---
fixes:
  - |
    Fixes the GRUB2 bootloader kernel command line where a prior ``boot``
    parameter could cause issues with bootloader configuration when
    an image is rebuilt and the ``bootloader`` element is utilized.
    We now remove any prior ``boot`` parameter in */etc/default/grub*
    when executing the ``bootloader`` element, and then assert a
    valid entry ``boot`` parameter if a */boot* partition is defined
    as part of the image build.