Bug 1945701

+++ This bug was initially created as a clone of Bug #1945700 +++

We have a report upstream of problems with Dell systems when changing boot mode because of the fix for https://bugzilla.redhat.com/show_bug.cgi?id=1892302. This fix (https://review.opendev.org/c/openstack/ironic/+/758856) syncs the boot mode after setting the boot device. On Dell systems this can cause problems when changing the boot mode because the change is cached.

From the upstream report:
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Node deployment failed for cross boot mode scenario using redfish driver
This issue is only observed for cross-boot mode scenarios i.e. uefi-bios or bios-uefi.

Configurational Details
• iDRAC Model : PowerEdge XE2420
• BIOS version : 1.3.3
• Boot Mode :- UEFI in script and BIOS in idrac

Steps to reproduce:
a. Create node on devstack using create_node.sh (make appropriate changes in CLI for node creation).
./create_node.sh
Provision state should be in Available mode, after node get created.
b. Once Node is available then Deploy the node
Command to Execute :- openstack baremetal node deploy
c: Keep track on log - sudo journalctl -f -u devstack
d. Expected Result :- Once node is deployed, provision state should be in Active Mode

Observations:-
In case of cross boot mode using redfish drivers , while deploying the node it get failed . BIOS is getting displayed in pending jobs in job queue and Console power state remains off .

Note- This is a regression issue. It occurs beacause of an upstream change to ironic : "https://review.opendev.org/c/openstack/ironic/+/758856"
It was working fine with iDRAC f/w 4.22.00.00.

LOG:
Redfish exception occurred. Error: Setting boot mode to uefi failed for node Error: HTTP PATCH https://192.168.110.22/redfish/v1/Systems/System.Embedded.1 returned code 400. Base.1.5.GeneralError: Pending configuration values are already committed, unable to perform another set operation. Extended information: [{'Message': 'Pending configuration values are already committed, unable to perform another set operation.', 'MessageArgs': ['BootSourceOverrideMode'], 'MessageArgs': 1, 'MessageId': 'IDRAC.2.1.SYS011', 'RelatedProperties': ['BootSourceOverrideMode'], 'RelatedProperties': 1, 'Resolution': 'Wait for the scheduled job to complete or delete the configuration jobs before attempting more set attribute operations.', 'Severity': 'Warning'}]: