Jan 04, 2014 Mythtv backend running on a Raspberry Pi. I found that everything installed happily except for Mythweb for some odd. / $ sudo apt-get install mythtv. MythTV / Install / Server / Backend. Install mysql and backend software. Sudo apt-get install mysql-server mythtv-backend. Running mythweb from.
Here is my method for setting up MythTV on Debian 7 (Wheezy). I chose Debian as I found it the most stable Linux distribution and also allowed for a very minimal installation. This is a backend only setup as I use as the frontend on another PC.
Note: The commands below are run as the root user unless specified. I used the network install ISO, set up on a USB stick. During installation I did not choose to install any packages other than SSH.
Sudo Apt-get Install Php5 Libapache2-mod-php5
Login via SSH. I use on my Windows machine. In order to get mythtv-setup to work, you will need to install an X Windows server. In PuTTY, enable X11 forwarding. Enter localhost:0 for the X display location. Make sure Xming is running before connecting. Update /etc/apt/sources.list.
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We need to add the repository at, so MythTV can be installed. Deb wheezy main non-free deb wheezy-backports main. Add non-free to the existing sources as well. This was required to download the firmware for the Sony PlayTV tuner I’m using. Run the following to install the deb-multimedia package source. Apt-get update apt-get install deb-multimedia-keyring apt-get update.
Here I’m installing the firmware for the tuner, as well as ntp client and the X Windows Server. Apt-get install firmware-linux-nonfree xorg ntp.
Install MythTV. We need to install from the Wheezy-Backports repository as the stable one does not have the latest version. Apt-get -t wheezy-backports install mythtv mythweb. I open access to Apache for access to MythWeb on the local subnet. Edit /etc/mythtv/mythweb.conf.
Allow from /24 Where is your LAN IPv4 network address. Restart the Apache server for the above change to take effect. /etc/init.d/apache2 restart. Create MythTV storage directories.
I have a drive mounted to /mnt/storage, and create a directory here called mythtv. Under this I create two directories, one for recorded TV, the other for the live TV buffer. I then give the mythtv user read and write permission on the directories. Cd /mnt/storage mkdir mythtv mkdir mythtv/recordedtv mkdir mythtv/livetv chown mythtv:mythtv recordedtv/ chown mythtv:mythtv livetv/ chmod 755 recordedtv/ chmod 755 livetv/.
Run mythtv-setup as your non-root user. Refer to the MythTV for setup help.
Make sure mythtv-backend is running. You can start the backend like so. /etc/init.d/mythtv-backend start. The MythTV backend should now be ready.
Install MythTV Backend The majority of the rest of the work should be handled by Ubuntu packaging. The backend will need to have mysql-server installed as well as mythtv-backend.
Mythtv-backend doesn't depend on mysql-server since the mysql server can be located elsewhere on your network. Also, if this is a secondary backend, don't install mythtv-database or mysql-server. Just configure this backend to connect to the master backend instead.
Install mysql and backend software. sudo apt-get install mysql-server mythtv-backend mythtv-database. Behind the scenes, a mythtv user will be created in PAM as well as mysql. The database will be installed into mysql and the initial configuration performed. A mythtv group will also be created. Any user that will be configuring mythtv or running mythtv needs to be placed in this group.
You will be asked for the password to the root account of mysql. By default, there is no password. Backend Configuration: mythtv-setup mythtv-setup will not work on the local console, as it requires an X server for graphics, etc. If you must run it from the backend, you will need to install a windows server on the local machine.
This is not recommended, as it is a waste of resources for this machine's given tasks. Run the following command from a remote terminal that is running an X server- being sure to substitute your user name and the correct address of the backend machine: # ssh -X username@192.168.1.103 /usr/bin/mythtv-setup. The first screen of the General configuration deals with IP addresses of the backend system that you're running mythtv-setup on. If you are setting up only one backend/frontend installation, then the default values are fine and you can move to the next page by pressing the enter. If you need to move around the screen, use the arrow keys to move focus between settings. The default value shown on install will be 127.0.0.1, which is the internal loopback for the local machine. If you plan on deploying multiple backends, running mythweb from another computer, or if your backend is on one system and you're running the frontend on another machine then do not use the '127.0.0.1' IP address.
Set this to the ip address of this backend as recognized by other machines on your network. If you are using a router on your network that only hands out dynamic addresses, you might consider setting up this machine with a static IP address instead. NOTE: If you modify the 127.0.0.1 address and use a 'real' IP address, you must use real IP addresses in both fields, otherwise your frontend machines will generate 'Unexpected response to MYTHPROTOVERSION' errors.
Changing any of the port settings is very strongly discouraged. (If you do accidentally change them, the defaults are 6543 for the master/backend server, and 6544 for the HTTP requests) Once you're satisfied with the values, move the focus down to Next and hit Enter. The next screen details the Host-specific Backend setup. This is where you will set the specific directory path for this particular backend.
