Comment by b112

For those worrying about the NIC change with systemd, this comes from the release doc:

https://www.debian.org/releases/trixie/release-notes/issues....

  # example:
  udevadm test-builtin net_setup_link /sys/class/net/eno4 2>/dev/null
  ID_NET_LINK_FILE=/usr/lib/systemd/network/99-default.link
  ID_NET_LINK_FILE_DROPINS=
  ID_NET_NAME=eno4  <-- note the NIC name that will happen after reboot

Here's a one-liner, excluding a bond interface and lo. Gives a nice list of pre and post change.

  for x in $(cat /etc/network/interfaces | grep auto | cut -d ' ' -f 2 | grep -Ev 'lo|bond0'); do echo -n $x:; udevadm test-builtin net_setup_link /sys/class/net/$x 2>/dev/null | grep NET_NAME| cut -d = -f 2; done

The doc's logic is that after you've upgraded to trixie, and before reboot, you're running enough of systemd to see what it will name interfaces after reboot.

So far I have not had an interface change due to upgrade, so I cannot say that the above does detect it.