TrueNAS Scale - NextPVR

[asw2012]

Hello,

I have been trying to use the NextPVR app/docker in TrueNAS Scale so I can ditch the install on a separate PC I use just for NextPVR.

I've been able to create a VM, install win10, install NextPVR - and install the Hauppauge PCI tuner by using the pci passthrough to the VM.  The NextPVR install can find the tuner, and can find the local channels.

Now, pertaining to the app / docker install directly on TrueNAS Scale, NextPVR can't seem to find the tuner.  I would like some insight to get this to work.

thanks.

[mvallevand]

Docker instances don't use virtualized PCI you need to pass through the /dev/dvb device from the host and the Docker uses it directly. Once you have the host working update the command line with

--device /dev/dvb:/dev/dvb

Martin

[asw2012]

Ok, thanks for the reply! Same situation as the VM, needs to be passed through to the Docker.

Now, about passing it through to the Docker, that's one thing I do not know how to do. The VM, it's pretty easy to find and choose the proper PCI device to pass through in the GUI.

[mvallevand]

I would just pass the whole /dev/dvb folder, all adapters will be there. You may need to use udev_rules to make sure your devices get the same id.

Martin

[asw2012]

Hi again thanks for the help, I do not use command lines but once every 5-6 months.  Can you please spell out exactly what I am needing to do....

I have the PCI ID as pci_0000_06_00_0 (as I see in the TrueNAS GUI)

Below is what I see after I use the lspci -v command in the TrueNAS Scale shell.

06:00.0 Multimedia video controller: Conexant Systems, Inc. CX23887/8 PCIe Broadcast Audio and Video Decoder with 3D Comb (rev 04)
        Subsystem: Hauppauge computer works Inc. WinTV HVR-1250
        Flags: bus master, fast devsel, latency 0, IRQ 17, IOMMU group 3
        Memory at fe600000 (64-bit, non-prefetchable) [size=2M]
        Capabilities: [40] Express Endpoint, MSI 00
        Capabilities: [80] Power Management version 3
        Capabilities: [90] Vital Product Data
        Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [200] Virtual Channel
        Kernel driver in use: cx23885
        Kernel modules: cx23885

[mvallevand]

What you want to check on the host is if it installed that device

ls /dev/dvb

If you see adapter0 etc then all is good and you just need to add the command I gave you to your Docker startup. It looks like your kernel is supporting it.

Martin

[sub]

Hi again thanks for the help, I do not use command lines but once every 5-6 months.  Can you please spell out exactly what I am needing to do....

You'd typically do something like the following. From a shell on your TrueNAS, check it can see your device:

ls -l /dev/dvb

If it can, then you can share device with your NextPVR docker instance, by adding the following docker command line parameter when starting the NextPVR container:

--device /dev/dvb:/dev/dvb

(ie, this is saying share /dev/dvb from the host, as /dev/dvb within the container)

[asw2012]

You'd typically do something like the following. From a shell on your TrueNAS, check it can see your device:

ls -l /dev/dvb

If it can, then you can share device with your NextPVR docker instance, by adding the following docker command line parameter when starting the NextPVR container:

--device /dev/dvb:/dev/dvb

(ie, this is saying share /dev/dvb from the host, as /dev/dvb within the container)

Hi, yep i can see:

Code:

# ls -l /dev/dvb
total 0
drwxr-xr-x 2 root root 120 Aug 31 08:47 adapter0

Now, I am trying to figure out how to insert into the docker startup.  There's no clear "startup parameters" (see picture ... it is "Extra Args?"

Code:

--device /dev/dvb:/dev/dvb

[mvallevand]

I would click it and if a text edit box opens up enter it.

Martin

[asw2012]

Well, I've entered under extra args, and stopped and started the docker, still cannot see the card in the docker app.

+ I've gone to the TrueNAS Forums, seeing if i can get some help there as this is more of a TrueNAS Scale issue then NextPVR. But, of course thank you much for the help so far.