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bmo-editing-the-hostfirmwaresettings-resource.adoc

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Editing the HostFirmwareSettings resource

You can edit the HostFirmwareSettings of provisioned hosts.

Important

You can only edit hosts in the provisioned state. You cannot edit values for hosts in the externally provisioned state. You cannot set read-only values.
Procedure

  1. Get the list of HostFirmwareSettings resources:

    $ oc get hfs -n openshift-machine-api

  2. Edit a host’s HostFirmwareSettings resource:

    $ oc edit hfs <host_name> -n openshift-machine-api

    Where <host_name> is the name of a provisioned host. The HostFirmwareSettings resource will open in the default editor for your terminal.

  3. Add name/value pairs to the spec.settings section:

    Example
    spec:
  settings:
    name: value (1)

    1. Use the FirmwareSchema resource to identify the available settings for the host. You cannot set values that are read-only.

  4. Save the changes and exit the editor.

  5. Get the host’s machine name:

     $ oc get bmh <host_name> -n openshift-machine name

    Where <host_name> is the name of the host. The machine name appears under the CONSUMER field.

  6. Annotate the machine to delete it from the machineset:

    $ oc annotate machine <machine_name> machine.openshift.io/cluster-api-delete-machine=yes -n openshift-machine-api

    Where <machine_name> is the name of the machine to delete.

  7. Get a list of nodes and count the number of worker nodes:

    $ oc get nodes

  8. Get the machineset:

    $ oc get machinesets -n openshift-machine-api

  9. Scale the machineset:

    $ oc scale machineset <machineset_name> -n openshift-machine-api --replicas=<n-1>

    Where <machineset_name> is the name of the machineset and <n-1> is the decremented number of worker nodes.

  10. When the host enters the Available state, scale up the machineset to make the HostFirmwareSettings resource changes take effect:

    $ oc scale machineset <machineset_name> -n openshift-machine-api --replicas=<n>

    Where <machineset_name> is the name of the machineset and <n> is the number of worker nodes.