Comment 29 for bug 1927519

That all LGTM, the one oddity is in Focal with the mention of a failed service.

But that is just focals debhelpers not able to understand an already started socket/service.

Nov 23 11:27:00 f systemd[1]: libvirtd-ro.socket: Socket service libvirtd.service already active, refusing.
Nov 23 11:27:00 f systemd[1]: Failed to listen on Libvirt local read-only socket.

The upgrade still went fine and the service runs correctly.

root@f:~# systemctl status libvirtd
● libvirtd.service - Virtualization daemon
     Loaded: loaded (/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2021-11-23 11:27:00 UTC; 3min 1s ago
TriggeredBy: ● libvirtd.socket
             ● libvirtd-admin.socket
             ● libvirtd-ro.socket
       Docs: man:libvirtd(8)
             https://libvirt.org
   Main PID: 15624 (libvirtd)
      Tasks: 19 (limit: 32768)
     Memory: 40.2M
     CGroup: /system.slice/libvirtd.service
             ├─ 3643 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
             ├─ 3644 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper
             └─15624 /usr/sbin/libvirtd

Nov 23 11:27:00 f systemd[1]: Starting Virtualization daemon...
Nov 23 11:27:00 f systemd[1]: Started Virtualization daemon.
Nov 23 11:27:00 f dnsmasq[3643]: read /etc/hosts - 7 addresses
Nov 23 11:27:00 f dnsmasq[3643]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
Nov 23 11:27:00 f dnsmasq-dhcp[3643]: read /var/lib/libvirt/dnsmasq/default.hostsfile

And finally this isn't new/changed by this upload