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. -- Numerous psychological studies over the years have demonstrated that the majority of people genuinely believe they are not like the majority of people. Please reply to the list; please *don't* CC me. _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng