On Tue, Mar 21, 2017 at 09:45:24PM +0100, Baptiste Jammet wrote: > Hi Vince, > > Dixit Vincent McIntyre, le 20/03/2017 : > > >> +<term>ifname instead of mac address</term> > ... > >Not having really worked with stretch yet (ie target audience member), > >I'm had no real idea what this meant when I first read it. > Found in the Alpha 1 release annoucement: > https://www.debian.org/devel/debian-installer/News/2015/20150721 > linking to this thread: > https://lists.debian.org/debian-devel/2015/05/msg00170.html >
Thanks for the background. I now see the terms 'ifname' and 'mac' have special meanings in this context. That's quite a thread to plow through but worth the read. Round 2 is here http://lists.debian.org/debian-devel/2015/06/msg00018.html But I failed to find the final resolution of this on a mailing list, the last word seems to be the Alpha 2 announcement https://www.debian.org/devel/debian-installer/News/2015/20150815 So let's take the version 2 proposal and try to work with that. +<!-- new in Stretch--> +<varlistentry> +<term>New method for naming network interfaces</term> +<listitem> +<para> +The installer and newly installed systems will use a different +naming scheme for network interfaces instead of eth0, eth1 etc. +The old naming method suffered from enumeration race conditions +that made it possible for interface names to change unexpectedly +and is incompatible with mounting the root filesystem read-only. +The new enumeration method relies on more sources of information, +to produce a more repeatable outcome. It uses the firmware/BIOS +provided index numbers and then tries PCI card slot numbers, +producing names line ens0 or enp1s1 (ethernet) or wlp3s0 (wlan). +USB devices, which can be added to the system at any time, +will have names based upon their ethernet MAC addresses. +</para> +<para> +This change does not apply to upgrades of jessie systems, +the naming will continue to be enforced by +/etc/udev/rules.d/70-persistent-net.rules. +For more information, see /usr/share/doc/udev/README.Debian.gz +</para> +</listitem> +</varlistentry> > I understand it as: Network interfaces will be named using their > firmware/BIOS name, or their physical location, or using a static > mapping (as before). This won't depend on the discoveriong order. > This won't apply for the upgrade. > (I see it as the /dev/hdXY -> UUID transition) My suggested text above is far from the final word here and I have questions: * Is it even accurate? * How are the firmware/BIOS and PCI slot methods that were discussed related to the NamePolicy methods in the udev file: NamePolicy=kernel database onboard mac * Is biosdevname still out of the picture? Cheers Vince PS it would be nice to have a cumulative list of all changes (wiki?) as well as the debian-installer/News items. Happy to help with setting something up if I can.
