USB Passthrough to unprivileged Container

[silenceisaword]

Hello,

for a few hours I am trying to passthrough my 3D Printer to my Octoprint Container.
But I can't get it to work - the main Problem is that after adding this to my container config in Proxmox:

lxc.cgroup2.devices.allow: c 189:* rwm
lxc.mount.entry: /dev/bus/usb/002/008 dev/bus/usb/002/008 none bind,optional,create=file

It does not create a ttyACM0 in /dev .

If it help here is the complete Container config:

  GNU nano 7.2                                                                  /etc/pve/lxc/104.conf
#||Wert|Port/s|
#|%3A-----|%3A-----|%3A-----|
#|Hostname|SLNC-CT-3D|
#|Domain||
#|OS|Debian 12|
#|Services|Octoprint||
#|IP|10.6.13.2|5000|
arch: amd64
cores: 2
features: keyctl=1,nesting=1
hostname: SLNC-CT-3D
memory: 2048
nameserver: 10.6.13.1
net0: name=eth0,bridge=vmbr0,gw=10.6.13.1,hwaddr=BC:24:11:1F:F4:BA,ip=10.6.13.2/24,tag=613,type=veth
onboot: 0
ostype: debian
rootfs: local-lvm:vm-104-disk-0,size=4G
swap: 512
tags: proxmox-helper-scripts
unprivileged: 1
lxc.cgroup2.devices.allow: c 189:* rwm
lxc.mount.entry: /dev/bus/usb/002/008 dev/bus/usb/002/008 none bind,optional,create=file

My ProxmoxVE is 8.1.4

I've read dozens of threads but I just can't get it to work..
Maybe my brain ain't braining right now - hope someones brain.exe will help me solve my Problem

 

[leesteken]

lxc.cgroup2.devices.allow: c 189:* rwm
lxc.mount.entry: /dev/bus/usb/002/008 dev/bus/usb/002/008 none bind,optional,create=file

It does not create a ttyACM0 in /dev .

/dev/bus/usb is not stable and (hot)plugging does not work in containers, which propably explains why ttyACM0 is not creatged.

If it help here is the complete Container config:

  GNU nano 7.2                                                                  /etc/pve/lxc/104.conf
#||Wert|Port/s|
#|%3A-----|%3A-----|%3A-----|
#|Hostname|SLNC-CT-3D|
#|Domain||
#|OS|Debian 12|
#|Services|Octoprint||
#|IP|10.6.13.2|5000|
arch: amd64
cores: 2
features: keyctl=1,nesting=1
hostname: SLNC-CT-3D
memory: 2048
nameserver: 10.6.13.1
net0: name=eth0,bridge=vmbr0,gw=10.6.13.1,hwaddr=BC:24:11:1F:F4:BA,ip=10.6.13.2/24,tag=613,type=veth
onboot: 0
ostype: debian
rootfs: local-lvm:vm-104-disk-0,size=4G
swap: 512
tags: proxmox-helper-scripts
unprivileged: 1
lxc.cgroup2.devices.allow: c 189:* rwm
lxc.mount.entry: /dev/bus/usb/002/008 dev/bus/usb/002/008 none bind,optional,create=file

My ProxmoxVE is 8.1.4

I've read dozens of threads but I just can't get it to work..
Maybe my brain ain't braining right now - hope someones brain.exe will help me solve my Problem

Maybe use the new way to do this, like I suggested here: https://forum.proxmox.com/threads/s...ss-gpu-by-id-mapping-error.145086/post-653528
But use /dev/ttyACM0 in your case and figure out the right group ID for your device.

 

[silenceisaword]

/dev/bus/usb is not stable and (hot)plugging does not work in containers, which propably explains why ttyACM0 is not creatged.

Maybe use the new way to do this, like I suggested here: https://forum.proxmox.com/threads/s...ss-gpu-by-id-mapping-error.145086/post-653528
But use /dev/ttyACM0 in your case and figure out the right group ID for your device.

Thank you, I'll give it a try and report back

 

[leesteken]

Thank you, I'll give it a try and report back

I read your reply and will let you know what I think later. ;-)