by user mythtv) or in /home/<mythtv user>/.mythtv (if it is run
> by the user that runs mythfrontend).  To be safe, I think it should
> probably be put in /home/mythtv/.mythtv, and then these commands used
> to put a link to it under the mythfrontend user:
>
> cd /home/<mythtv user>.mythtv
> ln -s /home/mythtv/.mythtv/<your .xmltv file>.xmltv
>
> The name used for the .xmltv file needs to be the name used for
> defining the MythTV "source", with the .xmltv extension added.  My
> source is "FreeviewHD" for my DVB-T channels and "SkyNZ-Digital" for
> my DVB-S Sky channels.  So I have two .xmltv files:
>
>   /home/stephen/.mythtv/FreeviewHD.xmltv
>   /home/stephen/.mythtv/SkyNZ-Digital.xmltv
>
> The case of the filename must match.
>
> In your case, if you are doing your EPG the same way in 12.04 and
> 16.04, you should already have the files in your 12.04 setup in the
> right place, so the simple thing to do is to just copy them from there
> to the same place in your 16.04 system.
>
> The channels in the .xmltv files vary depending on what is available
> in each part of the country, so just copying mine would not work
> completely.  And every time a new channel appears or one is renamed or
> disappears, you have to make the corresponding change in your .xmltv
> files manually, unless you completely delete all your channels and set
> them up from scratch again (not recommended).  The tv_grab_nz-py EPG
> grabber does not have the ability to modify the .xmltv files, but
> IIRC, it can create them on initial setup.  But it is a long time
> since I used tv_grab_nz-py like that, as I do my channel setup using
> other means, so I may be wrong about that.
>
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