Set the Boot Mode
The server UEFI firmware supports both Legacy BIOS and UEFI boot modes. Legacy
BIOS Boot Mode is enabled by default
. Because all supported Linux operating systems support both Legacy
BIOS and UEFI, you have the option of setting the boot mode to either Legacy
BIOS or UEFI before you perform the OS installation.
Note -
After you have installed the operating system, if you decide you want to
switch from Legacy BIOS to UEFI Boot Mode, or vice versa, you must reinstall
the operating system.
-
Reset or power on the server.
For example, to reset the server, do one of the following:
-
From the local server, press
the Power button (approximately 1 second) on the front panel of the
server to turn the server off, then press the Power button again to
power on the server.
-
From the Oracle ILOM web
interface, click Host Management → Power
Control, select Reset from the Select Action list box, then click
Save.
-
From the Oracle ILOM CLI, type:
reset /System
The server begins the boot process and the BIOS screen appears.
Note -
The next steps occur very quickly so be ready to press the F2 function
key.
-
When prompted in the BIOS screen, press the F2 key to access the BIOS
Setup Utility.
After a few moments, the BIOS Setup Utility appears.
-
In the BIOS Setup Utility, use the arrow keys to navigate to the Boot
menu.
The Boot Menu screen appears.
Note -
The options in the boot order list differ depending on the storage
drive configuration and whether you have enabled the Persistent Boot
Support feature. For more information about Persistent Boot Support,
refer to the
Oracle X5 Series Servers Administration
Guide at
http://www.oracle.com/goto/x86AdminDiag/docs.
-
Use the down arrow key to select the UEFI/BIOS Boot
Mode field, and then press Enter.
-
Select your preferred boot mode, and then press Enter.
-
To save changes and exit BIOS, press the F10 key.
Note -
You must select the desired boot mode, Legacy BIOS or UEFI, before
starting the operating system installation.