I was hoping to migrate my systems to using selinux gradually. I added 3 new nodes with selinux in permissive mode. Migration fails to any of the previous hosts that currently have selinux disabled. Is it an all or nothing deal? Obviously not easy to reboot all nodes at once. 2017-07-28 09:35:43,616 ERROR (migsrc/8c566813) [virt.vm] (vmId='8c566813-4bee-4f04-be23-c9fc10e1e1f2') unsupported configuration: Unable to find security driver for model selinux (migration:265) 2017-07-28 09:35:43,641 ERROR (migsrc/8c566813) [virt.vm] (vmId='8c566813-4bee-4f04-be23-c9fc10e1e1f2') Failed to migrate (migration:405) Traceback (most recent call last): ovirt-engine-4.1.0.4-1.el7.centos.noarch libselinux-utils-2.5-6.el7.x86_64 related: http://lists.ovirt.org/pipermail/users/2016-October/076878.html