I am able to boot the server manually by setting up "Remote File Share", "Next Boot (Virtual CD/DVD/ISO)". From the virtual console during the reboot, it displays"... Boot to virtual CD requested ....".

But I have problem achieving it via Redfish API interface because "CD, DVD, USB" are the only available media types: https://www.dell.com/support/manuals/en-us/idrac8-lifecycle-controller-v2.70.70.70/idrac8_redfishapiguide_2.70.70.70/virtualmedia?guid=guid-d9e76cf6-627d-4cb9-a3de-3f2b88b74cfb&lang=en-us

When I run the scripts, from the virtual console it says "... Boot to CD/DVD drive requested ....". 

I found Python script SetNextOneTimeBootVirtualMediaDeviceOemREDFISH.py but it is not what we plan to do. We would like to do: power off server, set virtual media (ISO URL), set boot source to virtual CD/DVD, power on server. Wonder if it is possible with only CD/DVD/USB options are available on Redfish interface.

Thank you.