Linux (Debian 9.13 on armv7) Cannot start NextPVR Service

[Ziginox]

When I attempt to start the NextPVR service, using "service nextpvr start" I get this error in syslog:

Code:

Apr  3 23:55:36 debian systemd[1]: Starting NextPVRServer...
Apr  3 23:55:38 debian server.sh[6346]: Starting server../opt/nextpvr/shell/server.sh: line 23:  6348 Illegal instruction     /opt/dotnet/dotnet /opt/nextpvr/system/NextPVRServer.dll > /dev/null
Apr  3 23:55:38 debian server.sh[6346]: Done. PID=
Apr  3 23:55:38 debian systemd[1]: Started NextPVRServer.

Running the command manually gives the same "Illegal Instruction" error
The command:

Code:

/opt/dotnet/dotnet /opt/nextpvr/system/NextPVRServer.dll

And finally, in case it is relevant, the output of uname -a

Code:

Linux debian 4.9.0-15-armmp #1 SMP Debian 4.9.258-1 (2021-03-08) armv7l GNU/Linux

Will NextPVR work on this architecture? I see it runs on the RPi, so it seems somewhat agnostic, correct? Unfortunately, these are the only logs I have.
The installation was done through the official .deb package, as listed here: https://forums.nextpvr.com/showthread.php?tid=59390
The hardware is a repurposed Seagate Personal Cloud NAS.

[mvallevand]

If you run /opt/dotnet/dotnet do you get that message? If not maybe run

Then check dmesg and journctl for error messages. You might need to confirm you have all the libraries required here https://docs.microsoft.com/en-us/dotnet/...nux-debian

Finally try

sudo apt-get update --fix-missing
sudo apt-get install -f

In case of install errors you didn't notice.

Martin

[Ziginox]

Running /opt/dotnet/dotnet by itself seems to work okay, and prints out the usage page. If I try some of the arguments presented, they seem to work:

Code:

ziginox@debian:~$ /opt/dotnet/dotnet --list-runtimes
Microsoft.AspNetCore.App 3.1.13 [/opt/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 3.1.13 [/opt/dotnet/shared/Microsoft.NETCore.App]

Using the two apt-get commands you mentioned, the first one successfully updated the package lists. The second also ran successfully, but the final output was:
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Just to check, I re-downloaded the .deb file and installed again, and still have the same result.

[mvallevand]

What about dmesg and journalctl?

Martin

[Ziginox]

What about dmesg and journalctl?

Martin

Regarding dmesg, I'm not seeing anything printed after attempting to start nextpvr-service, the last messages were from it detecting the USB TV tuner I connected. As for journalctl, the only entries are basically the same as syslog:

Code:

Apr 06 20:32:07 debian systemd[1]: Starting NextPVRServer...
Apr 06 20:32:09 debian server.sh[3928]: Starting server../opt/nextpvr/shell/server.sh: line 23:  3930 Illegal instruction     /opt/dotnet/dotnet /opt/nextpvr/system/NextPVRServer.dll > /dev/null
Apr 06 20:32:09 debian server.sh[3928]: Done. PID=
Apr 06 20:32:09 debian systemd[1]: Started NextPVRServer.

[mvallevand]

Can you run

/opt/nextpvr/system/DeviceHost/arm32/DeviceHostLinux -discover


Martin

[Ziginox]

/opt/nextpvr/system/DeviceHost/arm32/DeviceHostLinux -discover

Code:

root@debian:/home/ziginox# /opt/nextpvr/system/DeviceHost/arm32/DeviceHostLinux -discover
<devices>
  <device>
    <name>adapter0/frontend0 (Auvitek AU8522 QAM/8VSB Frontend)</name>
    <type>ATSC</type>
    <filter>adapter0/frontend0</filter>
    <instance>1</instance>
    <resource>adapter0</resource>
  </device>
  <device>
    <name>adapter0/frontend0 (Auvitek AU8522 QAM/8VSB Frontend)</name>
    <type>QAM</type>
    <filter>adapter0/frontend0</filter>
    <instance>1</instance>
    <resource>adapter0</resource>
  </device>
</devices>

[mvallevand]

That means it's dotnet. What does cat /proc/cpuinfo give you as features.  From reading if you have vfpv3d16 it will fail because of 16 bit instructions

Martin

[Ziginox]

That means it's dotnet. What does cat /proc/cpuinfo give you as features.  From reading if you have vfpv3d16 it will fail because of 16 bit instructions

Martin

Well hey, what do you know:

Code:

ziginox@debian:~$ cat /proc/cpuinfo | grep Features
Features        : half thumb fastmult vfp edsp thumbee vfpv3 vfpv3d16 tls idivt

That's a shame, I assume it means there's no way to get it working on this device?

[mvallevand]

Ultimately it seems like a waste of time effort getting it running, I don't expect it is any better then an RPi3 or older arm32 boards. For fun you'd have to research vfpv3d16 and netcore on your own. Maybe start here https://github.com/dotnet/runtime/issues/9969

Martin