[et-mgmt-tools] Cobbler and Koan for _my_ needs

Michael DeHaan mdehaan at redhat.com
Thu Sep 27 14:26:04 UTC 2007

Matthias Saou wrote:
> Michael DeHaan wrote :
>> Cobbler is designed for central configuration, so it can be your MAC 
>> database.
> Can it really? For Xen guests?


koan --virt --system=AA:BB:CC:DD:EE:FF --server=cobbler.example.org

> I've played some more with Koan and Xen guests, but apparently even
> telling Koan to install a system which has a specific MAC address in
> its Cobbler system details creates the Xen guest file with a random MAC
> address. 

What cobbler and koan version is this?

> My DHCP server has only static entries, which means that if
> Koan used the MAC address I've put in the Cobbler system it would work,
> but the random MAC address won't ever be able to get an IP address (and
> this corporate network _must_ stay this way).
> Using Koan's "--display", it does seem like the MAC address isn't
> obtained from Cobbler.
> Am I maybe simply doing something wrong?
> On a related note, I do see "virt_path" and "virt_type" in the Cobbler
> systems, but I don't see "virt_ram", which would be very useful to be
> able to set on a per-system basis in my case.

Conceptually, profiles are there to describe what the purpose of the 
system is and it's requirements.
If a profile states that a configuration needs "X" amount of RAM, it is 
important to honor that.

The overrides on storage are for cases such as a development profile 
being created centrally, and the local user
wanting to install it in a different location (for instance, say they 
had a large partition on the domU they wanted
to use).

Overriding the amount of virtual RAM on the koan command line is 
possible, but we do not want folks
thinking of RAM requirements for individual systems because that defeats 
the point of the profile

> Matthias

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