Le 12/12/2020 à 14:15, Antony Stone a écrit : > Hi. > > I've just installed a couple of Beowulf systems, each of which has three > ethernet interfaces; one on the motherboard, and two on a PCI card. > > I'm trying to work out how to give those interfaces the names I want; the > motherboard as eth0, and the PCI card as eth1 / eth2. > > Historically, I've been used to udev and /etc/udev/rules.d/70-persistent- > net.rules doing this, where I can specify the name I want for each interface > according to its MAC address. > > The file didn't exist (although the directory did) on my Beowulf system, so I > created one with the appropriate contents, and I now get messages while the > kernel is booting: > > udevd[441]: Error changing net interface name eth2 to eth0: File exists > udevd[441]: could not rename interface '4' from 'eth2' to 'eth0': File exists > udevd[438]: Error changing net interface name eth1 to eth2: File exists > udevd[438]: could not rename interface '3' from 'eth1' to 'eth2': File exists > udevd[445]: Error changing net interface name eth0 to eth1: File exists > udevd[445]: could not rename interface '2' from 'eth0' to 'eth1': File exists > > I've followed the entire thread on this list from July 2018 about this, which > I've found _some_ of in the archives at > https://lists.dyne.org/lurker/message/20180715.200323.7a2473a2.en.html > however > that link shows only a very small proportion of the emails in the discussion > for some reason (I have my own local copy in my mail client). > > According to https://wiki.debian.org/NetworkInterfaceNames the old 70- > persistent-net.rules system _should_ still work in Buster / Beowulf, but I > can't work out how to get it to do so. > > I _have_ tried adding "net.ifnames=0" to the kernel boot line; this makes no > difference. > > So: > > 1. how can I get 70-persistent-net.rules to carry on working under Beowulf? > > 2. what's the "correct" way to get my interfaces named the way I want, > according to their MAC addresses, under Beowulf? > > (The above Debian wiki document indicates that Buster is the last release > which will continue to support this, so I'm assuming I'll need to do > something > else for Chimaera; what is it?) > > > Thanks, > > > Antony.
Udev has made a big effort to hide its action to the administrator. The rules have first been cached in /lib/udev; then the administerable files in /etc have been removed. Eudev keeps a track of the names it has already assigned to interfaces, in /lib/udev/rules.d . Maybe you can find something concerning your ethernet interfaces in one of these files and maybe your problem is just that Eudev doesn't want to overwrite that file; therefore you might try to delete it (rename it for safety). I don't grant it works; but this is one thing I would try. -- Didier _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
