On 20/05/2021 10:42, Yedidyah Bar David wrote:
> On Wed, May 19, 2021 at 9:34 PM lejeczek via Users <users@ovirt.org> wrote:
>> Hi guys.
>>
>> -> $ ovirt-hosted-engine-cleanup -q
>>
>> says it ran its stuff, done & dusted yet I see 'ovirtmgmt'
>> bridge remains.
>> Would that be a bug and how to clean it?
> It won't be fixed, because it's hard to fix _reliably_.
>
> Most recent relevant patch:
> https://gerrit.ovirt.org/c/ovirt-hosted-engine-setup/+/112336 .
>
> Basically, you have three choices:
>
> 1. Reinstall the OS and try again to deploy.
>
> 2. Try to deploy again without removing the bridge. If the failure was
> not due to misconfigured networking, and you handled the root cause
> for it, a second attempt will likely succeed.
>
> 3. Manually remove it:
>
> - Make sure you can login to the machine even with the network down.
>  From a serial console, remote KVM, whatever.
>
> - Check which nic is inside the ovirtmgmt bridge.
>
> - Note the IP address of the bridge.
>
> - Remove the nic from the bridge, remove the bridge, configure the NIC
> to have the IP address. Or perhaps start it and let it get an address
> from dhcp, as applicable.
'ovirtmgmt' survives reboots or rather - even after manual
removal, after reboot it gets created anew.
How to get that fixed? It's not NM's bits do that - what it
doing it?

# cat mgmt_remove.json 
{
    "networks": {
        "ovirtmgmt": {
            "remove": true
        }
    },
    "options": {
        "commitOnSuccess": true,
        "connectivityCheck": false
    },
    "bondings": {}
}
# vdsm-client -f mgmt_remove.json Host setupNetworks

thanks, L.
> There is nothing specific to oVirt in this. You can try searching the
> net for other guides about how to move a NIC out of a bridge in Linux.
> If you do this very carefully, you might manage to do this from
> remote, but I'd personally not try this unless I do have simple access
> to the machine's console in case I make a mistake.
>
> Good luck and best regards,
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