# this is a simple test to identify whether it looks like the Secure Boot enabled/signed # GRUB is running or if it's a full featured GRUB version, the former doesn't # fail with invalid usage, while the later will fail with "error: device name required." if probe ; then echo "It looks like Secure Boot is enabled." set grml_secureboot=true export grml_secureboot else echo "It looks like Secure Boot is NOT enabled." set grml_secureboot=false export grml_secureboot fi