Greatest Hits

138
votes
6answers
1.0m views

How to install Google Chrome?

How do you install Google Chrome on Ubuntu?
233
votes
10answers
1.8m views

How do I install a .tar.gz (or .tar.bz2) file?

I have downloaded tar.gz files. But I don't know how to install it. How do I install this kind of file?
392
votes
11answers
1.3m views

Installing Ubuntu on a Pre-Installed Windows with UEFI

I'm absolutely new to Linux. I have been using Windows for all my life, but I have read about Ubuntu (and Linux in general) and I think I'll like it, so I wanted to know how to install Ubuntu on my PC ...
177
votes
8answers
499k views

Screen Resolution Problem with Ubuntu 14.04 and VirtualBox

Environment: Lenovo T530 running Windows 7. Have installed Ubuntu 14.04 on a virtual machine using VM Virtual Box. Have installed all the updates from both Virtual Box and Ubuntu. Problem: While in ...
285
votes
5answers
1.4m views

How to delete a non-empty directory in Terminal?

How do I delete the following directory? I typed: rmdir lampp This error comes up: rmdir: failed to remove `lampp': Directory not empty Is there a command to delete all the files in the ...
486
votes
7answers
1.5m views

How to unzip a zip file from the Terminal?

Just downloaded a .zip file from the internet. I want to use the terminal to unzip the file. What is the correct way to do this?
271
votes
13answers
778k views

Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?

I get this error when trying to use apt-get: E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/) is ...
1887
184
votes
39answers
532k views

How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
159
votes
46answers
785k views

Installing Broadcom Wireless Drivers

I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible. What are the steps to install Broadcom wireless drivers ...
312
votes
9answers
690k views

How do I install Sublime Text 2/3?

I installed Sublime Text 2 on 12.04 as per this tutorial. However I don't have adequate permissions when launching the program from the Unity launcher. For example I cannot install packages, or if I ...
357
votes
5answers
995k views

How do I restart /shutdown from a terminal?

How to shutdown the Ubuntu installed system and restart it by using terminal ?
547
votes
6answers
1.4m views

How do I install a .deb file via the command line?

How do I install a .deb file via the command line?
420
votes
25answers
678k views

How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE?

I want to install Oracle's JRE and to update to the latest version with the Software Updater when they released. Is there a Ubuntu package that is provided by Canonical or Oracle? Before release Java ...
474
votes
6answers
1.5m views

How can I add a new user as sudoer using the command line?

After I add a user using adduser, I can't see it via System->Administration->Users and Groups unless I logout and then login again. Is that normal? Also, can I set a newly added user as a ...
110
votes
1answer
110k views

Mouse cursor flickering and disappearing

I installed Ubuntu today and since the first start up I have a problem with the mouse cursor. It starts randomly disappearing and flickering a lot. I have searched for a solution on Google and here ...
1836
769
votes
18answers
1.2m views

How to list all installed packages?

I'd like to output a list of all installed packages into a text file, so that I can review it and bulk-install on another system. How to do this?
260
votes
7answers
793k views

A command to list all users? And how to add, delete, modify users?

I need a command to list all users in terminal. And how to add, delete, modify users from terminal. That could help in administrating your accounts easily by terminal.
280
votes
8answers
810k views

How to install updates via command line?

When I log into my web server via SSH I see the information: 88 packages can be updated. 80 updates are security updates I tried apt-get update then apt-get upgrade but each time I log in I still ...
335
votes
14answers
915k 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 ...
244
votes
6answers
681k views

How can I create a Windows bootable USB stick using Ubuntu?

I'd like to create a Windows 8 bootable USB stick, but I don't have a Windows machine with me to do so. So how do I do it using Ubuntu?
206
votes
5answers
857k views

How do I change the GRUB boot order?

I have both Windows 7 and Ubuntu installed on a shared machine. Because a lot of the non-developers use Windows, I'd like to change the boot order to make it easier for them. Currently the boot order ...
961
275
votes
8answers
683k views

Could not reliably determine the server's fully qualified domain name?

When I restart my apache server using the command sudo /etc/init.d/apache2 restart I get the following error: Restarting web server apache2 apache2: Could not reliably determine the server's ...
89
votes
7answers
668k views

How to install Chrome browser properly via command line?

I am trying to install chrome browser via command line. I tried this: $ apt-cache search chrome browser The results show that the proper term is "chrome-browser," so I tried that: $ sudo apt-get ...
175
votes
5answers
157k views

How can I accept the Microsoft EULA agreement for ttf-mscorefonts-installer?

After a recent update, ttf-mscorefonts-installer prompted me to accept its license agreement. For some reason my terminal will not allow me to accept, or for some reason I am pressing the wrong ...
102
votes
14answers
659k views

How to remove Ubuntu and put Windows back on?

I have absolutely no experience with Linux, and I desperately need to get my computer back up and running again with Windows. How do I remove Ubuntu?
360
votes
28answers
319k views

Unity doesn't load, no Launcher, no Dash appears

When I login, nothing happens. I am presented with my desktop wallpaper. No Dash, no Launcher, nothing.
1430
76
votes
4answers
675k views

How to install Flash player on Ubuntu?

