Issues with GRUB 2.12 Loading Signed Linux Kernel

[haobinnan]

I previously used GRUB 2.06 and now need to upgrade to 2.12. However, during the Linux kernel loading stage, I receive this message. Could you please explain what might be causing this issue? The Linux kernel has also been signed.

[haobinnan]

[haobinnan]

[haobinnan]

@steve-mcintyre

Thank you very much; I hope you can guide me on this. The same kernel works fine with GRUB 2.06 without any error messages, but after upgrading to 2.12, the error appears. Below is the code address: https://git.launchpad.net/ubuntu/+source/grub2/tag/?h=import/2.12-5ubuntu4

[haobinnan]

grub2 menu.cfg

insmod part_gpt
insmod part_msdos
insmod png
insmod all_video
insmod gfxterm

loadfont $prefix/font.pf2

set timeout=0
set default=0
set gfxpayload=1024x768

menuentry 'EassosRestore' {
if cpuid -l; then
echo 'Loading ...'
linux /EassosRestoreBoot/bzImage loglevel=3
initrd /EassosRestoreBoot/initramfs
else
echo 'This CPU is not compatible with 64-bit mode.'
sleep 3
reboot
fi
}

[haobinnan]

When using GRUB 2.12, do you need to apply any additional patches to the Linux kernel?

[kukrimate]

Are you building the peimage module into your GRUB?

Also you need to have EFI stub enabled in your kernel Kconfig to boot.

[haobinnan]

Thank you very much! The issue was that my GRUB2 didn't include the peimage module. After including peimage, it booted normally.
@kukrimate