Hi all, Tried now 'hosted-engine --deploy' on fully updated CentOS 8/ovirt-master-snapshot machine. It failed during adding the host to the engine. engine.log has: 2020-01-26 10:41:47,825+02 ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-1) [11ba00a7] Host installation failed for host 'efd6cb8a-935d-4812-b35c-3fbde5651b5a', 'didi-centos8-host.lab.eng.tlv2.redhat.com': Task Start and enable services failed to execute: 2020-01-26 10:41:47,836+02 INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1) [11ba00a7] START, SetVdsStatusVDSCommand(HostName = didi-centos8-host.lab.eng.tlv2.redhat.com, SetVdsStatusVDSCommandParameters:{hostId='efd6cb8a-935d-4812-b35c-3fbde5651b5a', status='InstallFailed', nonOperationalReason='NONE', stopSpmFailureLogged='false', maintenanceReason='null'}), log id: 4f107d5d 2020-01-26 10:41:47,901+02 INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (EE-ManagedThreadFactory-engine-Thread-1) [11ba00a7] FINISH, SetVdsStatusVDSCommand, return: , log id: 4f107d5d 2020-01-26 10:41:48,002+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-1) [11ba00a7] EVENT_ID: VDS_INSTALL_FAILED(505), Host didi-centos8-host.lab.eng.tlv2.redhat.com installation failed. Task Start and enable services failed to execute: . The code emitting this error seems to be in backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/common/utils/ansible/AnsibleRunnerHTTPClient.java : String.format("Task %1$s failed to execute: %2$s", task, "") // stdout, stderr? Seems like someone considered logging also stdout/stderr but failed to make up their minds. Is this tracked somewhere? ovirt-host-deploy-ansible-20200126103902-didi-centos8-host.lab.eng.tlv2.redhat.com-11ba00a7.log has: 2020-01-26 10:41:38 IST - TASK [ovirt-host-deploy-vdsm : Start and enable services] ********************** 2020-01-26 10:41:47 IST - 2020-01-26 10:41:47 IST - { "status" : "OK", "msg" : "", "data" : { "event" : "runner_on_failed", ... "msg" : "Unable to start service vdsmd.service: Failed to start vdsmd.service: Unit libvirtd-tcp.socket is masked.\n", "_ansible_item_label" : "vdsmd.service" systemctl status libvirtd-tcp.socket indeed still says it's masked. Package is: # rpm -qif /usr/lib/systemd/system/libvirtd-tcp.socket Name : libvirt-daemon Version : 5.6.0 Release : 6.el8 Architecture: x86_64 Install Date: Mon 20 Jan 2020 08:23:12 AM IST Group : Unspecified Size : 1320922 License : LGPLv2+ Signature : RSA/SHA1, Wed 08 Jan 2020 11:06:38 AM IST, Key ID 695b5f7eff3e3445 Source RPM : libvirt-5.6.0-6.el8.src.rpm Build Date : Wed 08 Jan 2020 11:06:04 AM IST Build Host : copr-builder-156909441.novalocal Relocations : (not relocatable) URL : https://libvirt.org/ Summary : Server side daemon and supporting files for libvirt library Description : Server side daemon required to manage the virtualization capabilities of recent versions of Linux. Requires a hypervisor specific sub-RPM for specific drivers. Known issue? Thanks and best regards, -- Didi