As long as you setup a separate partition for /var/lib during the initial setup, the default option here - /var/lib/mythtv will work fine. If you setup a different mount point or won't be recording with this machine, be sure to set this accordingly. (Also, if you used a non-default location, be sure and set the ownership and permissions to match /var/lib/mythtv.) If for some reason you chose a file system other then XFS or JFS for this partition, choose to delete the files slowly. This will avoid some nasty bugs related to using ReiserFS or ext3.
The Global Backend Setup screen will change settings that affect all backends. Your TV standard should be determined based on your locale.
US users should choose NTSC. European users should chose PAL The VBI Format is used for closed captioning. The channel frequency table is also based on your locale. US and Canadian users using can skip the time offset for xmltv listings. International users will need to set this appropriately so that their data matches up at the correct time.
The EIT scanner is used to gather data on the fly. If you have a DVB based source or a source providing this data, you will configure it here The Shutdown/Wakeup options are used for suspending or shutting down the backend server when it has been idle for the set limit. You can configure the master and/or secondary backend(s) to go into a sleep, suspend, or shutdown mode when not in use- depending on the capabilities of your motherboard. There are different methods you can use to accomplish this. A tutorial on ACPI wakeup/shutdown can be found on the page. You should complete MythTV installation and ensure the backend is properly functioning before trying to set up this function.
If you only have one backend, the default values are fine and you can move to the next page by pressing the enter. Setting up more than one backend is beyond the scope of this guide - see the mythtv documentation. Is another method of configuring secondary backends to wakeup. If you only have one backend, move to the next page. Setting up multiple backends is beyond the scope of this guide - see the mythtv documentation.
The Host Specific Job Queue sets up the types of jobs that are allowed to run on this machine. If you have multiple backends, you can configure certain backends to only handle particular types of jobs. This is especially useful if some are much more underpowered then others. It isn't recommended to have more then 2 simultaneous jobs running on any backend at any given time.
The default job queue frequency of 60 seconds is adequate and doesn't need to be changed typically. Unless this backend is dedicated to only Transcoding/Commercial flagging jobs, don't change the CPU usage. Anything set higher then 'Low' may jeopardize the ability to record programs due to being starved for IO/CPU usage. The Global Specific Job Queue sets up things affecting any and all backends on a mythtv network. If you don't check 'Run Jobs only on original recording host', each of the jobs will be evenly distributed against possible backends. This will lessen the load on each machine.
A decently powered backend with hardware encoding cards (1Ghz+) should be able to flag commercials at the same time as the recording is going. This helps if you ever plan to time shift your recording viewing by 10 or 20 minutes and want to have the commercials flagged as you watch.
Typically you won't want to run your transcode jobs before commercial flagging. The idea should be that you will flag commercials, verify they are right and manually queue them up to be transcoded and removed. If you have a particular reason to transcode first, check this box. If you set up the backend to save the original files after transcoding, these will not be automatically deleted, but rather fill up your recordings directory with.old files.
You will have to manually go in there and delete them to free up recording space as necessary. Thee Job Queue page provides an area to add your own scripts to perform on recordings.
Some ideas for additional things can range from scp'ing a recording somewhere, transcoding it to fit on an ipod and copying it to a directory, or running it through a denoising filter. Capture Cards The capture cards section will list all capture cards setup locally on this backend.
The initial capture cards page will list all cards in this backend. Choose 'New Capture Card' to begin and add your tuner(s) If you need to reset the order of the tuners recognized, you can either delete these capture cards, or all capture cards in the mythtv network from this screen.
When choosing a capture source, it's important to choose the correct type A very common error is when choosing the Hauppauge PVR Cards. There is an option for MPEG-2 Encoder Card (PVR-X50, PVR-500) as well as for standard V4L card. Be sure to choose the MPEG-2 encoder option here if you use a Hauppauge card. Each of the different types of sources has several options available to it. If you are confused about any of the options, see the mythtv documentation, mailing list,. If you are configuring a firewire connection, settings can be found on the Video Sources Video sources section will list all video sources in use for the mythtv database.
The video sources will be configured to connect to the listing service you are using- either Data-Direct or XMLTV. Video Sources is where to configure your program listing services Provide your video source with a logical name here. Its a good idea to provide detail now, because later you may end up adding more tuners, digital cable, satellite, etc:) If you are in North America, choose North America (.org). Anywhere else will need to use XMLTV setup. For, enter the username and password you obtained during registration. Retrieve the lineup and choose your option.
If this input has a different frequency table then the rest of your global settings, set the particular setting here. Press Escape to go back to the main page from here. Input Connections.
The input connections page allows you assign any Video Sources to Inputs on your capture sources before. Choose the particular input you will need to assign and press enter Again, it's a good idea to provide a name for your Input here.
Later on, if you have a tuner not working, it's easier to debug if it says 'Digital Cable' in the frontend and then doesn't work. Choose the Video source associated with the input here. If you need to use an external channel changer script (firewire, serial, IR), you will need to enter the name of the binary/script that needs to be launched here. See for more information.
If you are using a static channel listing, fetch channels from your listings source. If you are using something that scans on the fly via EIT or OTA HD, scan for the initial channels. Channel Editor The channel editor isn't necessary for the inital setup. You can safely ignore it for now, but remember to come here if you need to modify transports, change channel numbers, or delete channels.