Software and configuration utilities 24
Flexible boot control
This feature enables you to do the following:
•
Add Boot Options:
o
Browse all FAT16 and FAT32 file systems.
o
To add a new UEFI boot option, select an X64 UEFI application with an .EFI extension. For
example, adding an OS boot loader or other UEFI application as a new UEFI boot option.
The new boot option is appended to the boot-order list. When you select a file, you are prompted
to enter the boot option description. This description, and any optional data to be passed to an
.EFI application, is then displayed in the boot menu.
•
Boot to System Utilities
After pre-POST, the boot options screen appears. During this time, you can access the UEFI System
Utilities by pressing the
F9
key.
•
Choose between supported modes:
o
Legacy BIOS Boot Mode
o
UEFI Boot Mode
IMPORTANT:
If the default boot mode settings are different than the user-defined settings,
the system may not boot the OS installation if the defaults are restored. To avoid this issue, use
the User Defined Defaults feature in UEFI System Utilities to override the factory default
settings.
For more information, see the UEFI System Utilities user guide for your product on the Hewlett Packard
Enterprise website (
http://www.hpe.com/info/UEFI/docs
Restoring and customizing configuration settings
You can reset all configuration settings to the factory default settings, or you can restore and use the
system default configuration settings.
You can also configure default settings as necessary, and then save the configuration as the custom
default configuration. When the system loads the default settings, it uses the custom default settings
instead of the factory defaults.
Secure Boot configuration
Secure Boot is integrated in the UEFI specification on which the Hewlett Packard Enterprise
implementation of UEFI is based. Secure Boot is implemented in the BIOS and does not require special
hardware. Secure Boot ensures that each component launched during the boot process is digitally
signed. Secure Boot also ensures that the signature is validated against a set of trusted certificates
embedded in the UEFI BIOS. Secure Boot validates the software identity of the following components in
the boot process:
•
UEFI drivers loaded from PCIe cards
•
UEFI drivers loaded from mass storage devices
•
Preboot UEFI shell applications
•
OS UEFI boot loaders
Once enabled, only firmware components and operating systems with boot loaders that have an
appropriate digital signature can execute during the boot process. Only operating systems that support
Secure Boot and have an EFI boot loader signed with one of the authorized keys can boot. For more
information about supported operating systems, see the UEFI System Utilities and Shell release notes for
your server on the Hewlett Packard Enterprise website (
