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Boot Settings details
About this task
The Boot Settings screen details are explained as follows:
Option
Description
Boot Mode
Allows you to configure the Boot Sequence and Enable or Disable the individual boot options. The
available options are BIOS and UEFI. The option is set to UEFI by default.
Boot Sequence
Enables or disables the Boot Sequence Retry feature. If the last attempt to boot has failed, the system
Retry
immediately performs a cold reset or retries to boot after 30 seconds time-out period base on the setting
of Reset or Enabled. This option is set to Enabled by default.
Hard-Disk
Specifies the drive that is booted in the event of a drive failure. The devices are selected in the Hard-
Failover
Disk Drive Sequence on the Boot Option Setting menu. When this option is set to Disabled, only the
first drive in the list is 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.
Generic USB
Enables or disables the USB boot option. This option is set to Disabled by default.
Boot
Hard-disk Drive
Enables or disables the Hard-disk Drive Placeholder option. This option is set to disabled by default.
Placeholder
UEFI Boot Settings
The UEFI Boot Settings screen enables you to specify the UEFI boot order.
About this task
Option
Description
UEFI Boot
Enables you to change the UEFI boot device order.
Sequence
Boot Options
Enables you to enable or disable the UEFI boot devices.
Enable/Disable
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.
14
Pre-operating system management applications
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