Dell EMC VxRail P470 - Page 36

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