Hi Sandro,just tried to install self hosted engine in a nested environment (host is free ESXi 6.0 where I also have a working nested oVirt cluster of 3 HCI gluster hosts).The host is CentOS 7.2 updated with CR repo enabled (so it should be an upcoming CentOS 7.3).Note that if you're using CR repo you'll need the new qemu-kvm-ev 2.6 from virt sig testing: http://buildlogs.centos.org/centos/7/virt/x86_ 64/kvm-common/