User`s guide

30 NovaScale 4020 User’s Guide
3. Video appears on the monitor that is attached to the server and begins to display boot
progress. The AMI* BIOS banner displays the loaded versions of the BIOS, PAL, SAL,
and EFI.
4. POST concludes and passes control to the boot manager.
5. From the boot manager, you can use arrow keys to highlight the option that invokes the EFI
shell operating system if it is installed, or you can highlight and select the Boot
Maintenance menu. Selecting the Boot Maintenance menu lets you configure boot options
and other boot environment variables. Booting to the EFI shell causes the following prompt
to appear: Shell>
6. When you see this prompt, you can load and start an operating system.
Extensible Firmware Interface Boot Manager
The EFI boot manager allows you to control the server’s booting environment. Depending on
how you have configured the boot options, after the server is powered up the boot manager
presents you with different ways to bring up the system. For example, you can boot to one of
the following:
EFI Shell: An interactive environment that allows EFI device drivers to be loaded, EFI
applications to be launched, and operating systems to be booted. The EFI shell provides a set of
basic commands used to manage files and the system environment variables. For more
information on the EFI Shell, see The Extensible Firmware Interface (EFI) Shell, on page 34.
Boot Options: Files that you include as boot options. You add and delete boot options by
using the Boot Maintenance menu. Each boot option specifies an EFI executable with possible
options. For information on the Boot Maintenance menu options, see Table 4.
Boot Maintenance Menu: A menu of items allowing you configure boot options and other
boot environment variables. Table 4 describes each menu item in the Boot Maintenance menu.
Table 4. Boot Maintenance Menu Options
Option Description
Boot from a File Automatically adds EFI applications as boot options or allows you to boot
from a specific file.
When you choose this option, the system searches for an EFI directory in all
EFI System Partitions in the system. For each EFI directory that the system
finds, it searches through that directory’s subdirectories for the first file that
is an executable EFI application. Each file that meets this criterion can be
automatically added as a boot option. In addition, legacy boot options for A:
and C: are also added if those devices are present.
With this option, you can launch a specific application without adding it as a
boot option. In this case, the EFI Boot Manager searches the root
directories of all of the EFI System Partitions present in the system for the
specified EFI application.
To boot from a file:
• At the menu, use the arrow key to select Boot from a File.
• Press <Enter> to select the option.
• Use the arrow key to choose the EFI file to boot from.
• Press <Enter> to select the option.