Hi, hopefully someone can help with a frustrating issue I am having. Its not directly related to HA, but the OS. I have installed HA OS on a Ubuntu linux server. All was well until recently a problem occurred when I rebooted the server for updates. The zibee network conbee II disappeared,
Error messages in latest instance:
2021-11-23 20:34:24 ERROR (MainThread) [zigpy_deconz.uart] Lost serial connection: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2021-11-23 20:34:26 ERROR (MainThread) [zigpy.application] Couldn't start application
2021-11-23 20:34:26 ERROR (MainThread) [homeassistant.components.zha.core.gateway] Couldn't start deCONZ = dresden elektronik deCONZ protocol: ConBee I/II, RaspBee I/II coordinator
I managed to get it working again by executing “virsh attach-device hassos /tmp/a.xml --persistent”, the xml file contained:
<hostdev mode='subsystem' type='usb'>
<source>
<vendor id='0x1cf1'/>
<product id='0x0030'/>
</source>
</hostdev>
This time, same problem but when I try to pass thru the USB device the system says its already in config.
Any ideas on why this happens and is there a way of fixing this so that the USB passthru is permanent. The “–persistent” suffix does not seem to work reliably across upgrades and reboots of the ubuntu operating system.
HA OS - 2021.11.4
Ubuntu - LTS 20.4
many thanks