Oracle Exadata Storage Server X7-2 EF Service Manual page 225

Configure UEFI Secure Boot
b. In the Select File dialog box, scroll through the list, select the EFI file (or
another available file), and press Enter.
c. In the second Select File dialog box, scroll through the list, select the image
file that you want to run in Secure Boot mode, and press Enter.
Setting Up BIOS Configuration Parameters 225