[bug#63508] [PATCH 3/3] gnu: eudev: Always use MAC-based names for network interfaces.

[Felix Lechner]

Hi Liliana,

Thank you for your review!

On Sun, May 14, 2023 at 9:31 PM Liliana Marie Prikler
<liliana.prikler@gmail.com> wrote:
>
> Wherefore the regexp-quote?

Whoops! That was left over from the attempt to get udevadm to use
/etc/udev/rules.d as it should. Thanks for the pointer!

> I don't see how this change allows users *or upstream package
> maintainers* to continue using onboard names as they have done for ages
> and as they would want to continue to do.

I have one of those cards. While the interface name did not change
when I fiddled with the PCI configuration, I am not sure that
prioritizing ID_NET_NAME_ONBOARD over ID_NET_NAME_MAC is a reasonable
default for Guix.

To rank ID_NET_NAME_ONBOARD below ID_NET_NAME_MAC would not address
the shortcoming you perceived because the latter always exists.

Instead, I think people wishing to use ID_NET_NAME_ONBOARD should
install a custom udev script (and those should be recognized by the
udevadm we ship).

> a) File a patch upstream to add ID_NET_NAME_MAC into net-name-
> slot.rules

If upstream accepts such a patch, I believe they would give
ID_NET_NAME_MAC the lowest possible priority, but that does nothing
for Guix. Common relative priorities are outlined here. [1]

For Guix, I think we would like to see ID_NET_NAME_MAC at the top.

Kind regards
Felix

[1] 
https://wiki.debian.org/NetworkInterfaceNames#How_to_migrate_to_this_scheme_on_upgraded_systems