<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - udev makes network interfaces available before it has renamed them" href="https://bugs.freedesktop.org/show_bug.cgi?id=56929#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - udev makes network interfaces available before it has renamed them" href="https://bugs.freedesktop.org/show_bug.cgi?id=56929">bug 56929</a> from <a class="email" href="mailto:kay@vrfy.org" title="Kay Sievers <kay@vrfy.org>"> Kay Sievers</a> <pre>Short version: The rule will not work any more, and cannot be made working with systemd. The rules need to use names now which do not use kernel names like ethX. Biosdevname *should* work fine, even without "BIOS support" in that sense. It should be able to calculate a predictable name based on the physical location of the hardware, at least if PCI/USB hardware is used. Long version: We do no longer support renaming network interfaces in the kernel namespace. Interface names are required to use custom names that can never clash with the kernel created ones. We do not support swapping names; we cannot win any race against the kernel creating new interfaces at the same time. We do no longer support the creation of udev rules from inside the hotplug path. It was pretty naive to ever try this in the first place, it all is a problem that cannot be solved properly, and which creates many more new problems than it solves. The entire udev-based automatic persistent network names is all just a long history of failures, it pretended to be able to solve something; but it couldn't deliver. We completely stopped pretending that now, and need to move on to something that can work out in a reliable and predictable manner. Predictable network interface names require a tool like biosdevname, or manually configured names, which do not use the kernel names.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>