I'm trying to test with ost: https://github.com/lago-project/lago/pull/815 So clone the project on the ost vm and built rpms: make make rpm The result is: lago-1.0.2-1.el8.noarch.rpm python3-lago-1.0.2-1.el8.noarch.rpm But the lago version installed by setup_for_ost.sh is: $ rpm -q lago lago-1.0.11-1.el8.noarch I tried to install lago from master, and then lago_init fail: $ lago_init /usr/share/ost-images/el8-engine-installed.qcow2 -k /usr/share/ost-images/el8_id_rsa Using images ost-images-el8-host-installed-1-202011021248.x86_64, ost-images-el8-engine-installed-1-202011021248.x86_64 containing ovirt-engine-4.4.4-0.0.master.20201031195930.git8f858d6c01d.el8.noarch vdsm-4.40.35.1-1.el8.x86_64 usage: lago [-h] [-l {info,debug,error,warning}] [--logdepth LOGDEPTH] [--version] [--out-format {default,flat,json,yaml}] [--prefix-path PREFIX_PATH] [--workdir-path WORKDIR_PATH] [--prefix-name PREFIX_NAME] [--ssh-user SSH_USER] [--ssh-password SSH_PASSWORD] [--ssh-tries SSH_TRIES] [--ssh-timeout SSH_TIMEOUT] [--libvirt_url LIBVIRT_URL] [--libvirt-user LIBVIRT_USER] [--libvirt-password LIBVIRT_PASSWORD] [--default_vm_type DEFAULT_VM_TYPE] [--default_vm_provider DEFAULT_VM_PROVIDER] [--default_root_password DEFAULT_ROOT_PASSWORD] [--lease_dir LEASE_DIR] [--reposync-dir REPOSYNC_DIR] [--ignore-warnings] VERB ... lago: error: unrecognized arguments: --ssh-key /home/nsoffer/src/ovirt-system-tests/deployment-basic-suite-master /home/nsoffer/src/ovirt-system-tests/basic-suite-master/LagoInitFile Do we use a customized lago version for ost? Where is the source? Nir