Testing now confirmed, that for the version in experimental I need to do both:
a) drop the sysV - as Ubuntu has done for a while - without the sysV to systemd mapping still restarts the services - something like [1], I haven an MP up for that on salsa, might be slightly outdated b) Specify both --no-stop-on-upgrade and --no-restart-after-upgrade Otherwise dh_installsystemd snippets will restart the service [1]: https://git.launchpad.net/~libvirt-maintainers/ubuntu/+source/libvirt/commit/?id=0b5b15b390903e5c282a8bb2c27d53d63e442f31 -- Christian Ehrhardt Software Engineer, Ubuntu Server Canonical Ltd
