Hello,

I have migrated my work-in-progress project, adding a new mainboard,
from coreboot v4.12 to v4.13 and now the boot using Tianocore is now
broken!

Under v4.12 it would boot into Ubuntu but under v4.13 it is just putting
me at a menu screen with three options: “Default Boot”, “Boot Menu” and
“Boot Manager”.  If I choose “Boot Menu” it doesn’t list any boot
devices.

Uisng "Boot Manager” -> “Boot from file” I can navigate into one of the
NVMe partitions and down the folders efi/boot/bootx64.efi and that will
boot into Ubuntu via the following messages being shown on the screen:

System BootOrder not found. Initialising defaults.
Creating boot entry “Boot0004” with label “ubuntu” for file
“EFI\ubuntu\shimx64.efi”
Could not create variable: Device Error

When I reboot I just get back to the menu screen.

I’m guessing there is a ne option in v4.13 that needs to be set or there
is something that has changed v4.12 -> v4.13 but half a day of staring
at it hasn’t shown it up.  Given the messages are referring to
shimx64.efi I guess it is something to do with secure boot.

-Andy.
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