On Tue, Aug 31, 2021 at 01:32:32PM +0300, Andrei POPESCU wrote: > On Lu, 30 aug 21, 16:41:39, Greg Wooledge wrote: > > 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. > > > > You say "server", so I'm guessing it has more than one NIC. That means > > the old way (net.ifnames=0) is not viable. > > > > Your best strategy is to create systemd.link(5) files, and give the NICs > > the names you want them to have, based on their MAC addresses. > > > > For example: > > > > unicorn:~$ cat /etc/systemd/network/10-lan0.link > > [Match] > > MACAddress=18:60:24:77:5c:ec > > > > [Link] > > Name=lan0 > > Another completely different approach is to use some other tool to > configure your network that can match on MAC address and just ignore the > names completely.
Surely you meant ifupdown. auto mac/ab:cd:ef:12:34:56/=eth0 iface eth0 inet static address 192.168.1.123/24 gateway 192.168.1.1 dns-nameservers 192.168.1.1 And there's a small bonus of having to enable systemd-networkd and optionally systemd-resolved. This example was helpfully provided by /usr/share/doc/ifupdown/examples/pattern-matching. Reco
