Crate composefs_boot 

Boot integration for composefs filesystem images.

This crate provides functionality to transform composefs filesystem images for boot scenarios by extracting boot resources, applying SELinux labels, and preparing bootloader entries. It supports both Boot Loader Specification (Type 1) entries and Unified Kernel Images (Type 2) for UEFI boot.

Modules

bootloader

Bootloader entry parsing and manipulation.

cmdline

Kernel command line parsing and manipulation.

os_release

Parsing and handling of os-release files.

selabel

SELinux security context labeling for filesystem trees.

uki

Unified Kernel Image (UKI) parsing and metadata extraction.

write_boot

Boot entry writing and installation functionality.

Constants

REQUIRED_TOPLEVEL_TO_EMPTY_DIRS 🔒

These directories are required to exist in images. They may have content in the container, but we don’t want to expose them in the final merged root.

Traits

BootOps

Trait for transforming filesystem images for boot scenarios.