Hi again, I was not able to boot this way. I tried then to do all the stuffs (update to latest 28 ) with a rpi2 and it worked. But when I try to boot this sd card on the rpi3b+ it is not working. I can see the EFI boot + grub menu. Then the screen goes black and nothing more. How can I try to understand what's going on ? Thanks Fox _______________________________________________ arm mailing list -- arm@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to arm-leave@xxxxxxxxxxxxxxxxxxxxxxx