Re: iwd + systemd-networkd + resolvconf wrinkles
On Fri 18 Mar 2022 at 20:57:38 (+0000), Brian wrote:
> On Sun 13 Mar 2022 at 20:04:06 -0500, David Wright wrote:
>
> [...]
>
> > Install iwd, and resolvconf if necessary. You may then need to reboot
> > if the wifi interface has already been renamed by the kernel, ie if
> > it's not wlan0. (With buster, there's a missing file that needs adding
> > first; see below).
>
> It is systemd/udev that renames the interface.
Sorry, I was paraphrasing my notes and accidentally missed a bit out.
It should have said: "if the wifi interface has already been renamed
from the kernel's name", whereupon the id est makes sense.
> This is standard procedure.
I would say no more than that systemd and udev have reached a truce
on how and what to rename an interface to.
> iwd decides it knows better and, no matter what, does
> it. I have never met this sort of behavior with wpasupplicant.
>
> So we will be more forceful and have
>
> net.ifnames=1
>
> on GRUB's kernel command line. My choice is ignored by iwd. Why does
> it not want an interface to be renamed by systemd/udev?
https://iwd.wiki.kernel.org/interface_lifecycle
explains iwd's philosophy on interfaces, and the last section covers
why it's not desirable for udev to attempt to rename them.
Cheers,
David.
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