Installation halted libxenlight domain sys-net

I’ll test it out, but first i’ll attempt another methods before installing anything via network(i think my network is compromised)
I updated the bios and now following these guidelines >> Nvidia Troubleshooting Guide

My vault qubes itself boot well(although i cannot sync the application), which means lack of virtualization is not a problem but i can’t use neither sys-net nor sys-usb. Since i cannot boot sys-usb, if i add usb device to sys-usb qube and reboot it disables the keyboard/mouse input. Sys-usb and sys-net are both qubes using “provides network to other qubes”.

Chances are my dual nvidia p40 graphics are problem, i’m currently learning how to follow the guidelines but they are pretty hard to follow… I’ll come back soon.

Now i’m reading this :
Boot failure after GRUB menu / System freezes followed by reboot
Lack of video output during Nvidia driver installation

Especially lack of video output seems my problem, after i type sudo nano /boot/efi/EFI/qubes/xen.cfg i see literally nothing.