On 03/05/2025 at 20:49, Esteve Fernandez wrote:

debian-live-testing-amd64-gnome.iso with live GNOME session and clicking on the 
"Install Debian" - OK

Copies the live system with firmware to the installed system, xe will not hang.

debian-live-testing-amd64-gnome.iso with either Graphical installer or Text 
installer via the boot menu - OK

Also copies the live system with firmware to the installed system, xe module will not hang.

debian-testing-amd64-DVD-1.iso with either Graphical installer or Text 
installer, installing only system utilities - Does not install a working system.

Does not install firmware-intel-graphics because of the missing modalias, loading xe module will hang.
Does not install plymouth, xe module is not included in initramfs.

   - Passing systemd.unit=emergency.target via boot arg opens a
     console.

Emergency mode does not start udev, so xe module is not loaded.

   - Passing systemd.unit=rescue.target via boot arg does not open
     a console.

Rescue mode starts udev, so xe module is loaded and hangs.

debian-testing-amd64-DVD-1.iso with either Graphical installer or Text 
installer, installing system utilities and GNOME - Does not install a working 
system.

Does not install firmware-intel-graphics because of the missing modalias, loading xe module will hang.
Installs plymouth, xe module is included in initramfs.

   - Passing systemd.unit=emergency.target via boot arg does not
     open a console.
   - Passing systemd.unit=rescue.target via boot arg does not open
     a console.

xe module is loaded by the initramfs and hangs before systemd is started.

This confirms my previous guess. So there are two issues:
- the GPU modalias is missing in firmware-intel-graphics.patterns so d-i does not install the firmware; I do not know how this file is generated.
- xe module hangs if related firmware is missing -> kernel bug.

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