> On 15 Dec 2019, at 00:51, Bernard Rosset via Dng <dng@???> wrote:
>
> Having migrated from buster to beowulf, using wicd as the network manager, how does one rename network interfaces from "persistent names" to old, numbered, ones?

https://unix.stackexchange.com/questions/321755/eth0-no-longer-claiming-address-on-debian-jessie

Add net.ifnames=0 to grub command line.

Optionally add biosdevname=0 if you have biosdevname installed.

—Tom