Linked Questions

196
votes
14answers
467k views

How do I reset a lost administrative password?

I'm working on a Ubuntu system, and my client has completely forgotten his administrative password. He doesn't even remember entering one; however it is there. I've tried the suggestions on the ...
53
votes
5answers
154k views

How to manage users and groups?

Just switched from 10.04 to 11.10. I'm wondering about the limited options in the GUI for managing users and groups. Where is the old GUI to change groups, id's, etc. I know that I can do this from ...
40
votes
3answers
14k views

What is the difference between the 'sudo' and 'admin' group?

I noticed that two groups are granted similar-looking permissions in /etc/sudoers: # Members of the admin group may gain root privileges %admin ALL=(ALL) ALL # Allow members of group sudo to execute ...
43
votes
3answers
8k views

When to use pkexec vs. gksu/gksudo?

There are two general ways to run applications graphically as root (or, more generally, as another user). Programs like gksu, gksudo, and kdesudo are graphical frontends for sudo. In contrast, pkexec ...
28
votes
1answer
32k views

How do I boot into a root shell?

When booting to the graphical desktop fails we sometimes are recommended to boot into a "root shell" or to boot in "recovery mode". How do I do that?
10
votes
7answers
13k views

How can I run an application with a GUI as admin from a non-admin user session?

I defined 2 user accounts: one with admin privilege (with sudo right) => lets call it adminuser. a 2nd one without any privilege => lets call it normaluser and I configure the autologin on this 2nd ...
13
votes
2answers
2k views

Why am I suddenly not a sudoer anymore? [duplicate]

I booted up Ubuntu 12.10 today, and when trying to sudo, I entered my password as usual but it had said I'm not a sudoer. So I go and check my account under User Accounts, and for some reason Im now a ...
5
votes
2answers
9k views

How to boot to root shell when GRUB recovery menu fails to load a shell?

Can't seem to boot into root shell in recovery mode from GRUB. I try booting into recovery mode from the GRUB menu and don't ever get a shell, just log messages from the kernel bootup. Ctrl+Alt+F1-F12 ...
4
votes
2answers
8k views

sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0

Whenever I try to do anything at all that requires my password it returns this: u7ur7l3@ubuntu:~$ sudo sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0 sudo: fatal error, unable to load plugins ...
2
votes
1answer
5k views

sudo nautilus command is not working properly in ubuntu 13.04

Though i tried many commands to overcome this warining but am unable to overcome them so help me to get rid of this warnings root@radhika-M68MT-D3:~# sudo nautilus (nautilus:2642): IBUS-WARNING ...
2
votes
2answers
3k views

How can I give admin permissions to my account? [duplicate]

11.10 has allowed me to (stupidly) remove my admin level login leaving me with only my standard log in. I am no longer able to modify any software, update etc. How can I 'uprate' my user login back ...
2
votes
2answers
1k views

what happens if all users are set as standard while root password not set

I don't dare to do as in the title. So I set root password first with sudo passwd root, and then I change all other users to be standard user, none administrator, so no user can sudo. If I want to set ...
0
votes
2answers
4k views

No root privileges when using GUI

So I'm logged in as the user 'Shannon', but can't gain root access through the GUI when I'm prompted to install a program for example. However using sudo su, type in the root password, gain access ...
0
votes
1answer
2k views

how to set up root account on a new install?

I just installed ubuntu on my netbook and am loving it!! What I’m now trying to do is set up my root account. I tried to run the following command at a command prompt: su root and use the ...
0
votes
2answers
719 views

What is the command to switch to normal user? [duplicate]

I am trying to "su/sudo" command to switch to a regular user. It asks me password and I enter admin password then it says su: Authentication failure. How can I switch to regular user, what is the ...

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