releasenotes/notes/ironic-boot-option-3f3036aa5e82ec7e.yaml


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features:
  - |
    New configuration ``IronicDefaultBootOption`` allows to change the default
    boot option to use for bare metal instances in the overcloud.
upgrade:
  - |
    The default boot option for bare metal instances in overcloud was changed
    to "local". This was already the default for whole-disk images, but for
    partition images it requires ``grub2`` to be installed on them.
    Use the new ``IronicDefaultBootOption`` configuration to override, or
    set ``boot_option`` capability on nodes and flavors.