[martinqc101]

Thank it work!

I updated my Pather Chromebox firmware. I install the UEFI Firmware. After i installed Ubuntu 16.04 but when i boot it it stuck on the EFI Shell with Device mapping table.

i can manually start Ubuntu with this command :

fs0:
cd efi
cd Ubuntu
grub....efi

but how to load Ubuntu in boot without command?

i have tried to play in the 'bios' options... i found to start Ubuntu with...but i have to do it each time...i save configuration...but it loose it each time.

if i don't find solution for this...i will try find how to go back to the legacy boot.

a other think i tried it to use the boot-repair tool...but it failled to.

boot Ubuntu manually, then from a shell terminal:
sudo su
mkdir /boot/efi/EFI/BOOT
cp /boot/efi/EFI/ubuntu/grubx64.efi /boot/efi/EFI/BOOT/BOOTX64.efi

then reboot.