Secure Boot and FDE cannot work with new dualsign boot file

Hi there,

Recently the gadget build failed with the new shim-signed package. After changed the old signed to dualsigned the snap build can work but Secure Boot and FDE failed in a new uc20 image.

Here is the recent change in pc-gadget repo: https://github.com/snapcore/pc-gadget/blob/20/snapcraft.yaml#L87

I tried to copy the signed and grub boot files after downloaded and unsquashed the pc-gadget snap but FDE didn’t work either. Anything else I can do? Thanks :slight_smile: