Dell PowerEdge MX740c EMC PowerEdge MX740c Installation and Service Manual - Page 27

UEFI Boot Settings, Choosing system boot mode, Changing boot order

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Option Boot Sequence Retry Hard-Disk Failover Generic USB Boot Hard-disk Drive Placeholder Description Enables or disables the Boot Sequence Retry feature. If the last attempt to boot has failed, the system 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. Specifies the drive that is booted in the event of a drive failure. The devices are selected in the HardDisk 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. Enables or disables the USB boot option. This option is set to Disabled by default. Enables or disables the Hard-disk Drive Placeholder option. This option is set to disabled by default. UEFI Boot Settings The UEFI Boot Settings screen enables you to specify the UEFI boot order. About this task Option UEFI Boot Sequence Boot Options Enable/Disable Description Enables you to change the UEFI boot device order. Enables you to enable or disable the UEFI 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 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 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. Pre-operating system management applications 27

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Option
Description
Boot Sequence
Retry
Enables or disables the
Boot Sequence Retry
feature. If the last attempt to boot has failed, the system
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
Failover
Specifies the drive that is booted in the event of a drive failure. The devices are selected in the
Hard-
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
Boot
Enables or disables the USB boot option. This option is set to
Disabled
by default.
Hard-disk Drive
Placeholder
Enables or disables the Hard-disk Drive Placeholder option. This option is set to
disabled
by default.
UEFI Boot Settings
The
UEFI Boot Settings
screen enables you to specify the UEFI boot order.
About this task
Option
Description
UEFI Boot
Sequence
Enables you to change the
UEFI
boot device order.
Boot Options
Enable/Disable
Enables you to enable or disable the
UEFI
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 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 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
.
Pre-operating system management applications
27