[ovirt-users] Failed to execute stage 'Environment setup': Command '/bin/systemctl' failed to execute

Hey, I'm desperately trying to install oVirt hosted engine on a fresh centos 7 system. After the following steps: [root@ Centos7 ~]# yum localinstall -y http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm [root@ Centos7 ~]# yum install -y ovirt-hosted-engine-setup screen glusterfs-server nfs-utils vdsm-gluster system-storage-manager [user@Centos7 ~]$ sudo su [root@WesterOS ~]# screen I get the following error log: [ INFO ] Stage: Initializing Continuing will configure this host for serving as hypervisor and create a VM where you have to install oVirt Engine afterwards. Are you sure you want to continue? (Yes, No)[Yes]: [ INFO ] Generating a temporary VNC password. [ INFO ] Stage: Environment setup Configuration files: [] Log file: /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20141129204526-sl1lwm.log Version: otopi-1.3.0 (otopi-1.3.0-1.el7) [ INFO ] Hardware supports virtualization [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup [ ERROR ] Failed to execute stage 'Environment setup': Command '/bin/systemctl' failed to execute [ INFO ] Stage: Clean up [ INFO ] Generating answer file '/etc/ovirt-hosted-engine/answers.conf' [ INFO ] Answer file '/etc/ovirt-hosted-engine/answers.conf' has been updated [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination I have neither firewalld nor networkmanager running and still get this error after a reboot. Please help me. Jürgen