Same device multiple times in known_devices

Configuration
1

As some of you may have noticed I am having trouble with modifying properties (name/picture/icon etc.) of my entitites.

Now I found that my devices exist multiple times in my known_devices.yaml, For example my phone exitsts about 10 times with the same mac_address in known_devices.
I think that when I modify one in customize.yaml Hassio does know which one to modify.

How can I change this, and what do I have to do when I want new devices to be discovered.

2

When I saw in the past that I had multiple entries for the same MAC in my known-devices.yaml, I just kept one and deleted the copies - worked fine and I did not get multiple entries bei created any more.
Wasn’t necessary for a long time but I hope it would still work.

3

@chairstackers: I have done that for two devices now and it is a lot of work. There are about 6000 line in my known_devices.yaml now while I it should be about 10% of that I guess.

4

Wow - that’s a lot. Sorry to hear that.

You wouldn’t happen to have a backup of the file from before it multiplied?
That saved me a lot of time on one occasion.

5

At the top of known_devices.yaml, after the devices you want to keep, put this line:

#end-of-my-devices#

Then create a shell_command in config yaml:

shell_command:
  clean_knowndevices: /bin/bash /config/clean_knowndevices.sh

Then create an automation to run that shell command when HA starts:

- id: 'cleanknowndevices'
  alias: Clean out Known Devices
  initial_state: 'true'
  trigger:
  - event: start
    platform: homeassistant
  action:
  - service: shell_command.clean_knowndevices

Finally, create clean_knowndevices.sh in config directory (with config yaml) and make it executable…

#!/bin/sh
/bin/sed -i '/#end-of-my-devices#/q' /config/known_devices.yaml

from ssh… chmod +x clean_knowndevices.sh

Then everytime HA restarts it will get rid of extra devices. If there are new ones you want to keep, just move them up above the line.

2 Likes
6

Thank you for this. I implemented it …now I have to wait if it works.

Next day … so far so good :slight_smile:

1 Like