Migrated from Ubuntu 18.04 MIAB v57a to Ubuntu 22.04 MIAB v60 on digitalocean droplet.
Successfully restored backup files using:
Self-signed cert for main box.XXX.tld page. All other TLS certs valid.
Something to do with letsencrypt multiple accounts from 18.04 migration of files/accounts/certs
Issue: System Status Check advertises 2 packages “Ubuntu Pro”
From command line:
sudo rm /var/lib/ubuntu-advantage/messages/*.tmpl
sudo rm /etc/update-motd.d/88-esm-announce
sudo systemctl disable ubuntu-advantage
Hopefully this helps somebody…