libvirt - The virtualization API libvirt is a toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). You can enable other optional (not-autodetected) features by passing variables to the script (VAR=yes|no ./libvirt.SlackBuild): VIRTGROUP=somegroup (default: users) qemu group used XEN=yes|no (default: no) Xen support OPENVZ=yes|no (default: no) OpenVZ support VMWARE=yes|no (default: no) VMware support ESX=yes|no (default: no) ESX support VBOX=yes|no (default: no) VirtualBox support If you want to start the libvirt daemon at boot, add this to /etc/rc.d/rc.local # Start libvirt: if [ -x /etc/rc.d/rc.libvirt ]; then /etc/rc.d/rc.libvirt start fi