Option
Description
Intel TXT
Enables or disables the Intel Trusted Execution Technology (TXT) option. To enable the
Intel TXT
option,
virtualization technology and TPM Security must be enabled with Pre-boot measurements. This option is set to
Off
by default.
Power Button
Enables or disables the power button on the front of the appliance. This option is set to
Enabled
by default.
NMI Button
Enables or disables the NMI button on the front of the appliance. This option is set to
Disabled
by default.
AC Power
Recovery
Sets how the appliance behaves after AC power is restored to the appliance. This option is set to
Last
by default.
AC Power
Recovery Delay
Sets the time delay for the appliance to power up after AC power is restored to the appliance. This option is set to
Immediate
by default.
User Defined Delay
(60s to 240s)
Sets the
User Defined Delay
option when the
User Defined
option for
AC Power Recovery Delay
is selected.
UEFI Variable
Access
Provides varying degrees of securing UEFI variables. When set to
Standard
(the default), UEFI variables are
accessible in the operating system per the UEFI specification. When set to
Controlled
, selected UEFI variables are
protected in the environment and new UEFI boot entries are forced to be at the end of the current boot order.
Secure Boot
Enables Secure Boot, where the BIOS authenticates each pre-boot image by using the certificates in the Secure
Boot Policy. Secure Boot is disabled by default.
Secure Boot Policy
When Secure Boot policy is set to
Standard
, the BIOS uses the appliance manufacturer’s key and certificates to
authenticate pre-boot images. When Secure Boot policy is set to
Custom
, the BIOS uses the user-defined key and
certificates. Secure Boot policy is set to
Standard
by default.
Secure Boot Policy
Summary
Specifies the list of certificates and hashes that secure boot uses to authenticate images.
Secure Boot Custom Policy Settings
Secure Boot Custom Policy Settings is displayed only when
Secure Boot Policy
is set to
Custom
.
Viewing Secure Boot Custom Policy Settings
To view the
Secure Boot Custom Policy Settings
screen, perform the following steps:
1
Turn on, or restart your appliance.
2
Press F2 immediately after you see the following message:
F2 = System Setup
NOTE:
If your operating system begins to load before you press F2, wait for the appliance to finish booting, and then
restart your appliance and try again.
3
On the
System Setup Main Menu
screen, click
System BIOS
.
4
On the
System BIOS
screen, click
System Security
.
5
On the
System Security
screen, click
Secure Boot Custom Policy Settings
.
Secure Boot Custom Policy Settings details
The
Secure Boot Custom Policy Settings
screen details are explained as follows:
Option
Description
Platform Key
Imports, exports, deletes, or restores the platform key (PK).
Key Exchange Key
Database
Enables you to import, export, delete, or restore entries in the Key Exchange Key (KEK) Database.
Authorized
Signature Database
Imports, exports, deletes, or restores entries in the Authorized Signature Database (db).
36
Pre-operating system management applications