Systemd Journal

The issue

The Supervisor needs access to the systemd journal for logging features such as the /host/logs API. These features don’t work if the journal is not accessible.

The solution

The systemd-journal-gatewayd service needs to be running on the host and exposed to supervisor via unix socket.

If using Home Assistant OS, update to version 7 or later.

If using Home Assistant Supervised, run the following on the host:

sudo apt install systemd-journal-remote -y

and then reboot. If you still see this issue then run the supervised installer on the host as the supervisor service may need an update as well.