If you are upgrading from Ubuntu 20 to Ubuntu 22 using ‘do-release-upgrade’ and get a fatal error ‘Connection to the the Snap Store failed’, this may be resolved by removing the ‘lxd’ package which is a lightweight container supervisor. sudo /etc/init.d/lxd stop sudo rm -fr /var/lib/lxd sudo dpkg --force depends -P lxd; sudo dpkg --force ... Ubuntu: ‘Connection to the Snap Store failed’ during upgrade from Ubuntu 20 to 22
