Comment # 15 on bug 1215984 from James Fehlig

(In reply to Michal Suchanek from comment #11)
> I don't know about modular vs monolithic daemons.

Yeah, and you really shouldn't have to. Unfortunately for Leap, the systemd
presets do not include libvirtd. It is included in the SLE15 SP5 presets, and
the TW presets contain all the required modular daemons. With the correct
presets, the daemon(s) are started when the packages are installed.

> Like how is anybody ever supposed to get this running?

As Charles mentioned, you can install with roles, patterns, or the yast module.
If those don't suite your needs, you can install a functional libvirt+kvm stack
with

zypper install libvirt-daemon-qemu libvirt-client

On SLE15 SP5 or TW, that should get you a working setup with necessary daemons
enabled and started. 'virsh list --all; virsh net-list --all; virsh pool-list
--all' should all work without further configuration.

I tried installing those packages on a fresh Leap 15.5 install, and the virsh
commands worked fine after I enabled/started libvirtd (systemctl enable
libvirtd.service; systemctl start libvirtd.service). I then installed
virt-manager, started it as a normal user, and it connected to the system
daemon just fine after providing root passwd.

BTW, I'm using packages from the standard 15.5 update repos, nothing from the
Virtualization project.