Networking question on setting up self-hosting engine

Dear list, I have tried setting up self-hosting engine on a host with ONE Nic (Ovirt 4.4 CentOS 8 Stream). I followed the Quick Start Guide, and tried the command line self-host setup, but ended up with the following error: {u'msg': u'There was a failure deploying the engine on the local engine VM. The system may not be provisioned according to the playbook results.... I tried on another host with TWO NICs (Ovirt 4.3 Oracle Linux 7 Update 9). This time I setup a bridge BR0 and disable EM1 (the first Ethernet interface on the host), and then created Bond0 on-top of BR0. Both Bond0 and EM2 (the second Ethernet interface on the host) were up. And then I tried again using Ovirt-Cockpit wizard, with the Engine VM set on BR0, and the deployment of Engine VM simply failed. The Engine and Host are using the same network numbers (192.168.2.0/24) and they resolved correctly. I read the logs in var/log/ovirt-engine/engine.log but there wasn't any error reported. I have already tried many times for the past few days and I'm at my wits-end. May I know: 1) Is it possible to install Self-hosted engine with just ONE NIC? 2) Any suggestion how to troubleshoot these problems? And tested network configurations? Hope to hear from you. Thanks.

Hi, On Wed, Jan 13, 2021 at 7:16 PM <netgoogling@gmail.com> wrote:
Dear list,
I have tried setting up self-hosting engine on a host with ONE Nic (Ovirt 4.4 CentOS 8 Stream). I followed the Quick Start Guide, and tried the command line self-host setup, but ended up with the following error:
{u'msg': u'There was a failure deploying the engine on the local engine VM. The system may not be provisioned according to the playbook results....
I tried on another host with TWO NICs (Ovirt 4.3 Oracle Linux 7 Update 9). This time I setup a bridge BR0 and disable EM1 (the first Ethernet interface on the host), and then created Bond0 on-top of BR0. Both Bond0 and EM2 (the second Ethernet interface on the host) were up. And then I tried again using Ovirt-Cockpit wizard, with the Engine VM set on BR0, and the deployment of Engine VM simply failed. The Engine and Host are using the same network numbers (192.168.2.0/24) and they resolved correctly. I read the logs in var/log/ovirt-engine/engine.log but there wasn't any error reported.
I have already tried many times for the past few days and I'm at my wits-end. May I know: 1) Is it possible to install Self-hosted engine with just ONE NIC?
Generally speaking, yes.
2) Any suggestion how to troubleshoot these problems? And tested network configurations?
Please check/share all relevant logs. If unsure, all of /var/log. Specifically, /var/log/ovirt-hosted-engine-setup/* (also engine-logs subdirs, if relevant) and /var/log/vdsm/* on the hosts. Good luck and best regards, -- Didi
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netgoogling@gmail.com
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Yedidyah Bar David