Dear Reader,

0 The troubles happen on a new and empty machine (specially bought for Debian)
:
- Intel Core i3-10100
- Gigabyte B560 HD3
- Kingston Fury beast 16 Go
- Crucial P2 M.2 PCIe NVMe 500 Go (SSD)

1 I download debian-live-11.0.0-amd64-gnome.iso, put it on a key and execute
the whole graphical installation.
It works fine but when the machine starts to reboot
- few lines appear very very fast (RAM something, processor something ...) and
then
- black screen with only a cursor in the top left quarter for 2 seconds and
then
- back to bios where I see the ssd disk with the right name, manually exit and
then
- few lines appear ...
- black screen ...
and again and again
The only possibility was to power off.


2 I download debian-11.0.0-amd64-netinst.iso, put it on a key ..
It works fine but ...
Same story as 1.
I install 2 other times but the result remains the same.


3 I use reportbug (#995089) but not knowing the name of the package the answer
starts with "There is no such package in Debian".
The suggestion is to use an installer containing firmware.


4 I download firmware-11.0.0-amd64-netinst.iso an start graphical installation.
Things start the right way but the mirror gets slower and slower and completely
stops to send files.
I wait 2 hours but nothing happens.
I power off the modem and disconnect the cable of the machine.
The screen offers no possibility to stop the running operation so I can only
power off the machine.


5 Then modem on, cable connected, key always in its proper place, machine on
- first of all, very fast on black screen something like "hardware error cpu
machine check" and 3 or 4 other lines talking about hardware
- bios, key was always selected
- installing starts but is not able to deal with dhcp
- many tries (even debian-live-11.0.0-amd64-gnome.iso again) but the installer
does not see the network card anymore
- the bios sees the card, so it looks like installer and card don't like each
other

When the key is in its place I found that there is a little console (Nano) but
I don't know what to do with it (reach logs, clean, ...)
I have the datasheet of each component.

Programmer during the last 35 years (tons of SQL on W machines), but new in
Debian (04/2021, Debian GNU/Linux 10 (buster) on a W7 existing machine).
I want to stay in this free software and try to help (Diversité et équité).


Many thanks
Renaud Roche (Marseille France)