Bug#1111994: console-setup-udeb: Canadian Multilingual breaks keyboard selection

[Samuel Thibault <sthibault@debian.org>]

Hello,

Pascal Hambourg, le dim. 24 août 2025 22:56:50 +0200, a ecrit:
> In Trixie graphic installer, selecting the "Canadian Multilingual" keyboard
> layout fails with a user-visible error, and subsequent attempts to select
> any keyboard layout fail with the same errors on screen and in syslog.
> syslog: "Error loading new keyboard description".
> 
> In Trixie text installer, selecting the Canadian Multilingual keyboard
> silently fails,

Indeed, apparently xkb dropped the multi variant on

commit d46d0f40afb8cb7842959bdd15dfccbc9c041493
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Fri Jul 1 10:41:34 2022 +0200

    symbols/ca: delete the old implementation of the Canadian CSA layout

So we need to make console-setup use the multix variant instead.

I'll be easy to backport the fix to trixie.

Samuel