Can't open serial port /dev/zwave

[sstainba]

I am attempting to set up zwavejs2mqtt on TrueNAS Scale. I have a Zooz zwave stick and in the container settings I have it mapped (by-id) to /dev/zwave. The container is running as the "apps" user (no sudo privs) but the container is privileged. However, I keep getting an error in the web ui that says the driver failed to open the serial port (permission denied). Any ideas what I can check/change to get through this?

[robertsLando]

Does the user that is running the container has the permissions to access the serial device? If you could share your docker compose file it could be easier to debug this.
cc @kpine @blhoward2

[blhoward2]

This is almost certainly a permissions issue. Either your docker instance can't access the by-id device file, or the process can't access the /dev/zwave one inside the container.

Make sure your docker user is in the dialout group on the host. I agree that seeing your docker compose would help.

[kpine]

I don't know how containers work on TrueNAS Scale, so another possible problem could be the controller soft-reset. You can try disabling that in the Z-Wave settings. We need more information to provide any help.

https://zwave-js.github.io/zwavejs2mqtt/#/troubleshooting/app_crash
https://zwave-js.github.io/zwavejs2mqtt/#/troubleshooting/generating-logs?id=driver-logs

[yakclock]

I'm having a similar problem. I'm running docker as rootless with the user 'ubuntu' which is in the dialout group.

'Silly' Level logs are below. I'm running from a Makefile like this:

docker run -d --name zwavejs2mqtt -p 8091:8091 -p 3000:3000 --device /dev/serial/by-id/usb-0658_0200-if00 -v /srv/containers/sandpit/zwavejs2mqtt/store:/usr/src/app/store zwavejs/zwavejs2mqtt:latest

2021-12-05T10:22:05.471Z DRIVER version 8.8.3 2021-12-05T10:22:05.471Z DRIVER 2021-12-05T10:22:05.472Z DRIVER starting driver... 2021-12-05T10:22:05.481Z DRIVER opening serial port /dev/serial/by-id/usb-0658_0200-if00 2021-12-05T10:22:14.522Z DRIVER Failed to open the serial port: Error: Permission denied, cannot open /dev/ser ial/by-id/usb-0658_0200-if00 2021-12-05T10:22:14.523Z DRIVER destroying driver instance... 2021-12-05T10:22:14.527Z DRIVER driver instance destroyed

Could this be because its rootless docker ? I know that there are limitations when running rootless but I cannot find anything that specifically mentions serial devices.

[robertsLando]

It could be for sure

[jrgleason]

I am running mine native on Raspberry Pi OS with npm run start and I am getting the same error. I tried with sudo and I also tried to add the pi user to dialout but it already was. Any ideas would be great. I also tried using su to root and running from that.

[kpine]

Why are you using npm?

https://zwave-js.github.io/zwave-js-ui/#/getting-started/other-methods?id=nodejs-or-pkg-version

[jrgleason]

Why are you using npm?

https://zwave-js.github.io/zwave-js-ui/#/getting-started/other-methods?id=nodejs-or-pkg-version

I want to and actually the problem ended up being me running under root and it didn't have dialout (both sudo and su root) so I think I finally have it working but now the zwave server is booting up and I can see valid message (temp etc) but the UI never starts.

[jrgleason]

Why are you using npm?
https://zwave-js.github.io/zwave-js-ui/#/getting-started/other-methods?id=nodejs-or-pkg-version

I want to and actually the problem ended up being me running under root and it didn't have dialout (both sudo and su root) so I think I finally have it working but now the zwave server is booting up and I can see valid message (temp etc) but the UI never starts.

NM fixed that too