"Authentication Manipulation Error" when trying to reset my password

Question

To reset forgotten password in 12.04 LTS.

I am able to boot the computer. i choose root option and then come to password changing. they ask me to enter new UNIX password which i do type. but at last they give a command saying

AUTHENTICATION MANIPULATION ERROR

and my password is unchanged.

score 5 · Answer 1 · edited Jul 01 '12 at 07:10

5

Have a look at our guide on how to reset your password using recovery mode on 12.04 it should help, you probably just need to remount the drive with write permissions after dropping to a root shell using this command :

mount -o rw,remount /

Please see this page on my website for more information.

edited Jul 01 '12 at 07:10

Eliah Kagan

117,780

answered Jun 26 '12 at 17:43

Fernhill Linux Project

3,899

score 1 · Answer 2 · edited Apr 13 '17 at 12:24

1

Even if this error occurs in rescue mode, you should be able to reset the password from a live CD/DVD/USB using this method or this method.

edited Apr 13 '17 at 12:24

Community

1

answered Jun 26 '12 at 23:56

Eliah Kagan

117,780

score 0 · Answer 3 · edited Sep 19 '13 at 13:31

0

Before choosing the option root, choose grub (to mount the filesystem as read-write). Once it is done, choose root option and change the password. Your password will be updated successfully.

edited Sep 19 '13 at 13:31

Braiam

67,791
32
179
269

answered Sep 19 '13 at 05:44

Jothi

1

"Authentication Manipulation Error" when trying to reset my password

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