Questions tagged [sudo]

The sudo command allows users to run programs with the privileges of a different user (normally the root user). Use this tag for questions related to configuring and using the sudo command.

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482 views

Ubuntu password no longer works after login

I recently installed Ubuntu 22.04 on a laptop (dual boot with Win 11) and something weird happened to my password. I can only use it to login when I select a user (the booting GUI) and after that, ...
0 votes
0 answers
378 views

Buildozer Error "pkg-config location is not supported on linux for prerequisite: openssl"

I want to make apk file for android, using Buildozer. This my game: https://youtu.be/t7jtlkXcS68 I'm getting an error: [WARNING]: pkg-config location is not supported on linux for prerequisite: ...
3 votes
4 answers
23k views

python module not found in sudo mode (ubuntu 20.04)

I am using ubuntu 20.04 to write python programs. I usually install python packages without the sudo prefix. But I noticed that if I go into the sudo mode and then try to import a previously installed ...
0 votes
1 answer
4k views

Why am I getting error: `found a tab character that violate indentation` in my Netplan YAML file?

I am getting the following error when trying to do sudo netplan apply: Invalid YAML at //etc/netplan/lan-segment.yaml line 11 column 0: found a tab character that violate indentation This happened ...
1 vote
1 answer
490 views

sudo apt update error, plex and pi-hole not working

I recently installed Ubuntu 20.04 (note: I am a complete novice) on my old windows laptop. After a few weeks I wanted to install Pi-hole and found out I have an sudo apt update error. Now Plex has ...
1 vote
1 answer
1k views

Cannot use systemctl as a user after a "sudo su - media" : Failed to connect to bus: $DBUS_SESSION_BUS_ADDRESS and $XDG_RUNTIME_DIR not defined

I'm trying to create a service as a user but it does not work : admin $ sudo su - media $ systemctl --user edit fmgr-copro.service --full --force Failed to connect to bus: $DBUS_SESSION_BUS_ADDRESS ...
3 votes
1 answer
1k views

"sudo command" not working, but after sudo su when I enter command is working [duplicate]

My Ubuntu version is Ubuntu 22.04.2 LTS. I have one user (ahmet) and it is member of sudo. I download intellij idea and I want to use its mvn lib for everyone. I edited /etc/bash.bashrc as in this ...
3 votes
1 answer
267 views

sudo apt update: Malformed entry 1 in list file /etc/apt/sources.list.d/pgdg.list

I have been trying to install pgadmin4 for a while, (but no success) so I can have a GUI to navigate postgresql server. Don't why but simple update command is also failing now. What did I do? where is ...
1 vote
3 answers
2k views

How to get email for unauthorized sudo attempts?

As per this question, unauthorized attempts to sudo are saved in /var/log/auth.log and by default, a mail is sent to /dev/null. Is there any way to prevent that from happening and send the mail to an ...
0 votes
1 answer
404 views

Permission Denied when trying to Install Anaconda Public GPG Key to the Trusted Store

Context: I'm setting up JupyterHub on an EC2 instance running Ubuntu 22.04 LTS and I'm trying to install the Anaconda Public GPG Key to Trusted Store via the following command: curl https://repo....
1 vote
1 answer
299 views

Fingerprint reader invoked for login but not for sudo

Ubuntu 22.04.2 LTS Framework 13 I have enabled the fingerprint reader in Settings→Users and it is invoked whenever I start the laptop, but it is not asked for in Terminal when I am using sudo or ...
1 vote
1 answer
82 views

How to add an Ubuntu user that is administrator and that has sudo access?

I've installed Ubuntu and enabled the home folder encryption, I was working on it and everything was right, but I've changed my password recently and forgot the old one, so I got the home folder ...
1 vote
1 answer
182 views

Ubuntu login loop, but have another user account

I cannot login to my main user account. I have entered the password right. When I enter the password correctly, the ubuntu login window freezes for around 3 seconds and then just returns to the login ...
17 votes
5 answers
19k views

File in /etc/sudoers.d/ not recognized

Running a fresh install of Ubuntu server 16.04.1, I tried to add a file in /etc/sudoers.d/ to give one user root privileges for a certain command. I added the file /etc/sudoers.d/servicetest with the ...
0 votes
0 answers
24 views

Does adding a standard account to sudoers file defeat the purpose of standard account?

In order to avoid elevating privileges to the admin account every time I have to type in a sudo command (occasionally) I was thinking of adding the standard account that I use for everyday activity to ...
0 votes
2 answers
3k views

How do I run a service as a non-root user at boot, without entering a password?

