BIOS/iLO are updated. I am not sure about Smart Array Controller. UEFI optimized boot just can't be found in the BIOS (or i m blind) :/.Hi , How to fixed error?community.hpe.com
"This issue could be caused by old firmware of BIOS/iLO or Smart Array Controller.
Or try enabling/disabling UEFI optimized boot in BIOS configuration under Boot Options. "