Anyone using Conbee II in LXC (Proxmox)?

Configuration
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1

The title says it pretty much: I am struggling to get this working.

I have (I think) succeeded in the pass-through of the USB port (first time I do/need this) to the container since I can see the same device/port as well in the hypervisor as in the container.
Strange thing though: the device number keeps changing.

Any help is greatly appreciated!

2

Nobody with this combo?

3

Map it by id

/dev/serial/by-id/usb-dresden_elektronik_ingenieurtechnik_GmbH_ConBee_II_DE*****-if00
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4

Hi @tteck, thanks for helping! :+1:
Does a USB device automatically show as serial?

5

Depends on the device.
Zigbee coordinators have a USB-to-Serial/UART chip on board.
What are you using USB pass-through for? zigbee2mqtt? or something else?

6

zigbee/deCONZ

7

Don’t know if this is normal: I don’t have a /dev/serial folder.

With lsusb I can see the device and the ID in proxmox but have not found on how to go from there to map the device by ID.

8

Run this in the Proxmox shell to open ports in the lxc. Be sure to change the lxc id

bash -c β€œ$(wget -qLO - https://github.com/tteck/proxmox_z2m_lxc/raw/master/open_port.sh)” -s 102

(change 102 to your lxc id)

edit: reboot the lxc after running the script

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9

Then run

ls -l /dev/serial/by-id

In the lxc console after a reboot

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10

Thanks again for your help @tteck!

I had the stick in a RPi until now.
It was autodetected in Proxmox, visible by device and ID.
Executed your script, inserted the stick and rebooted.

ls -l /dev/serial/
ls: cannot access '/dev/serial/': No such file or directory

Can this be related that I disabled things I don’t use in the BIOS?

11

@tteck: the serial ports were disabled, I have turned them on and in the Proxmox shell I have now the USB stick as a serial device

lrwxrwxrwx 1 root root 13 Jul 13 18:39 usb-dresden_elektronik_ingenieurtechnik_GmbH_ConBee_II_DE2437849-if00 β†’ …/…/ttyACM0

but not in the HA lxc

12

Anyone who can give me some pointers for this?
I have searched here, the Proxmox forum and the web but maybe I’m searching with the wrong keywords.

Thanks in advance!

13

In the Proxmox shell run cat /etc/pve/lxc/104.conf
Where 104 is replace with your lxc id
post your findings here, so we can find a solution

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14 
cat /etc/pve/lxc/116.conf
#172.16.0.5
#- HA
arch: amd64
cores: 2
hostname: v-hass
memory: 512
nameserver: 172.16.0.3
net0: name=eth0,bridge=vmbr0,firewall=1,gw=172.16.0.1,hwaddr=7A:3B:51:A7:D2:4F,ip=172.16.0.5/24,type=veth
onboot: 1
ostype: debian
parent: OK_2021_6bis
rootfs: local-zfs:subvol-116-disk-0,size=5G
swap: 512
unprivileged: 1
lxc.cgroup.devices.allow: c 189:1 rwm
lxc.mount.entry: /dev/bus/usb/001/004 dev/bus/usb/001/004 none bind,optional,create=file

Thanks @tteck!

15

Replace the last three lines with

lxc.cgroup.devices.allow: c 188:* rwm
lxc.mount.entry: /dev/serial/by-id               dev/serial/by-id         none bind,optional,create=dir
lxc.mount.entry: /dev/ttyUSB0                    dev/ttyUSB0             none bind,optional,create=file
lxc.mount.entry: /dev/ttyACM0                    dev/ttyACM0             none bind,optional,create=file

Reboot the lxc and see if you can see the device.

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16

Can it be β€˜the last 2 lines’?

17

I don’ know if it needs to be privileged or not. Try it unprivileged and see.

18

YESSS! :clap:
Only (don’t know if this matters) is owned by nobody/nogroup.

So now I was looking to add the deCONZ integration and it still seems that I can only select a remote gateway.

19

I know nothing about deCONZ. Sorry

20

No problem, you got me a lot further!

Just to be sure, is this the right output?

ls -l /dev/serial/by-id/
total 0
lrwxrwxrwx 1 nobody nogroup 13 Jul 15 21:37 usb-dresden_elektronik_ingenieurtechnik_GmbH_ConBee_II_DExxxxxxx-if00 -> ../../ttyACM0