Re: F20 beta virt-manager cannot create bridged network interface

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On Tue, Nov 19, 2013 at 4:21 AM, Mateusz Marzantowicz
<mmarzantowicz@xxxxxxxxxxx> wrote:
> On 19.11.2013 04:52, Richard Michael wrote:
>>
>>
>>
>> On Mon, Nov 18, 2013 at 7:18 PM, Mateusz Marzantowicz
>> <mmarzantowicz@xxxxxxxxxxx <mailto:mmarzantowicz@xxxxxxxxxxx>> wrote:
>>
>>     On 19.11.2013 01:13, Richard Michael wrote:
>>     > Hello,
>>     >
>>     > I've just installed F20 beta x64 and applied all updates.
>>     >
>>     > I'm attempting to create a bridge network interface in virt-manager
>>     > (0.10.0).  I complete the "Configure network interface" dialog, and
>>     > when I click "Finish" I receive an "Input Error" with message:
>>     >
>>     > 'str' object has no attribute 'XMLDesc'
>>     >
>>     >
>>     > A very similar error (when creating a bonded interface) is mentioned
>>     > in comments #1 and #2 in a bug related to "system-config-services"
>>     > here ...
>>     >
>>     > https://bugzilla.redhat.com/show_bug.cgi?id=1028833#c2
>>     >
>>     >  ... with the suggestion to file a bug against virt-manager.  I can't
>>     > find a virt-manager bug related to this however.
>>     >
>>     >
>>     > 1/ I'll open one unless anyone has other suggestions or comments?
>>     >
>>     >
>>     > 2/ I'm new to virt-manager and wondering about a work-around; should I
>>     > investigate using virsh to create the interface hoping virt-manager
>>     > will detect it?
>>     >
>>
>>     My work-around: Create bridge in NetworkManager (or directly edit config
>>     files) and then add it to virt-manager. I always wondered what is this
>>     whole bridge management in virt-manager for.
>>
>>
>> Thank you for the suggestion.  I looked at this, and interface creation
>> using NetworkManager is quite different than in virt-manager.  Also, I'm
>> unsure what you mean by "add it to virt-manager".  In virt-manager, I am
>> only able to create a new interface, I can't find anything to allow
>> adding an existing bridge.
>>
>
> I've found that creating new bridge and specifying existing bridge name
> (like br0) has the same effect as "adding existing" one. I think that
> virt-manager lacks auto-detect mechanism for configured system
> connections. As a result, when you create new bridge but give the name
> of existing one virt-manager starts to recognize it.

Yes, once I followed Adam's suggestion and created the bridge, it
appeared automatically (via detection) - both as a shareable device
during the steps of guest VM creation and also in the "Connection
details" / "Network interfaces" tab.

Thanks Mateusz!

Regards,
Richard


>
> I agree that GUI support for bridging in NM is a bit rough but I'm
> compensating this with text editor.
>
>
>
> Mateusz Marzantowicz
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