I am getting an issue trying to update to supervisor-2021.04.0 on my RPi 4 AMD64 image I have been updating successfully for a few months now. My first failure.
Tried from the CLI and
What can I look for?
OMG, found the problem! I have two RPi Internal DNS server, and the HA RPi was using the one with a bad patch cord whne it was trying to update so getting no DNS response, but the Terminal could ping by DNS name as it was using the OTHER one.
Fixed the patch cord on my DNS server, HA is all updated now!