On the hardware I am working on, I can see the grubx64.efi file:
but cannot find the shim file. After UC20 started up, I find the shim file in gadget folder. We also tried mokutil but it returns:
sudo test-snapd-mokutil --sb-state
This system doesn't support Secure Boot
How does Secure Boot work in UC20? Is this a secure boot in my image? Or we need to copy signed shim and grub file to the EFI partition?