5.12.

ProvisioningError 51s metal3-baremetal-controller Image provisioning failed: Deploy step deploy.deploy failed with BadRequestError: HTTP POST
https://<bmc_address>/redfish/v1/Managers/iDRAC.Embedded.1/VirtualMedia/CD/Actions/VirtualMedia.InsertMedia
returned code 400.
Base.1.8.GeneralError: A general error has occurred. See ExtendedInfo for more information
Extended information: [
  {
    "Message": "Unable to mount remote share https://<ironic_address>/redfish/boot-<uuid>.iso.",
    "MessageArgs": [
      "https://<ironic_address>/redfish/boot-<uuid>.iso"
    ],
    "MessageArgs@odata.count": 1,
    "MessageId": "IDRAC.2.5.RAC0720",
    "RelatedProperties": [
      "#/Image"
    ],
    "RelatedProperties@odata.count": 1,
    "Resolution": "Retry the operation.",
    "Severity": "Informational"
  }
].