Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Administering a System: Booting and Shutdown
Booting Systems
Chapter 5466
To set the ACPI configuration for HP-UX: in the EFI Shell interface
enter the acpiconfig default command, and then enter the reset
command for the nPartition to reboot with the proper (default)
configuration for HP-UX.
A Standard Boot
Here are more details about what happens during a typical HP-UX
boot-up sequence on an HP Integrity Server.
Step 1. Power on external devices:
If necessary, turn on all external peripherals and devices that are
attached to your computer (for example, disk drives, tape drives,
printers, terminals, bus converters).
Once the devices have completed their self-check tests, proceed to the
next step.
Step 2. Power on your system (or nPartition):
Turn on or reset the computer or nPartition.
System hardware (or hardware associated with an nPartition you are
booting) will go through a series of self-tests to verify that the processors,
memory, and other system components are in working order.
Step 3. Boot device selection:
Your system (or the nPartition you are booting) must locate a kernel file
to boot from. There are two parts to the search:
Part 1 determine the hardware path to the boot device
Part 2 determine which kernel file on the hardware path to
boot (see Step 4)
Path variables stored in non-volatile memory set up to three possible
boot paths from which to attempt a boot:
PRI The PRImary boot path is the first boot path to try. Set
the value of this path to point to the device from which
you will boot most often.