Fedora 22 > Failed to authenticate Password!! [Solved]

asked 2015-07-25 10:07:04 -0500

George Carlin gravatar image

updated 2015-07-30 02:51:50 -0500

After Entering this command password failed to authenticate i cant mount my drives and user account unlock failed to authenticate password.

usermod -a -G vboxusers user_name
passwd user_name


usermod -a -G vboxusers root.admin
passwd user_name root.admin
new pass 12345
retype pass 12345

from http://www.tecmint.com/things-to-do-a...

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I'm not sure just what that second command did, unless there's a user on your system named user_name. And, I'm astonished that passwd didn't object to the proposed password as being far too simple. Does the command su still work?

sideburns gravatar imagesideburns ( 2015-07-25 13:55:36 -0500 )edit

You didn't follow the commands exactly as far as I can see. In techmint tutorial they say

Create an User for Virtualbox as:

usermod -G vboxusers -a user_name

passwd user_name

except that this is wrong, I mean, with usermod -G vboxusers -a user_name you don't create a new user but you add your user (existing user) to vboxusers group and there is no need to execute the second command passwd. You didn't execute this command, but instead usermod -a -G vboxusers root.admin , what is this root.admin ? Also, what is the exact problem you have right now? Can you login to the system?

NickTux gravatar imageNickTux ( 2015-07-26 16:34:43 -0500 )edit

it was fixed i had to restart it after installing the virtualbox it was okay but, i was in panic at first after the restart it change the password to the new current one and it was fix

George Carlin gravatar imageGeorge Carlin ( 2015-07-30 02:51:25 -0500 )edit