HP-UX HB v13.00 Ch-02 - System Boot

HP-UX Handbook – Rev 13.00 Page 7 (of 14)
Chapter 02 System Boot
October 29, 2013
See isl man page for further details.
Step 3: Loading the Kernel
The hpux program (also known as the secondary loader) figures out what HP-UX kernel to load
and what arguments to pass to it. The AUTO file or user input supply the loader’s arguments.
You can display the content of the AUTO file within ISL:
ISL> lsa
Auto-execute file contains:
hpux
or from the command line of a running system:
# lifcp /dev/rdsk/c1t6d0:AUTO –
hpux
You can also pass arguments to hpux in order to specify the disk and section of the disk to boot
from, the kernel file and whether to boot to single user, maintenance or quorum mode.
The Syntax is as follows:
hpux (<HW path of boot disk>;<section>)<path to kernel> <options>
simply using hpux is equal to:
hpux (;0)/stand/vmunix
The possible options are:
-is single user mode boot
Activate vg00, mount only / and /stand, do not go through the startup script.
So e.g. the network is not started and other users cannot login.
-lq quorum mode boot
Same as single user mode but the root VG (vg00) gets activated even if the LVM
quorum is not present, i.e only 50% or less of the disks are available. This option can
be used if a mirrored root disk is defect.
-lm maintenance mode boot
vg00 will not be activated. The root FS is mounted using the auxiliary device file
/dev/root. In this mode you are able to export vg00 and perform LVM low level
troubleshooting.
You may also combine the options above. In order to boot without quorum check into single user
mode type:
ISL> hpux -is -lq