`hardwareProfile: unknown` can be removed from the following modules:

• modules/bmo-getting-the-baremetalhost-resource.adoc
• modules/ipi-install-replacing-a-bare-metal-control-plane-node.adoc
• modules/ipi-install-troubleshooting-cluster-nodes-will-not-pxe.adoc - Replace with rootDeviceHints. References to "proper hardware profile" do not explain what that is and how it is set. Check with SME.

Do not update the REST API module (rest_api/provisioning_apis/baremetalhost-metal3-io-v1alpha1.adoc) because it is automatically generated. This needs to be checked.

HardwareProfile is a deprecated concept that is not otherwise mentioned in the docs. The value "unknown" is the default anyway.