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Procedure
1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Boot
Options > Boot Mode.
2. Select a setting.
•
UEFI Mode (default)—Configures the system to boot to a UEFI compatible operating system.
•
Legacy BIOS Mode—Configures the system to boot to a traditional operating system in Legacy BIOS compatibility
mode.
3. Save your setting.
4. Reboot the server.
Secure Boot
Secure Boot is a server security feature that 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 and 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
When Secure Boot is enabled:
•
Firmware components and operating systems with boot loaders must have an appropriate digital signature to execute
during the boot process.
•
Operating systems must support Secure Boot and have an EFI boot loader signed with one of the authorized keys to
boot. For more information about supported operating systems, see https://www.hpe.com/servers/ossupport.
You can customize the certificates embedded in the UEFI BIOS by adding or removing your own certificates, either from a
management console directly attached to the server, or by remotely connecting to the server using the iLO Remote
Console.
You can configure Secure Boot:
Using the System Utilities options described in the following sections.
•
•
Using the iLO RESTful API to clear and restore certificates. For more information, see the Hewlett Packard Enterprise
website (https://www.hpe.com/info/redfish).
•
Using the secboot command in the Embedded UEFI Shell to display Secure Boot databases, keys, and security
reports.
Launching the Embedded UEFI Shell
Use the Embedded UEFI Shell option to launch the Embedded UEFI Shell. The Embedded UEFI Shell is a preboot
command-line environment for scripting and running UEFI applications, including UEFI boot loaders. The Shell also
provides CLI-based commands you can use to obtain system information, and to configure and update the system BIOS.
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Diagnostic tools
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