035518ff69
Support for UEFI Secure Boot is modelled after how it currently works in Ubuntu and on how it is going to work on Debian. A minimal bootloader, shim, is used as the first-stage and it then loads grub. Both have to be signed. shim-signed is already available in Debian so the filenames are already established, and the grub2 repository and packaging is common between the 2 distros so we can already be reasonably sure of what it is going to be. So if both are available, copy /usr/lib/shim/shim[x64|aa64].efi.signed as boot[x64|aa64].efi so that UEFI loads it first, and copy /usr/lib/grub/[x86_64|arm64]-efi-signed/grub[x64|aa64].efi.signed as grub[x64|aa64].efi. This grub2 EFI monolithic image is currently hard-coded in grub2's repository to look for a config file in efi/debian, so make a copy of the previously added minimal grub.cfg that loads the real one in that directory in both the fat32 and ISO 9660 partitions. The new option --uefi-secure-boot can be set to auto (default, enable or disable. In auto, the lack of the signed EFI binaries is intentionally left as a soft failure - live-build will simply fallback to using the locally generated non-signed grub2 monolithic EFI binary as the only bootloader. Given the difficulties surrounding the Secure Boot signing infrastructure this approach gives the most flexibility and makes sure things will "just work" once the packages are available, without the need to change anything in the configuration. This will also greatly help downstream distributions and users who want to do self-signing. The enable or disable options work as expected. Closes: #821084 |
||
|---|---|---|
| data/debian-cd | ||
| debian | ||
| examples | ||
| frontend | ||
| functions | ||
| manpages | ||
| scripts | ||
| share | ||
| COPYING | ||
| Makefile | ||