Re: Redhat 6.2 root password
 

I could not log in as root, due to 'access denied' error. I tried to edit the GRUB boot in single user mode, and change the root password but got this message: "passwd: Authentication token manipulation error". Any solution to resolve this, please? I have looked through a few posts but none has got it resolved. Thanks.

if you're really in single user mode / runlevel 1... passwd should work... Is the system functional other than that? Can you run passwd via sudo as a normal user? "[user@host ~] # sudo passwd"

token manipulation says that *maybe* the actual entry in /etc/shadow is broken? Maybe you can post the contents of the file? You can delete the password from the file by changing

to

and saving it.