Add complete Secure Boot implementation:
- Generate PK/KEK/db keys during ISO build
- Build Unified Kernel Image (UKI) bundling kernel+initramfs+cmdline
- Sign UKI with db key for Secure Boot verification
- Include kernel lockdown mode in cmdline (lockdown=confidentiality)
- Copy .auth files to ISO for UEFI key enrollment
All Secure Boot logic is embedded in run.sh as an inline binary hook
created during the Docker build process - no separate scripts.
Required packages added: efitools, sbsigntools, systemd-boot, binutils
VM template updated with TPM v2.0 for Secure Boot measurements.
💘 Generated with Crush
Assisted-by: GLM-4.7 via Crush <crush@charm.land>
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