I have a process that I want to start when the host boots. I want that process to run as a non-root user. And I won't necessarily be around to enter a password on the tty when it starts. Here's my ...
269 votes
11 answers
1.9m views

How do I start/stop mysql server?

I tried to find in some articles describing how to correctly start & stop mysql server. I found this link: How to start/stop MySql server on Ubuntu 8.04 | Abhi's Blogging World I ran this ...
0 votes
1 answer
62 views

Why Did File Owner Change?

Ubuntu Server 22.04 Encountered the following problem during a Linux class: First lesson: User Management: sudo useradd -m kaylee sudo passwd kaylee su - kaylee Exited user kaylee, and started the ...
0 votes
0 answers
807 views

Couldn't open intellij as sudo user It shows error: XDG_RUNTIME_DIR not set in the environment

When I try to open intellij as sudo user, Command : sudo intellij-idea-community Result: CompileCommand: exclude com/intellij/openapi/vfs/impl/FilePartNodeRoot.trieDescend bool exclude = true error: ...
88 votes
8 answers
282k views

sudo: source: command not found

I've been updating some of the default profile for bash, and saw from the tutorials I was following that I could reload the new profile with the new environment settings by using: source /etc/bash....
1 vote
3 answers
1k views

No password prompts in Ubuntu (except login and lock screen)

I would only like a password prompt at login and lock screen (i.e, to make sure others don't use my computer). However, when I am at my computer, I do not want to be prompted at all for my password, ...
4 votes
1 answer
2k views

sudo select auth method (password vs fingerprint)

In Ubuntu 20.04, after activating and enrolling my fingerprint in Applications menu ->Users and after enabling the fingerprint in terminal using sudo pam-auth-update and checking the fingerprint ...
0 votes
0 answers
36 views

oracle cloud service user - cant log back in or use sudo anymore

Im using oracle cloud services My issue started that i couldnt start a program, then i got to know that the problem was root being the owner. So I needed to change to ubuntu:ubuntu throught command ...
0 votes
0 answers
18 views

How to create a user and give it sudo privileges [duplicate]

By mistake, I removed my own user from the "sudo" user group. Now, every time I try to sudo something, I get ... is not in the sudoers file. This incident will be reported.. I can't sudo ...
1 vote
1 answer
101 views

Forgot sudo password, can't get to grub on boot, can't boot from USB

I don't mind wiping all data. I have looked up similar issues but can't really find anyone in my situation. Many answers assume I can enter grub menu, others assume you can access the live USB, and ...
0 votes
2 answers
3k views

Disable sudo user to edit sudoers file

I want to disable a user to edit sudoers file, so I added a line in sudoers file: Cmnd_Alias BLOCK = !/usr/sbin/visudo, !/bin/nano /etc/sudoers it blocks if a user tries to edit like this: sudo ...
1 vote
1 answer
414 views

Errors encountered while processing "key-mapper"

I'm trying to set up vulkan on my Ubuntu VM (running on MacOS Big Sur 11.3.1) and I keep getting this error when running "sudo apt install vulkan-tools". Here's the entire log: Reading ...
6 votes
2 answers
8k views

How to disable sudo authentication via fingerprint in fprint

I have installed fprint for my laptop (thinkpad t450s) and it works very well. But i mainly want to use it for login, and being able to authenticate sudo with fingerprint is a great addition. But ...
0 votes
0 answers
751 views

permission denied when activating virtual environment

When typing from local user the following command: 'source .env/bin/activate' returns 'bash: .env/bin/activate: Permission denied' I can 'sudo bash' and then 'source .env/bin/activate' and that works ...
2 votes
3 answers
6k views

"PlayOnLinux is not supposed to be run as root. Sorry"

This is the exact message I get in terminal when running sudo playonlinux Any help? dps@dps-ubuntu:~$ sudo playonlinux Looking for python... 2.7.15rc1 - wxversion(s): 3.0-gtk3 selected 1 PlayOnLinux ...
269 votes
6 answers
53k views

Where are sudo's insults stored?

For those who like humour, sudo can be configured to print a random more or less insulting or funny phrase instead of the neutral Sorry, try again. by adding the line below to /etc/sudoers (using the ...
0 votes
1 answer
1k views

How to correctly insert sudo password in sudo command?

