[ovirt-users] Self-hosted engine: Host cannot activate

[Alan Murrell]

I am attempting to install oVirt 3.6 on a CentOS7 host.  it is a  
single server, so I am trying to install a self-hosted engine.  I am  
able to install oVirt 3.5 self-hosted engine, but am having some  
problems doing it with 3.6.

Everything appears to go fine; the engine-setup completes  
successfully.  On the host, I pressed"1" to indicate engine-setup was  
complete, and it can connect to the webadmin but the host never  
becomes operational.

I am able to log in to the webadmin, and indeed the host is in a  
non-operational state.  When I click on the host then click on the  
"Virtual networks" tab, all my interfaces are showing a red arrow.

When I click on "Setup Host Networks", my "ovirtmgmt" network is  
unassigned.  Believing this to be why my host is not operational  
(since it is under "Required"), I assigned it to my management  
interface, but the interfaces still remain red.  In addition, the  
"ovirtmgmt" network does have a green arrow, but also the icon  
indicating "Out of sync".  If I click on "Sync All Networks", I get  
the following error:

"Error while executing action SyncAllHostNetworks: Network is  
currently being used"

which makes sense, since "ovirtmgmt" is assigned/in use.  I am unable  
to unassign ovirtmgmt.

Current status is this:

   - All network interfaces are showing the red "down" arrow
   - "ovirtmgmt" is assigned to my management NIC, but indicating that  
it is out of sync
   - I am unable to unassign the "ovirtmgmt" network (or at least, if  
I do, the "OK" button is greyed out)

I could destroy the engine VM and go through the setup again, with the  
idea of once it is installed and waiting for the host to become  
operational, I could do a "Sync All Networks" and see if the networks  
turn green and go from there.

I wanted to see what sort of insight I could get from here first.  I  
am not sure what logs would be useful to you, so let me know what you  
want to see and I and make them available (I will likely zip them up  
and post a link)

Something else I could try if this becomes a "puzzler" is to do a  
3.5.x self-hosted engine then perform an in-place upgrade to 3.6 and  
see if that works?  I would rather try to help make a direct 3.6  
install work, though...

Thanks, in advance! :-)

Regards,

Alan