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Old 06-20-2007, 04:37 PM   #1
Registered: Aug 2005
Posts: 298

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I lost all my privilages [Kubuntu] [usermod]

I was using the usermod to add a group to myself. according to

usermod - Modifying existing user


* -d home directory
* -s starting program (shell)
* -p password
* -g (primary group assigned to the users)
* -G (Other groups the user belongs to)

Example: To add the group 'others' to the user roger
usermod -Gothers roger
Yes I tryed that

sudo usermod -Gwww-data myuser

and now the only group I'm in is www-data. I can't even sudo it back to normal.

Is there anything I may do? root is disabled.

Thank you!
Old 06-20-2007, 05:00 PM   #2
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Location: California
Distribution: Fedora , CentOS , RHEL
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You can boot into single user mode...or you can sudo to su (this has worked for me at times):

sudo su -
it will prompt you for your users password.
Old 06-20-2007, 07:01 PM   #3
Registered: Aug 2005
Posts: 298

Original Poster
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I tryed sudo su however that didn't work. What I did is just insert the ubuntu CD and boot from CD. Go into the file system on the hardrive and open

sudo vim /etc/group

then just add myself to the proper groups. Restart and groups are back to normal yay :).

the format of the groups is as follows

group_name:x:group_number:user1,user2 ....
here is an example
where pika and flap are supposdably real names and part of the group www. I don't know whats with the x its just there.

and that website above should be updated. since the users are not added but set.

Last edited by Four; 06-20-2007 at 07:02 PM.


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