Reference Guide

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.
The Boot options include IPv4 PXE and IPv6 PXE. This option is set to IPv4 by default.
NOTE: This option is enabled only if the boot mode is UEFI.
UEFI Boot
Sequence
Enables you to change the boot device order.
Boot Options
Enable/Disable
Enables you to select the enabled or disabled boot devices.
Choosing system boot mode
System Setup enables you to specify one of the following boot modes for installing your operating system:
BIOS boot mode (the default) is the standard BIOS-level boot interface.
BIOS boot mode is the standard BIOS-level boot interface.
NOTE: Dell Storage NAS supports only BIOS mode. You must not change the boot mode to UEFI because the system
does not boot.
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 www.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.
NOTE:
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.
3. Click Exit, and then click Yes to save the settings on exit.
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Pre-operating system management applications