Hi Nir Thank you for your explanation. Can I ask you if you can explain this a bit further? I performed and experiment and installed ovirt + a hypervisor on 2 VMs (on the hypervisor VM I enabled nested virtualization) - both based on Rocky Linux following the official oVirt instructions for 4.4.7. No problems there - I also created a vm and successfully ran it. Based on this, Rocky - at the moment - replaces CentOS8 just nicely. And while libvirt installed is libvirt-7.0.0-14.1.el8.x86_64 and comes from CentOS8 advanced virt repo, qemu on the hypervisor machine is qemu-kvm-4.2.0-48.module+el8.4.0+534+4680a14e.x86_64 not 5.2.0 and comes from Rocky's repos. Does it mean that, once CentOS8 reaches EOL at the end of this year, we should only hope that Rocky releases libvirt-7.0.0 in their advanced-virt repo? A snippet from oVirt GUI - hypervisor properties: OS Version: RHEL - 8.4 - 30.el8 OS Description: Rocky Linux 8.4 (Green Obsidian) Kernel Version: 4.18.0 - 305.7.1.el8_4.x86_64 KVM Version: 4.2.0 - 48.module+el8.4.0+534+4680a14e LIBVIRT Version: libvirt-7.0.0-14.1.el8 and confirmation: # rpm -q qemu-kvm qemu-kvm-4.2.0-48.module+el8.4.0+534+4680a14e.x86_64 Thank you in advance! Kind regards, Branimir