On Monday, April 23, 2018 at 8:21:01 AM UTC-4, [email protected] wrote:
> 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

I finally found a resolution for this. There is a doc in Qubes that discusses 
how some firmware will not recognize the default Qubes EFI configuration. Here 
is what makes the computer boot the drive after installing qubes to a USB:

Rename the qubes EFI folder:
sudo mv /boot/efi/EFI/qubes/ /boot/efi/EFI/BOOT

Rename the two files:
sudo mv /boot/efi/EFI/BOOT/xen.efi /boot/efi/EFI/BOOT/BOOTX64.efi
sudo mv /boot/efi/EFI/BOOT/xen.cfg /boot/efi/EFI/BOOT/BOOTX64.cfg

Now when you restart the computer and choose the USB drive in the BIOS, it will 
boot the USB drive into Qubes.

FYI, there is a warning in the document that this may need to be done again 
after every kernel and Xen update. I sure hope Qubes developers fix this. If an 
update occurs and you restart before making these changes you won't be able to 
boot back up onto the USB again to make the changes! A reinstall is in you near 
future!

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