wrong bug updated.

Environment:
openstack-tripleo-common-8.6.3-8.el7ost.noarch

In undercloud.conf I added the following line:
enabled_hardware_types = ipmi,redfish,ilo,idrac,cisco-ucs-managed
Before running 'openstack undercloud install'

Here's the instackenv.json I had to use, note the use of "pm_type": "cisco-ucs-managed" and pm_service_profile.
{
  "nodes": [
    {
      "name": "osmg01",
      "mac":[
          "00:25:b5:02:a1:2f"
      ],
      "pm_type": "cisco-ucs-managed",
      "pm_user": "openstack",
      "pm_password": "foo",
      "pm_addr": "10.48.50.10",
      "pm_service_profile": "org-root/org-OpenStack/ls-osmg01"
    },
        {
      "name": "osmg02",
      "mac":[
          "00:25:b5:02:a1:4f"
      ],
      "pm_type": "cisco-ucs-managed",
      "pm_user": "openstack",
      "pm_password": "foo",
      "pm_addr": "10.48.50.10",
      "pm_service_profile": "org-root/org-OpenStack/ls-osmg02"
    }
  ]
}

The reported error didn't reproduce.

Verifying based on comment #3

This bug is marked for inclusion in the errata but does not currently contain draft documentation text. To ensure the timely release of this advisory please provide draft documentation text for this bug as soon as possible.

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Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:2574