FAI with pre-release bullseye yielding inconsistent network names

[Steffen Grunewald]

On Thu, 2021-01-14 at 12:19:30 -0800, fai1107 at macrotex.net wrote:
> I am attempting to build Debian "bullseye/sid" (pre-release bullseye) using
> FAI 5.9.4. The network interface names come out being inconsistet,
> 
> In /sys/class/net I see
> 
> lo
> ens192
> 
> but in /etc/network/interfaces.d I see
> 
> lo
> enp11s0
> 
> ------
> 
> Here is (some of) the output of "udevadm test /sys/class/net/ens192":
> 
> INTERFACE=ens192
> IFINDEX=2
> ID_NET_NAMING_SCHEME=v247
> ID_NET_NAME_PATH=enp11s0
> ID_NET_NAME_SLOT=ens192
> ...
> ID_NET_NAME=ens192
> 
> So, something in the FAI build process thought the name was "enp11s0" and
> created the file with that name in /etc/network/interfaces.d.
> 
> Any suggestions?

In the class/ stage, I create an udev rule that falls back to the old
interface names.
Since I usually perform a "sysinfo" run first, this rule can get merged
into the config tree in time before the installation.

I know that's deprecated but it's least surprising (at least to me).

- S