No, these are different bugs I think, though they relate to the same sort of issue.
Bug 726635 says that even on conventional (non-UEC) images, MAC addresses ranges used by Virtualbox should be ignored in the persistent udev rules. That's fair enough, though I note Xen and KVM were treated differently last time I looked (Xen is triggered by subsystem, which fails to match HVM emulated net devices but matches PV on HVM devices). This bug says that on a UEC image, then by definition ANY udev persistent net rules handling is unnecessary and can only cause problems. The net interfaces are ALWAYS virtual, and may do things which are unexpected and undesirable in certain environments. An example is where the image comes up with a different MAC address when booted on a different compute node/cluster that provides a different MAC range; this is just about guaranteed to happen if you move an image with a persistent boot disk between one cloud and another. Another example of it causing problems is running on older Xen (see above). So on the UEC image persistent interface naming should always be disabled, irrespective of MAC address whitelist and subsystem checking (which is not reliable). I believe Scott Moser at Canonical has had problems too (I'm not sure precisely what); he encouraged me to report this so he may be able to add detail. A less drastic alternative to completely disabling it would be to look at something in /etc/defaults which could then be used by people running non-UEC images on virtual systems too. I'm not sufficiently familiar with udev language to know how that could be incorporated into lib/udev/rules.d/75-persistent-net-generator.rules -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to cloud-init in ubuntu. https://bugs.launchpad.net/bugs/724601 Title: UEC images should disable udev persistent net rules -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
