Secure Boot fails with agent_ilo + wholedisk scenario

[Anshul Jain]

Scenario : classical driver (agent_ilo) with secure boot for wholedisk image.

Steps:
Create a node with agent_ilo :
ironic node-create -d agent_ilo -i ilo_username=$ILO_USERNAME -i ilo_address=$ILO_ADDRESS -i ilo_password=$ILO_PASSWORD
Associate it with valid delpoy and wholedisk image:
ironic node-update $NODE add properties/capabilities=\"boot_mode:$BOOT_MODE\" driver_info/ilo_deploy_iso=$DEPLOY_ISO instance_info/image_source=$IMAGE_SOURCE instance_info/root_gb=30
Update it to perform secure_boot:
ironic node-update $NODE_UUID add instance_info/capabilities='{"secure_boot":"true"}'
Activate the node:
ironic node-set-provision-state $NODE_UUID active

Observation : Node becomes active, however it does a normal boot and not secure boot. The same thing works well with partition images.