how to boot into single user mode in itanium/ia64

[Mary Ann Lipa]

hi
need help badly...
my system got corrupted and i am trying to recover...
i know there is no way i can boot fro tape..
but how can i boot into single user mode?
i have hpux 11.23 o/s.
thanks very much!
ann

P.S. this thread has been moved from Workstations - Itanium-Based, hp9000, Visualize to HP-UX > sysadmin. - Hp Forum Moderator

[Michael Schulte zur Sur]

Hi

I just wonder, is it
hpux -is
?
When the system is still running, use
init s

greetings,

Michael

[Mike Stroyan]

You indicate at boot that you want to interact with the IPL and then enter "hpux -is" at the ISL prompt. It is discussed in "Managing Systems and Workgroups" at

http://www.docs.hp.com./cgi-bin/onlinedocs.py?mpn=5187-2216&service=hpux&path=00/00/47

[Scot Bean]

Mike, the ISL prompt does not exist on Itanium machines.

From the EFI prompt, use "hpux -is".

[Mike Stroyan]

The EFI shell is different.
Typing 'hpux -is' at the 'Shell>' prompt won't boot to single user mode.

You need to get into the hpux boot loader (which I called ISL) by either using the boot manager menu or by typing 'hpux' from the EFI prompt.

It will say 'Press Any Key to interrup Autoboot'. Press a key.

Then you can use 'hpux -is' or 'boot vmunix -is' at the 'HPUX>' prompt to boot into single user mode.

[Mary Ann Lipa]

Thanks Michael, Scott and Mike.

[purushottamaher]

Hi Mary Aan Lipa,

Its very easy to start your server in single user mode, But for that you have to follow few steps carefully.

You can follow the below steps to reference :

http://expertisenpuru.com/how-to-start-hp-ux-server-in-single-user-mode/

This will definately help you.