bug#51813: gdm: Unknown failure to launch after installation from guix installer

[Jacob Hrbek]

Steps to reproduce:
0. Get GIGABYTE M1022
1. Get the installer for i686-linux from https://ftp.gnu.org/gnu/guix/guix-system-install-1.3.0.i686-linux.iso e.g. using `wget wget https://ftp.gnu.org/gnu/guix/guix-system-install-1.3.0.i686-linux.iso`
2. Plug in the USB flash disk that will be used for the installation
3. Invoke `dd if=path/to/guix-system-install-1.3.0.i686-linux.iso of=/dev/sdX conv=sync progress=status && sync` wait for it to finish and then boot the device with it
4. Finish the installation and reboot
5. On startup the gdm fails with "Oh no! Something has gone wrong" telling you to contact yourself for help
6. Check log in `/var/log/gdm/greeter.log` and fail to find anything useful (see attachement)

FWIW: it seems like an issue with gdm on 32-bit system

FWIW: This system had issues with initial installation due to the lack of firmware e.g. requiring configuration of systemd on NixOS to avoid random suspends, see https://github.com/NixOS/nixpkgs/issues/130947

-- Jacob "Kreyren" Hrbek

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