compute_new_kargs

bootc_lib::bootc_kargs

Function compute_new_kargs 

Source 
pub(crate) fn compute_new_kargs(
    new_fs: &Dir,
    current_root: Option<&Dir>,
    new_kargs: &mut Cmdline<'_>,
) -> Result<()>
Expand description

Computes new kernel arguments by applying the diff between existing and new kargs.d files.

This function:

  1. Loads kernel arguments from usr/lib/bootc/kargs.d in the new filesystem
  2. Loads kernel arguments from the current root (if present)
  3. Computes the difference between them (added/removed arguments)
  4. Applies that difference to the provided new_kargs cmdline

This allows bootc to maintain user customizations while applying changes from updated container images.

ยงArguments

  • new_fs - Directory handle to the new filesystem containing kargs.d files
  • current_root - Optional directory handle to current root filesystem
  • new_kargs - Mutable cmdline that will be modified with the computed diff