Hallo Mathieu,

Thank you so much for your effort. 
I already managed the installation by burning the iso directly to my usb drive and not via Ventoy. 
Everything works fine. 
I should have try this in the first place. Sometimes the ways of the lord gnu are inscrutable. 

Big thanks again and a warm regards to you and your team. 

Typ. 


Mathieu Othacehe <othacehe@gnu.org> schrieb am Mi. 7. Dez. 2022 um 10:31:

Hello,

So I had a closer look and we do have this strange kernel warning:

--8<---------------cut here---------------start------------->8---
Dec  4 10:49:05 localhost vmunix: [ 1351.610773] device-mapper: ioctl: remove_all left 1 open device(s)
--8<---------------cut here---------------end--------------->8---

I also noticed that we do not have the following trace:

--8<---------------cut here---------------start------------->8---
/dev/sdX is not eligible because it is the installation device.
--8<---------------cut here---------------end--------------->8---

which indicates that the "eligible-devices" procedure failed to identify
the installation device. So /dev/sdd could be the installation device
and the "with-delay-device-in-use?" always reports true because it is in
fact always in use.

My proposed patch probably won't help and the question is, why is the
installation device not detected?

Would it be possible for you to try the installation with an
instrumented installer that I would provide you with?

Thanks,

Mathieu