ZHA Broken in 2020.5, Error setting up entry TI CC2531 USB

[Sjorsa]

The problem

I have updated to 2020.5 and down to 2020.4 two times now, and in 2020.5 I get this error and my zigbee network does not work anymore, all 18 devices and 48 entities are unavailable. In 2020.4 everything works fine.
Error setting up entry TI CC2531 USB CDC, s/n: __0X00124B0014D96121 - Texas Instruments for zha

What is version of Home Assistant Core has the issue?

core-2021.5.5

What was the last working version of Home Assistant Core?

2020.4

What type of installation are you running?

Home Assistant Container

Integration causing the issue

ZHA

Link to integration documentation on our website

https://www.home-assistant.io/integrations/zha/

Example YAML snippet

No response

Anything in the logs that might be useful for us?

raceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 269, in async_setup
    result = await component.async_setup_entry(hass, self)  # type: ignore
  File "/usr/src/homeassistant/homeassistant/components/zha/__init__.py", line 102, in async_setup_entry
    await zha_gateway.async_initialize()
  File "/usr/src/homeassistant/homeassistant/components/zha/core/gateway.py", line 155, in async_initialize
    app_config = app_controller_cls.SCHEMA(app_config)
  File "/usr/local/lib/python3.8/site-packages/voluptuous/schema_builder.py", line 272, in __call__
    return self._compiled([], data)
  File "/usr/local/lib/python3.8/site-packages/voluptuous/schema_builder.py", line 594, in validate_dict
    return base_validate(path, iteritems(data), out)
  File "/usr/local/lib/python3.8/site-packages/voluptuous/schema_builder.py", line 432, in validate_mapping
    raise er.MultipleInvalid(errors)
voluptuous.error.MultipleInvalid: path does not exist for dictionary value @ data['device']['path']

Additional information

No response

[Adminiuga]

Check the release notes and breaking changes. New docker container is not running udev, so your path is probably missing.

On the side note, consider upgrading the cc2531. It just not adequate anymore. https://www.tubeszb.com/ have some nice alternatives.

Per se this is not a zha issue, but caused by breaking changes in the container. Feel free to submit feedback in the ha docker repo.

[Sjorsa]

Are there docker-specific patch notes somewhere? I don't see breaking changes about ZHA on the official 2021.5 release notes.

[Adminiuga]

Not about zha. The change was about container disabling udev. No udev -> no serial path in container -> no zha

[Derkades]

The solution is to refer to devices by their main path (e.g /dev/ttyUSB0) instead of symlinks in /dev/serial/by-id. Described in more detail here: #50289 (comment).

Commit that disabled these symlinks by default: home-assistant/docker@93a881b