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126 Chapter 6
HP-UX Operating System
Starting HP-UX
Start up, or boot, HP-UX after the operating system has been completely
shut down or partially shut down to perform system administration
tasks. The boot procedure differs according to the value of the Autoboot
flag. See “Enabling Autoboot” on page 67 for information on how to set
Autoboot. After you power-up your V-Class server, if Autoboot is set to:
• ON, OBP automatically starts HP-UX. (Press the
ESC key within 10
seconds to interrupt the boot process and enter bootmenu commands.)
• OFF, the user must:
• Start OBP at the SSP’s HP-UX prompt by entering the following
command:
do_reset
• Start the V-Class server using default values at OBP’s default
prompt by entering the following command:
boot
Power-On Sequence
Turn on the SSP power and allow it to boot before powering on the V-
Class server’s cabinets. This allows the SSP to be used to monitor and
control the V-Class server as it boots is used.
The following is the sequence for powering on an HP V-Class server and
its SSP:
Step 1. Power on the SSP and allow it to boot HP-UX.
Step 2. Power on the V-Class server cabinets.
On multiple-cabinet V2500/V2600 SCA systems, the serf cabinets
(cabinet IDs 2, 4, and 6, if present) should be powered on before the
monarch cabinet (cabinet ID 0). This helps ensure that all cabinets
synchronize following power on self test.
Step 3. Select a device on V-Class cabinet ID 0 from which to boot HP-UX, as
needed.
The OBP menu’s SEARCH command searches for bootable devices
connected on the cabinet. Only devices on cabinet ID 0 may be booted.
You can designate an I/O device to be the primary (PRI) or alternate
(ALT) boot device by using the OBP menu’s PATH command.