Option
Description
attempted to boot. When this option is set to
Enabled
, all drives are attempted to boot in the order selected in the
Hard-Disk Drive Sequence
. This option is not enabled for
UEFI Boot Mode
. This option is set to
Disabled
by
default.
Boot Option
Settings
Configures the boot sequence and the boot devices.
BIOS Boot Settings
Enables or disables BIOS boot options.
NOTE:
This option is enabled only if the boot mode is BIOS.
UEFI Boot Settings
Enables or disables UEFI Boot options.
NOTE:
This option is enabled only if the boot mode is UEFI.
Choosing system boot mode
System Setup enables you to specify one of the following boot modes for installing your operating system:
•
BIOS boot mode is the standard BIOS-level boot interface.
•
UEFI boot mode (the default), is an enhanced 64-bit boot interface.
If you have configured your system to boot to UEFI mode, it replaces the system BIOS.
1
From the
System Setup Main Menu
, click
Boot Settings
, and select
Boot Mode
.
2
Select the UEFI boot mode you want the system to boot into.
CAUTION:
Switching the boot mode may prevent the system from booting if the operating system is not installed in
the same boot mode.
3
After the system boots in the specified boot mode, proceed to install your operating system from that mode.
NOTE:
Operating systems must be UEFI-compatible to be installed from the UEFI boot mode. DOS and 32-bit operating systems
do not support UEFI and can only be installed from the BIOS boot mode.
NOTE:
For the latest information about supported operating systems, go to Dell.com/ossupport.
Changing boot order
About this task
You may have to change the boot order if you want to boot from a USB key. You may have to change the boot order if you want to boot
from a USB key or an optical drive. The following instructions may vary if you have selected
BIOS
for
Boot Mode
.
Steps
1
On the
System Setup Main Menu
screen, click
System BIOS
>
Boot Settings
>
UEFI/BIOS Boot Settings
>
UEFI/BIOS Boot
Sequence
.
2
Click
Boot Option Settings
>
BIOS/UEFI Boot Settings
>
Boot Sequence
.
3
Use the arrow keys to select a boot device, and use the plus (+) and minus (-) sign keys to move the device down or up in the order.
4
Click
Exit
, and then click
Yes
to save the settings on exit.
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Dell EMC PowerEdge T440 Installation and Service Manual
Pre-operating system management applications
