Module loader_entries 

Boot Loader Specification entry management

This module implements support for merging disparate kernel argument sources into the single BLS entry options field. Each source (e.g., TuneD, admin, bootc kargs.d) can independently manage its own set of kernel arguments, which are tracked via x-options-source-<name> extension keys in BLS config files.

See https://github.com/ostreedev/ostree/pull/3570 See https://github.com/bootc-dev/bootc/issues/899

Structs

SourceName 🔒

A validated source name (alphanumeric + hyphens + underscores, non-empty).

Constants

OPTIONS_SOURCE_KEY_PREFIX 🔒

The BLS extension key prefix for source-tracked options.

OSTREE_BOOTCONFIG_EXTRA_VERSION 🔒

The ostree release (year, release) that introduced bootconfig-extra serialization, which preserves x- prefixed BLS keys across staged deployment roundtrips. See https://github.com/ostreedev/ostree/pull/3570.

Functions

compute_merged_options 🔒

Compute the merged options line from all sources.

extract_source_options_from_bls 🔒

Extract source options from BLS entry content. Parses x-options-source-* keys from the raw BLS text since the ostree BootconfigParser doesn’t expose key iteration.

ostree_supports_bootconfig_extra 🔒

Whether the libostree loaded at runtime supports bootconfig-extra.

read_bls_entry_for_deployment 🔒

Read the BLS entry file content for a deployment from /boot/loader/entries/.

read_staged_bootconfig_extra_sources 🔒

Read x-options-source-* keys from the staged deployment data file.

set_options_for_source_staged 🔒

Set the kernel arguments for a specific source via ostree staged deployment.

unsupported_ostree_error 🔒

The error reported when the host ostree lacks bootconfig-extra support.