The issue has been closed
Problem/Motivation
I just installed Home Assistant 0.118.5 and I want to install Node-RED from Supervisor but I keep getting this error even after restarting Home Assistant.
Expected behavior
From Supervisor I can install Node-RED
Actual behavior
Installation keeps failing with the same message: Failed to install addon // Unknown error, see supervisor
Steps to reproduce
I am using a fresh docker install following this instructions on an Intel based Linux home Node-REDserver:
https://www.jamestucker.me/post/install-home-assistant-on-ubuntu-server-20-04/
Check the supervisor logs, should tell you more. Furthermore, Home Assistant supervised is not supported on Ubuntu.
Ubuntu is not supported by the Home Assistant project.
Thanks for the clarification - for others who might encounter the same issue:
1st: check logs:
go to Supervisor -> System
and then scroll to the bottom
in my case the log reveals "WARNING (MainThread) [supervisor.jobs] 'AddonManager.install' blocked from execution, system is not healthy"
then go to Supervisor -> System
That should show you 3 widgets at the top:
Supervisor
Host System
System Metrics
Under Supervisor you will find:
Your installation is running in an unhealthy state. Learn more
There you can find the problem - for me it was "Supervisor is not privileged":
https://www.home-assistant.io/more-info/unsupported/privileged
I'll see if I can fix this problem in Ubuntu
check your /usr/sbin/hassio-supervisor
if you can find "--privileged" then you simply have to reboot your computer and restart Home Assistant to start it in privileged mode - it worked for me!
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