topic Re: any ways to recover superuser password ? in Operating System - HP-UX

any ways to recover superuser password ?

dominic_10 — Thu, 22 Sep 2005 04:01:36 GMT

need advice on ways to recover or overwrite the superuser password without re-installing OS and formatting hard-disk

lost the superuser password.

thanks...

Re: any ways to recover superuser password ?

MarkSyder — Thu, 22 Sep 2005 04:04:41 GMT

Boot in single user mode. You will then be allowed to reset the password.

Thee are password cracking tools on the internet, but in my experience they take three days to run (depending on the system) and still don't crack every password.

Mark Syder (like the drink but spelt different)

Re: any ways to recover superuser password ?

Joseph Loo — Thu, 22 Sep 2005 04:06:22 GMT

hi,

there is no way to recover password, u have to reset it.

if u r on HP-UX, u have to boot to single user mode and reset it.

regards.

Re: any ways to recover superuser password ?

Devender Khatana — Thu, 22 Sep 2005 04:07:46 GMT

Hi,

Is there some current session logged with root or equivalent user?

If yes from there you can reset the password of root. Otherwise you need to boot to single user mode. By doing so you will be able to loginto console from root without being asked for password. Change password here and reboot to normal boot level.

To go to single user mode.

Halt at ISL prompt. (Press anykey within 10sec when message comes on console)
ISL>bo pri
Interact with IPL> Y
IPL>hpux -is

It will bring you to # prompt on console where you can change root password.

HTH,
Devender

Re: any ways to recover superuser password ?

Zigor Buruaga — Thu, 22 Sep 2005 04:08:09 GMT

Hi,

Do you have any other server allowed to do rlogin as root to this one?
If not, you will need to reboot your server in single user mode, and then change the root passwd.

Regards,
Zigor

Re: any ways to recover superuser password ?

Mark Nieuwboer — Thu, 22 Sep 2005 04:09:45 GMT

Hi dominic,

You can't recover the password but if you have openview manager. Start opc and logon as opc_admin. after this start sam for the node.

grtz. Mark

Re: any ways to recover superuser password ?

Arunvijai_4 — Thu, 22 Sep 2005 04:10:09 GMT

Boot in single user mode from ISL> and reset root's password.

L> hpux -is

INIT: Overriding default level with level 's'

INIT: SINGLE USER MODE

INIT: Running /sbin/sh
#
#
# fsck

# mount /usr

# mount /var

# passwd
Changing password for root
New password:
Re-enter new password:
Passwd successfully changed

# init 3

Re: any ways to recover superuser password ?

Muthukumar_5 — Thu, 22 Sep 2005 04:11:51 GMT

If you have any logged sessions with root user then use passwd command to change it.

Else as usual,

1) Boot machine with single user mode
2) change passwd and reboot with normal mode

With out the root passwd you can not do remote transfer /etc/passwd file too.

hth.

Re: any ways to recover superuser password ?

Gavin Clarke — Thu, 22 Sep 2005 04:17:26 GMT

This post could help, I think you might need to be logged in as root to do it though:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=773616

Otherwise boot to single user mode or find another server that you can rlogin/remsh from, as the others have said.

There is certainly no need to re-install the OS.

Re: any ways to recover superuser password ?

Gavin Clarke — Thu, 22 Sep 2005 04:23:01 GMT

Scratch that bit about needing to be in as root, the post I linked to gives instructions on how to boot into single user mode and reset root password, see SEP's answer.

I thought that there was a way of doing it on the forums without booting to single user mode, perhaps I'm wrong.

Re: any ways to recover superuser password ?

Raj D. — Thu, 22 Sep 2005 04:42:48 GMT

Hi Dominic ,

You can reset the root password through rebooting the system and interupting the boot process at PDC then invoke ISL,

ISL> hpux -is

# passwd root
Changing password for root
New password:******
Confirm Password: ******

# shutdown -r -y 0

Cheers,
Raj.

Re: any ways to recover superuser password ?

dominic_10 — Thu, 22 Sep 2005 05:40:33 GMT

Many Thanks to all for the advice ...
Managed to reset the password.

Re: any ways to recover superuser password ?

Raj D. — Thu, 22 Sep 2005 06:06:25 GMT

Hi Dominic,

Here is your forum profile :

"I have assigned points to 3 of 13 responses to my questions. "

Try to make it 13 of 13 , you will get good response...

Enjoy ,
Cheers,
Raj.