For ThinkServer servers, the Storage OpROM Policy on the
ThinkServer Management Module must be set to UEFI Only
for
the OS installer image to boot correctly. If the policy is set to Legacy Only,
the OS installer will not boot.
From the AMI Setup Utility, select the
menu.Use the arrow keys to select the Storage OpROM Policy.
Press + to change the value to UEFI Only.
Press F10 to save the change.
For more information, see your ThinkServer documentation.