I want to log in to user2 via bash script, so my script contains: sudo -i -u user2 Also I don't want to enter my sudo password by hands. Before I did something like this: echo "my_sudo_password&...
0 votes
1 answer
415 views

i ran this command " sudo rm -r -f /home/fille/Desktop/"

i ran this command " sudo rm -r -f /home/fille/Desktop/" desktop is gone including the trash bin and i get this error when i try to create a new folder from my desktop," see image 1 &...
2 votes
1 answer
442 views

Piping sudo <command> through another command adds excess whitespace

Background I wanted to identify if <complex command pipeline> outputs any non-printable characters (it must be run with sudo), so I piped the output through od and was surprised to see each line ...
4 votes
1 answer
7k views

How do I gain admin access without a root password and no sudoers?

I am running VirtualBox on a Windows Machine, and installed Ubuntu Linux 22.04 LTS. During the install, I set up the initial user. However, there appears to be no way to make this user have admin (...
0 votes
0 answers
29 views

E: Malfored entry 1 in list file /etc/apt/sources.list.d/virtualbox.list (Suite) E: The list of sources could not be read [duplicate]

I was installing virtualbox and when i enter this: $ echo "deb {arch=amd64} http://virtualbox.org/virtualbox/debian > (lsb_release -cs)contrib > (lsb_release -cs) contrib" | sudo tee /...
1 vote
1 answer
382 views

node/nvm/npm installations : sudo vs. user install leads to trouble?

The problem appears to be inconsistency with root and user installed node (v.19.7.0), nvm (0.39.3), and npm (v. 9.5.0) and a specific npm-installed package called svg-path-interpolator on an Ubuntu 22....
0 votes
1 answer
878 views

Can't paste files into a Windows directory while using Ubuntu 22.04

I can't copy files or folders from Ubuntu 22.04 to a Windows partition [D:] As you noticed I was able to do that, but I reinstalled Ubuntu on an SSD instead of HDD, maybe because the first time I ...
43 votes
3 answers
73k views

How to umount non-sudo sshfs created directory

I used sshfs without sudo to create a directory like sshfs [email protected]:/media/user/harddrive /temp/user/harddrive but when I want to umount the /temp/user/harddrive directory with umount /...
1 vote
0 answers
150 views

Open GUI as admin

I'm new to linux and I'll try not to make this ranty but is there an easy way to open a GUI app as sudo? Is it asking for much for the context menu to have "Run as sudo" or at the least &...
0 votes
2 answers
1k views

Execute a bash script containing the sudo command in rootless docker

I am working in a rootless docker environment and I want to execute a shell script that contains some commands with sudo, but the command sudo is not recognized in my terminal (probably because it is ...
18 votes
5 answers
328k views

How to run applications as root?

I am having some strange issue with Kate and Kwrite. When I click on Open File, it crashes with segmentation fault. I am a complete newbie to Linux, and I think the issue is that I am not running ...
1 vote
1 answer
721 views

NOPASSWD option not working in sudoer file

I know this has been asked before, but I tried answers from dozens of other posts, and nothing is working. I've also used this on other servers successfully, so I'm not sure what I'm doing wrong this ...
0 votes
0 answers
21 views

sudo apt update error about cdrom [duplicate]

E: The repository 'cdrom://Ubuntu 22.04 LTS _Jammy Jellyfish_ - Release amd64 (20220419) jammy Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is ...
0 votes
1 answer
3k views

In a bash script, how do I change from root user to another user using su and then exit?

I've looked at How do I run a 'sudo' command inside a script? but this seems to be a different issue. I want to run a script to change from root to the mastodon user using su, run Rails ...
0 votes
1 answer
779 views

Apps installed via Snap Store don't launch (Ubuntu 22.04)

I have a problem with the Ubuntu 22.04.1 snap store. In fact, every time I install an application using snap store, I can't use it, i.e. whenever I want to launch the application that I have installed,...
5 votes
2 answers
6k views

How to sudo edit in Midnight Commander?

I have the habit of running Midnight Commander as my normal user (so that I cannot cause too costly accidents). Sometimes however I find that editing a configuration file in the system partition ...
-4 votes
1 answer
373 views

Error in sudo apt update [duplicate]

I when write sudo apt update give me this error Hit:1 http://eg.archive.ubuntu.com/ubuntu jammy InRelease Get:2 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB] ...
0 votes
1 answer
61 views

In what line of sudoers do I put this?

%newgroup, !newuser ALL=(ALL:ALL)NOPASSWD:ALL, !/usr/sbin/iptables I have read that it is put at the end, but I am not sure about it
3 votes
1 answer
309 views

Why does installing "pdftk-java" change root certificate authority? Is this bad?

new ubuntu user here. I installed pdftk-java using sudo-apt, and it changed a lot of my root certificate authorities. Is this bad? I don't understand why this root certificate authority is needed by a ...

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