Hello Just for your information.
I managed to get all grub packages grub2-common grub-common grub-efi-amd64 grub-efi-amd64-bin grub-efi-amd64-signed updated to 2.12~rc1-7 and the system DOES NOT BOOT. I downgraded all those grub packages to 2.06-3~deb11u5 (the one found in stable) and it boots without problems. So, I'm concerned if the 2.12~rc1-9 version will boot on my machine.
