6394c279ca
Import root device hints under "Advanced" section. Change-Id: I5a3002620c73568698d2ebe1af202001a8f074e1 Partial-bug: #1612278
60 lines
2.2 KiB
ReStructuredText
60 lines
2.2 KiB
ReStructuredText
.. _local-boot-partition-images:
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Local boot with partition images
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--------------------------------
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Starting with the Kilo release, Bare Metal service supports local boot with
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partition images, meaning that after the deployment the node's subsequent
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reboots won't happen via PXE or Virtual Media. Instead, it will boot from a
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local boot loader installed on the disk.
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It's important to note that in order for this to work the image being
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deployed with Bare Metal service **must** contain ``grub2`` installed within it.
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Enabling the local boot is different when Bare Metal service is used with
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Compute service and without it.
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The following sections will describe both methods.
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.. note::
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The local boot feature is dependent upon a updated deploy ramdisk built
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with diskimage-builder_ **version >= 0.1.42** or ironic-python-agent_
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in the kilo-era.
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.. _diskimage-builder: http://docs.openstack.org/developer/diskimage-builder/
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.. _ironic-python-agent: http://docs.openstack.org/developer/ironic-python-agent/
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Enabling local boot with Compute service
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========================================
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To enable local boot we need to set a capability on the bare metal node,
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for example::
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ironic node-update <node-uuid> add properties/capabilities="boot_option:local"
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Nodes having ``boot_option`` set to ``local`` may be requested by adding
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an ``extra_spec`` to the Compute service flavor, for example::
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nova flavor-key baremetal set capabilities:boot_option="local"
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.. note::
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If the node is configured to use ``UEFI``, Bare Metal service will create
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an ``EFI partition`` on the disk and switch the partition table format to
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``gpt``. The ``EFI partition`` will be used later by the boot loader
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(which is installed from the deploy ramdisk).
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.. _local-boot-without-compute:
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Enabling local boot without Compute
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===================================
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Since adding ``capabilities`` to the node's properties is only used by
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the nova scheduler to perform more advanced scheduling of instances,
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we need a way to enable local boot when Compute is not present. To do that
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we can simply specify the capability via the ``instance_info`` attribute
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of the node, for example::
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ironic node-update <node-uuid> add instance_info/capabilities='{"boot_option": "local"}'
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