Thanks man ;).
By any chance if a system VM does not get its ip assigned, would there be
any way to debug and check what is going on? I mean, if after it is running
on the physical host it does respond on the IP that was assigned to it.


On Mon, Apr 7, 2014 at 9:14 AM, Wido den Hollander <w...@widodh.nl> wrote:

>
>
> On 04/07/2014 12:33 AM, Rafael Weingartner wrote:
>
>> Hi folks,
>> I was wondering how a system vm gets an IP address. I know they are the
>> first things that CS needs in order to start up others VMs, so when they
>> start there is no virtual router to assign IP addresses via DHCP.
>>
>>
> Via a local virtio socket from the hypervisor in KVM mode. The VM boots
> and via that local serial socket it gets the IP-address.
>
>
>  I also noticed that on the physical hosts with the VM.Start command CS
>> sends some extra data that includes the IPs that the VM should get.
>> However, I have no idea how it actually gets those parameters and set its
>> IP.
>>
>
> The management server sends this information to the KVM agent. User
> Instances get the IP address via DHCP from the VR, System VMs via the local
> serial socket.
>
> Wido
>
>
>
>> Does anyone here know how it works?
>>
>>


-- 
Rafael Weingärtner

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