I just "create" one with the following script. #! /usr/bin/python # macgen.py script generates a MAC address for KVM guests # import random mac = [ 0x54, 0x52, 0x00, random.randint(0x00, 0x7f), random.randint(0x00, 0xff), random.randint(0x00, 0xff) ] print ':'.join(map(lambda x: "%02x" % x, mac))
Then when I define my system I put that in the networking section, cobbler will make sure none of your macs are duplicates. -Jacob On Tue, Aug 24, 2010 at 3:58 PM, Ian Marlier <imarl...@brightcove.com>wrote: > Hi, all -- > > I'm doing some work to get koan provisioning virtual machines in my > environment at the moment, and am running into some trouble. Specifically, > I can't figure out how to actually give the virtual machine an IP address. > > I do not allow DHCP except to registered clients -- that is, the DHCP > config has a 1:1 mapping of MAC addresses to IP addresses, and there are no > "anonymous" addresses available. For machines provisioned with cobbler > directly, this is no problem, since the dhcpd.conf file is regenerated > (including these mappings) each time I sync. However, for virtual machines, > the MAC address is not known until I run koan on the host system, and it > appears that the MAC address is not updated in cobbler. As a result, the > virtual machine boots but fails to get an IP address assigned to it, and > thus cannot get its kickstart file or build. > > Is there a way to either: > - Tell koan to "push" a static IP address config based on cobbler's > metadata about the virtual machine; or > - tell cobbler to take the MAC address that is assigned to the virtual > machine and sync, in order to create a dhcpd.conf file with the correct > mapping of MAC to IP address? > > I've googled around, and it appears that most people get around this by > having an open DHCP range. Are there other approaches that people have > taken to this that I'm just not seeing? > > Any thoughts/pointers are appreciated. > > - Ian > > _______________________________________________ > cobbler mailing list > cobbler@lists.fedorahosted.org > https://fedorahosted.org/mailman/listinfo/cobbler > >
_______________________________________________ cobbler mailing list cobbler@lists.fedorahosted.org https://fedorahosted.org/mailman/listinfo/cobbler
