Igor, Again, thanks for the tip. Not a udev issue (no udev/or config file on the guest) so it is back to manipulating the MAC by hand.
DAVID On Mon, Apr 18, 2011 at 6:34 PM, Igor Serebryany <igo...@moomers.org> wrote: > On Sat, Apr 16, 2011 at 04:21:19PM -0400, David Lane wrote: > > I attach an existing .img file to the host machine and need to change the > > MAC address (since the image was created on another machine). Is there a > > way from with in the guest to do this or do I have muck with the XML? > And > > if I muck with the XML and change it, how do I pass this information up > to > > the guest, or will the guest see it automagically or do I have to write > it > > down and then manually transfer it into the guest's ifcfg? > > The only way to change what MAC address the interface shows up with is > to tell libvirt about the MAC you want, usually via the XML. There might > be a way to change it after a domain is defined, but I'm not sure. > > > Using the GUI, when you change the NIC, the guest generally does not > > see the new MAC and grouses until you change it. > > What do you mean by grouses? If you change the MAC in the XML, when your > domain boots it will see an interface with that MAC. > > Do you mean that your interfaces don't come up with proper configs? Then > your problem might be udev's persistent net rules. You have config files > which assign IPs to eth0, for instance, but when you change the MAC > address in the XML, eth0 disappears and you instead get an eth1 which > comes up configured. > > I solve this problem by removing any persistent network name rules from > udev. You can usually find a config file that controls such things in > /etc/udev/rules.d > > --Igor > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > > iEYEARECAAYFAk2svIgACgkQVyVcp2k8D/lgjwCgpb1scQCh5ACHebdMpZb2OZvU > dX4AnjpAOha8ELRgU+ObS+eGoAKzrHPO > =3WfH > -----END PGP SIGNATURE----- > >
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