How to enter single user on hp Itanium machine (modify root password)

Itanium into a single user to change the root password
1. Log in to iLO MP and enter CO to select System Console.
When accessing the console, make sure you are in the EFI Boot Manager Menu (EFI Main Menu). If in other EFI menu
, select the Exit option from the submenu until you return to the screen titled EFI Boot Manager.
From the EFI Boot Manager menu, select the EFI Shell menu option to access the EFI Shell environment.
2. In the EFI Shell environment, execute the map command to list all currently mapped bootable devices.
The associated bootable filesystem is usually listed as fs0:, fs1:, and so on.
Shell> map
Shell> fs0:
fs0:\> hpux
3.Seconds left till autoboot - 9 any key is interrupted during the countdown
From the HPUX.EFI interface (HP-UX Boot Loader prompt HPUX>), enter the boot -is vmunix command to
User (-is) mode boots HP-UX (/stand/vmunix kernel).
HPUX> boot -is vmunix
If you want to enter normal mode, enter here
HPUX> boot vmunix
 
HP9000 into single user:
Restart the machine, after the self-test is completed, the line "To discontinue, press any key within 10 seconds" will appear,
At this time, if you press any key, the system will abort the startup and enter the Main Menu.
Type "bo", when the system asks "Interact with IPL (Y or N?)?", enter "y".
After the prompt ISL>, enter "hpux -is", the system enters the single-user state.
 
Trust mode to non-trust mode trust system => non-trust system
#/etc/tsconvert -r
 
Under non-trust system:
What to do to recover the forgotten root password: Restart the machine, in single-user state.
Execute the following command to change the password:
#passwd
     New password:
     Re-entry new password:
 Finally run init 3 to multi-user mode:
# init 3

 

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