Installation guide

Overview of the Boot Process
HP-UX version 11.00.03 Starting and Stopping the System 3-3
Once the system powers up (or you enter a reset_bus from the console
command menu), the following steps occur:
1. The CPU PROM begins the boot sequence, and the system displays various
messages (for example, copyright, model type, memory size, and board
revision) and the following prompt:
Hit any key to enter manual boot mode, else wait for autoboot
2. If the path to a valid boot device is currently defined (in the path partition of
the console controller; see “Manually Booting Your System”) and you do not
press any key, the boot process continues and control transfers to the primary
bootloader. If the boot device path is not defined or you press a key (during
the wait period of several seconds), the CPU PROM retains control and the
following prompt appears:
PROM:
At this point you can enter various PROM commands (see “CPU PROM
Commands”).
3. When you enter the boot command at the PROM: prompt, the boot process
continues, control transfers to the primary bootloader, and the following
prompt appears:
lynx$
At this point you can enter various primary bootloader (lynx) commands (see
“Primary Bootloader Commands”). As part of the boot process, the primary
bootloader reads the CONF file (from the LIF volume) for configuration
information (see “Modifying CONF Variables”). However, entries at the
lynx$ prompt have precedence over entries in the CONF file.
4. When you enter the boot command at the lynx$ prompt, the boot process
continues, control transfers to the secondary bootloader (isl), and the
following message appears:
ISL: Hit any key to enter manual boot mode, else wait for autoboot
5. If you do not press a key, the boot process continues without further
prompting. If you press a key (during the wait period), the following prompt
appears:
ISL>
At this point you can enter various secondary bootloader (isl) commands
(see “Secondary Bootloader Commands”). However, do not change the boot
device.
6. When you enter the hpux boot command, the boot process continues without
further prompting, and various messages are displayed until the login prompt
appears, at which point the boot process is complete.