Deployment Guide

System BIOS
33 Setting up BIOS on 15th Generation (15G) Dell EMC PowerEdge Servers | 508
1.6 System BIOS—Boot Settings
Boot Settings page enables you to set the boot modes (BIOS vs UEFI) and specify the boot order.
Note: The default option setting is depicted in boldface. Dell EMC reserves the rights to change the default
properties.
Menu Item
Options
Description
Boot Mode
• BIOS
• UEFI
BIOS boot mode is used to boot devices installed with
legacy OSs which do not follow the UEFI (Unified
Extensible Firmware Interface) standard. If the OS
supports UEFI, you can set this option to UEFI.
Note: Switching the boot mode may prevent the server
from booting if the OS is not installed in the same boot
mode.
Boot
Sequence
Retry
• Enabled
• Disabled
Allows you to enable or disable the boot sequence
retry feature. If this field is enabled and system fails to
boot, the system BIOS will keep re-attempting the boot
sequence after every 30 seconds.
Hard Disk
Failover
• Enabled
• Disabled
If enabled, when attempting to boot the “Hard drive C”
boot option, the BIOS will exhaust every hard drive
controller in the Hard-disk Drive Sequence instead of
just the first one in the list, before falling to the next
boot option.
Note: This option is applicable to BIOS boot mode only.
Generic
USB Boot
• Enabled
• Disabled
When set to Enabled, a Generic USB Boot placeholder
will be placed in the UEFI Boot Sequence, which will
map to the first bootable USB device in the boot
sequence.
This allows the entry to remain present even if the USB
device is not present.
This is only available in UEFI Boot Mode.
Hard-disk
Drive
Placeholder
• Enabled
• Disabled
When set to Enabled, a Generic RAID HDD placeholder
will be placed into the UEFI Boot Sequence. The entry
will remain present until an operating system or a
bootable file is installed on the RAID disk.
This setting is only available in UEFI Boot Mode.
Clean all
Sysprep
order and
variables
• None
• Yes
When set to None, BIOS will do nothing. When set to
Yes, BIOS will delete variables of SysPrep #### and
SysPrepOrder this option is a onetime option, will
reset to none when deleting variables.
This setting is only available in UEFI Boot Mode.
Boot
Option
Settings
N/A
Enables you to configure the boot sequence and the
boot devices. Boot options can be enabled or disabled
from this interface too.