# ubuntu approach: shimx64.efi.signed = /usr/lib/shim/shimx64.efi.signed from http://de.archive.ubuntu.com/ubuntu/pool/main/s/shim-signed/shim-signed_1.34.9+13-0ubuntu2_amd64.deb grubx64.efi.signed = /usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed from http://de.archive.ubuntu.com/ubuntu/pool/main/g/grub2-signed/grub-efi-amd64-signed_1.103+2.02+dfsg1-5ubuntu1_amd64.deb