nPartition Administrator's Guide, Second Edition

a. EFI Shell (command-driven boot environment)
b. EFI Scripts and Applications
EFI scripts and EFI applications can be initiated from either EFI Boot Manager or EFI
Shell.
5. Operating System Loader
The following OS loaders are supported on HP Integrity servers. OS loaders can be initiated
from the EFI Boot Manger or the EFI Shell.
a. HPUX.EFI Loader
Loader for the HP-UX operating system.
b. ELILO.EFI Loader
Loader for Red Hat Enterprise Linux or SuSE Linux Enterprise Server.
c. vms_loader.efi Loader
Loader for HP OpenVMS I64.
d. ia64ldr.efi Loader
Loader for Microsoft Windows Server 2003. ia64ldr.efi must be initiated from EFI
Boot Manager (not from the EFI Shell).
Boot Process Differences for nPartitions on HP 9000 servers and HP Integrity servers
The following lists, “HP Integrity Server Booting” and “HP 9000 Server Booting”, describe system
boot features and differences on HP Integrity and HP 9000 servers.
HP Integrity Server Booting This list describes system boot features on cell-based HP Integrity
servers.
• The nPartition system boot environment is the Extensible Firmware Interface (EFI): the EFI
Boot Manager menu and the EFI Shell.
• The autoboot process is configured by the EFI autoboot setting and the order of items in the
boot options list.
The boot options list can include:
— First boot option: configured using the setboot -p... or parmodify -b...
command.
— Second boot option: configured using the setboot -h... or parmodify -s...
command
— Third boot option: configured using the setboot -a... or parmodify -t...
command.
• Each operating system has its own OS loader.
— The HP-UX OS loader is HPUX.EFI, which supports hpux(1M) loader options.
You can issue hpux loader commands from the HPUX> prompt.
— The HP OpenVMS I64 loader is vms_loader.efi.
— The Microsoft® Windows® loader is ia64ldr.efi and it is invoked only from the
EFI Boot Manager.
— The loader for Red Hat Enterprise Linux and SuSE Linux Enterprise Server is
ELILO.EFI.
You can issue ELILO loader commands from the "ELILO boot" prompt.
• The EFI system boot environment includes an ACPI configuration setting that must be set
properly for the OS being booted: either HP-UX, OpenVMS I64, Windows, or Linux. For
details see “ACPI Configuration Value—HP Integrity Server OS Boot” (page 92).
88 Booting and Resetting nPartitions