Dell PowerEdge R6525 EMC Installation and Service Manual - Page 30

Choosing system boot mode, Changing boot order, Table 21. Boot Settings details continued

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Table 21. Boot Settings details (continued) Option Description Boot Sequence Retry Enables or disables the Boot Sequence Retry feature. If this option is set to Enabled and the system fails to boot, the system re-attempts the boot sequence after 30 seconds. This option is set to Enabled by default. Hard-disk Failover Enables or disables the Hard-disk failover. This option is set to Disabled by default. Generic USB Boot Enables or disables the generic USB boot placeholder. This option is set to Disabled by default. Hard-disk Drive Placeholder Enables or disables the Hard-disk drive placeholder. This option is set to Disabled by default. UEFI Boot Settings Specifies the UEFI boot sequence. Enables or disables UEFI Boot options. NOTE: This option controls the UEFI boot order. The first option in the list will be attempted first. Table 22. UEFI Boot Settings Option UEFI Boot Sequence Boot Options Enable/Disable Description Enables you to change the boot device order. 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: • 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 or an optical drive. The following instructions may vary if you have selected BIOS for Boot Mode. NOTE: Changing the drive boot sequence is only supported in BIOS boot mode. Steps 1. On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI Boot Settings > UEFI Boot Sequence. 2. 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. NOTE: You can also enable or disable boot order devices as needed. 30 Pre-operating system management applications

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Table 21. Boot Settings details (continued)
Option
Description
Boot Sequence Retry
Enables or disables the
Boot Sequence Retry
feature. If this option is set to
Enabled
and the system fails to boot, the system re-attempts the boot sequence after 30 seconds.
This option is set to
Enabled
by default.
Hard-disk Failover
Enables or disables the Hard-disk failover. This option is set to
Disabled
by default.
Generic USB Boot
Enables or disables the generic USB boot placeholder. This option is set to
Disabled
by
default.
Hard-disk Drive Placeholder
Enables or disables the Hard-disk drive placeholder. This option is set to
Disabled
by
default.
UEFI Boot Settings
Specifies the UEFI boot sequence. Enables or disables UEFI Boot options.
NOTE:
This option controls the UEFI boot order. The first option in the list
will be attempted first.
Table 22. UEFI Boot Settings
Option
Description
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:
•
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 or an optical drive. The following instructions may vary if you
have selected
BIOS
for
Boot Mode
.
NOTE:
Changing the drive boot sequence is only supported in BIOS boot mode.
Steps
1.
On the
System Setup Main Menu
screen, click
System BIOS
>
Boot Settings
>
UEFI Boot Settings
>
UEFI Boot Sequence
.
2.
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.
NOTE:
You can also enable or disable boot order devices as needed.
30
Pre-operating system management applications