SOLVED: Unable to Change GPU Ownership/Permissions in Linux

[tacohell]

This is more of a Linux question if anyone has experienced this problem

I'm running Jellyfin in a Proxmox LXC container. I've already passed through the Intel iGPU and Jellyfin is a part of the render group.

ls -l /dev/dri
crw-rw---- 1 nobody _ssh 226, 128 Feb 14 15:54 renderD128



For some reason renderD128 does not have an associated user and group. When running chmod or chown I get this issue:

sudo chmod 666 renderD128
chmod: changing permissions of 'renderD128': Operation not permitted

Not sure why I can't change this with sudo, or even change ownership to root

[TheDreadPirate]

Is the LXC privileged?

[tacohell]

LXC was unprivileged, but I found what the issue was.

I had to change permissions on the proxmox host of RenderD128. Once changed there, the LXC permission was the same:
crw-rw-rw- 1 nobody _ssh 226, 128 Feb 14 15:54 renderD128

Even though it still doesn't have an owner, transcoding is working now.

[TheDreadPirate]

This is not recommended. The permissions you manually set on renderD128 will revert when you reboot the system.

Our documentation recommends that you run the LXC as a privileged container.

https://jellyfin.org/docs/general/admini...on-proxmox

But I know it is possible for the LXC to be unprivileged, but requires a lot of user mapping between the host and LXC.

[tacohell]

Got it, I'll try that instead. Thanks