libretech-buildroot

buildroot optimized for Libre Computer boards with composible components and design practices.

This branch should always be rebase-able on buildroot master. It is not designed as a fork.

All components are organized into composible profiles by arch, board, image layout, and overlay.

Hosted standardized bootloader binaries are produced by libretech-builder-simple.

defconfigs can be considered the functional end of a composition of profiles.

Also see the original buildroot README.

configs

defconfigs are organized into a tree structure based on board under configs.

• configs
  • librecomputer
    • aml-s905x-cc
      • efi-btrfs_defconfig

make librecomputer/aml-s905x-cc/efi-btrfs_defconfig
make

board

board files are organized into a tree structure based on architecture, board, image generation, composible overlays

• board
  • librecomputer
    • aml
      • gxl
        • overlay
        • s905x
          • overlay
    • aml-s905x-cc
      • overlay
      • genimage
    • genimage
      • initramfs
        • genimage.cfg
        • genimage.sh
      • efi-btrfs
        • boot.cmd
        • boot.ini
        • genimage.cfg
        • genimage.sh
    • overlay
      • debugfs
      • stress-ng-cpu
    • project

genimage

the genimage directories under board/librecomputer holds image layout profiles to support functions

• initramfs - basic initramfs system in efi-vfat booted via efi
• efi-btrfs - basic system with kernel in efi-vfat and rootfs in btrfs booted via efi

overlay

the overlay directories under board/librecomputer holds overlays profiles to support functions

• debugfs - adds debugfs automount to the image via init script
• stress-ng-cpu - adds stress-ng cpu stressor to the image via init script

project

the project directory is recommended for storing external submodules or repos for referencing