Booting HP-UX UNIX In Single User Mode

Lets see how can we boot HP Unix System from the single user mode.Follow the instructions:

• Interrupt the boot process when prompted by pressing [ESCAPE] key. 

 You will see message as follows:

Selecting a system to boot. To stop selection process, press and hold the ESCAPE key...

 OR

Autoboot from primary boot path enabled.

• Override the above screen , press any key within 10 seconds.

•  Type boot pri isl at the prompt:

• Now you will be in boot pri ISL prompt(boot pri ISL>). Type the command-

           hpux -is /stand/vmunix OR hpux -is

In the above example, the -i option is used to make the system come up in run-level s, for single user mode of operation. /stand/vmunix is optional but some time required. Usually, 'hpux -is' is more than enough to boot into single user mode.