- scripts/secureboot/gen-keys.sh: generates a Machine Owner Key pair
(MOK.priv / MOK.pem / MOK.der) for self-signing the boot chain.
- scripts/secureboot/sign-image.sh: signs kernels and EFI binaries
(already-signed files skipped) with sbsign.
- arcline-mok-enroll.service (+ script): one-time MOK enrollment at first
boot via mokutil; no-ops when no key was shipped.
- build-iso.sh: ARCLINE_SIGN=1 signs the live boot chain and ships the
public MOK in the image. Smoke test now asserts the enroll unit exists.