On Mon, Aug 30, 2021 at 10:20:46PM +0200, Steve Keller wrote: > I plan to upgrade a server from Debian stretch to buster. Having read > the release notes I wonder what's the best way to avoid the new scheme > of unpredictable network interface names. > > I don't care what PCI bus and what slot my NICs are attached to, I > don't want to learn and don't want to have to remember this hardware > configurationan and I don't want to type these cumbersome and error > prone names. I simply have eth0 for the internal network and eth1 for > my external network to the DSL router. That's easy and I want to keep > it that way. > > The Debian wiki on this shows several ways involving kernel cmdline, > udev, and systemd. I've read it, I've also read some of the sparse > and incomplete systemd documentation for almost an hour. Still I > don't know when and what software component (kernel, udev, systemd) > decides the NIC names and whether and in which way these conflict each > other. [1] > > Also, after reading the wiki it's still unclear to me, which of the > several ways will survive the next upgrade to bullseye. > > The safest way seems to be what's called "Custom schemes" but this > section explicitly states the names eth0, etc. shouldn't be used. > > So I'm still confused what to do after the upgrade to buster to keep > my network names. >
Since nobody else has mentioned this link, here is where I recommend you start: https://wiki.debian.org/NetworkInterfaceNames Regards, -Roberto -- Roberto C. Sánchez
