Hitachi Compute Blade 500 Series User Manual page 125

Note: If you delete boot options in a poor attempt, trouble may occur such
as boot failure.
Tip: You can delete WOL Boot Option in Delete WOL Boot Option menu in
the same way.
Change Boot Order sub menu
Select an item to display or set, and press Enter.
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UEFI setup menu
Hitachi Compute Blade 500 Series EFI User's Guide