[et-mgmt-tools] virt-bridge option not working in koan 0.8.0?

Michael DeHaan mdehaan at redhat.com
Thu Mar 27 20:13:35 UTC 2008


Sandor W. Sklar wrote:
>
> On Mar 27, 2008, at 1:03 PM, Michael DeHaan wrote:
>> Sandor W. Sklar wrote:
>>> Hi, Folks ...
>>>
>>> I'm just starting to work with koan with the goal of deploying Xen 
>>> virtual machines. I've got my cobbler server set up and installing 
>>> physical systems, and its working great.
>>>
>>> I'm following the wiki page 
>>> <https://fedorahosted.org/cobbler/wiki/VirtNetworkingSetupForUseWithKoan>, 
>>> and at the top, it says "to take advantage of the --virt-bridge 
>>> parameter, please upgrade to 0.6.1 or higher.
>>>
>>> My "live" physical interface on this system is "eth2", and so with 
>>> the xen kernel, I've got the interfaces:
>>
>> It's an option in Cobbler, but not koan.
>>
>>>
>
> Hmm, ok, thanks ... that makes sense, but the wiki page clearly shows 
> it being used as an option to "koan" ...
>
> To force a specific choice, or to use a bridge that does not follow 
> the pethX/ethX convention, you can use --virt-bridge and specify the 
> name of any bridge you like. Note that this must be a /real/ bridge, 
> and not a physical interface.
>
> koan --server=bootserver.example.org --profile=RHEL5-i386 --virt 
> --virt-bridge=peth0

Yes, this was trimmed in a previous release. It's something we can 
consider adding back if it's useful, though in general I want to limit 
the amount of options we provide to koan to keep the focus around 
centralized management and repeatable profiles.

I believe this was pulled at the same time we added multiple virtual NIC 
support for cobbler (where you can specify dual homed virtual machines, 
etc), since then it would be possible to create a profile that required 
a specific number of NICs, and in that context, you could override it 
with an incompatible configuration (such as one NIC). However that's a 
shoot-foot scenario so I'm not sure the use case justifies removing the 
option.

Thoughts?
>
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