Michael DeHaan wrote : > >> Cobbler is designed for central configuration, so it can be your MAC > >> database. > > > > Can it really? For Xen guests? > > Yes. > > koan --virt --system=AA:BB:CC:DD:EE:FF --server=cobbler.example.org Hmmmm, indeed, this works, but this makes things uglier for me. Renaming my system from 'test' to '00:16:3e:01:ec:2e' in Cobbler and using --system=00:16:3e:01:ec:2e instead of --system=test makes the virtual guest get the intended the MAC address, but : - I now have a system called '00:16:3e:01:ec:2e' in the WebUI instead of the much more human friendly 'test'. - I now have a Xen guest called '00_16_3e_01_ec_2e' instead of the much more human friendly 'test'. When I run 'xm list' and see a bunch of host names, it's much quicker for me to stop/restart/connect-to any of the guests than with having a list of 00_16_3e_xx_xx_xx entries :-/ Same for the WebUI... So it seems to me that there is too much logic on the Koan side, which makes it impossible to use a friendly name and have it use the MAC address configured in the Cobbler. > > 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? The 0.6.2-1 you posted yesterday. But see above : Invoking the system by "friendly name" gets a random MAC address, even if the system has a MAC address configured in Cobbler, but renaming the system to its MAC address "fixes" 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 > abstraction. I don't want to override anything on the koan command line. I'm more than fine with having everything in Cobbler! But in my case, I'd need my profile to be : - virt_path: /dev/data/$name,/dev/data/swap$name (I'm not sure if this can be done, I can live with overriding it in all system configurations, which is what I've done for now) - virt_ram: 512 Then the default system associated to be : - virt_path: <<inherit>> - virt_ram: <<inherit>> ...where I only change the name, hostname and MAC address. Here I'd like to be able to change virt_ram on a per-system basis, but it doesn't seem possible currently (or maybe I just need to "manually" add it to the system file?). In my scenario, we're not talking about thousands of servers, more like a few dozens in each location, with locations being very remote and having each their own cobbler instance, so I'm thinking about creating a system entry in Cobbler for each and every host and guest I have. Obviously, they'll all inherit most of their configuration from a given profile, but I'll need to override some settings here and there. Matthias -- Clean custom Red Hat Linux rpm packages : http://freshrpms.net/ Fedora release 7 (Moonshine) - Linux kernel 2.6.22.6-81.fc7 Load : 0.54 0.46 0.37 _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/et-mgmt-tools
