Hey, i have the same problems and Qubes 4.0 not want boot from the USB Device.
For this probleme i install Fedora on Virtualbox and copy the Image with the command "dd if=Qubes-R4.0-x86_64.iso of=/dev/sdb bs=1M && sync" successfully on my device. The probleme by this the Stick boot and i can see some Linux commands. After this, the screen is only black and nothing happened. This are my Bios settings: https://picload.org/view/dorgorpl/img_2 ... 4.jpg.html https://picload.org/view/dorgorpi/img_2 ... 9.jpg.html Hope, that someone can help. regards -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/a46ed624-be7b-4d04-86a4-26bee18d8c8a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.