Hi, we have a HP-UX server of model 9000/800/rp4440. We have been trying to reset the root password but are in vain.I used the following command and also are the outputs which i have received.

# passwd
Changing password for root
New password:
Re-enter new password:
Unexpected failure. Password file unchanged.
#

# passwd root
Changing password for root
New password:
Re-enter new password:
Unexpected failure. Password file unchanged.
#

Kindly suggest.
If you need any info just ask.