Even though I have the latest Adobe Flash player 11.2 for Linux in Firefox - ref: Flash player security doubts - a particular online flash game still requests that I update to the latest flash ...
628
votes
78answers
472k views

What Application Indicators are available?

I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor. ...
178
votes
5answers
933k views

Change folder permissions and ownership

I would like the user to have full rights on this folder (as well as all sub-directories and files in it): ~/.blabla currently owned by root. I have found numerous posts (in this forum and ...
204
votes
5answers
861k views

How do I rename a directory via the command line?

I have got the directory /home/user/oldname and I want to rename it to /home/user/newname. How can I do this in a terminal?
303
votes
25answers
455k views

What kinds of desktop environments and shells are available?

This question exists as it fills a specific criterion. While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask Ubuntu ...
311
votes
17answers
597k views

How do I check if I have a 32-bit or a 64-bit OS?

I downloaded and installed the latest 11.04 version from the official Ubuntu site. However I don't know if it installed the 32-bit or 64-bit version. In Windows 7 I could right click My PC and there ...
258
votes
16answers
368k views

How do I fix my locale issue?

I am getting this message every time I do something like starting or stopping a service. perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: ...
44
votes
8answers
435k views

Ubuntu 14.04 install nVidia driver

I recently installed 14.04. But now I need a new driver for my nVidia GeForce GT 630. The former driver was rejected as not compatible with the 64-bit. I found that other driver and when I wanted to ...
35
votes
8answers
357k views

“No root file system defined” error while installing ubuntu

I am new to linux/ ubuntu and just downloaded the v11 of ubuntu to learn linux. I faced this "No root file system is defined" error while trying to install it. This is how I was proceeding - ...
228
votes
12answers
361k views

How to get bash or ssh into a running container in background mode?

I want to ssh or bash into a running docker container. Please, see example: $ sudo docker run -d webserver webserver is clean image from ubuntu:14.04 $ sudo docker ps CONTAINER ID IMAGE ...
137
votes
2answers
342k views

How to install Skype 4.3?

Skype 4.3 is just released with considerable improvements. As a regular Skype user I want to use the latest Skype on my Ubuntu 14.04, but there is no updates from Update Manager. Even in Skype website ...
160
votes
31answers
262k views

Ubuntu gets stuck in a login loop

My Ubuntu is stuck in a login loop when trying to enter my desktop. When I login, the screen gets black and soon after that the login screen comes back. I've read that the problem might be caused by ...
323
votes
9answers
581k views

How do I uncompress a tarball that uses .xz?

I'm used to extracting tarballs with a -xfz flag, which handles gzip and bzip2 archives. Recently I've run into a .tar.xz file and I would like to uncompress it in one step using tar, how can I do ...
250
votes
11answers
834k views

How do I install Guest Additions in a VirtualBox VM?

I've recently installed Ubuntu on Oracle's Virtualbox. Now I want to install the guest additions. I started up my Ubuntu guest OS, clicked "Devices" and chose "Install Guest Additions". Nothing ...
272
votes
31answers
645k views

My computer boots to a black screen, what options do I have to fix it?

I am trying to boot Ubuntu on my computer. When I boot Ubuntu, it boots to a black screen. How can I fix this? Table of Contents: If you are trying to install Ubuntu If you have a dual boot ...
549
137
votes
33answers
453k views

How do I download a YouTube video?

I am running Ubuntu 10.10; Can anybody please provide instructions on how to download videos from YouTube?
234
votes
20answers
457k views

Command for determining my public IP?

If I check with google, I can see my public IP. Is there something on the Ubuntu command-line which will yield me the same answer?
260
votes
39answers
405k views

Reasons why crontab does not work

Often, crontab scripts are not executed on schedule or as expected. There are numerous reasons for that: wrong crontab notation permissions problem environment variables This community wiki aims ...
904
91
votes
3answers
252k views

Authentication token manipulation error

I forgot my Ubuntu password so I booted into recovery and dropped into a root shell prompt and this is what happened: root@username-PC:~# passwd username Enter new UNIX password: Retype new UNIX ...
251
votes
8answers
211k views

How do I fix a “Problem with MergeList” or “status file could not be parsed” error when trying to do an update?

The computer gave me this output in a window: E: Encountered a section with no Package: header E: Problem with MergeList ...
1016
250
votes
9answers
592k views

What does “sudo apt-get update” do?

I am wondering what sudo apt-get update does? What does it update?
111
votes
17answers
554k views

How to restart the networking service?

I tried to use sudo service networking restart and sudo /etc/init.d/network restart but they both crash the window manager and I can no longer use my keyboard for input into X. when I use the ...
161
votes
13answers
498k views

How to force a clock update using ntp?

I am running Ubuntu on an ARM based embedded system that lacks a battery backed RTC. The wake-up time is somewhere during 1970. Thus, I use the NTP service to update the time to the current time. I ...
511
291
votes
12answers
672k views

How do I upgrade to a newer version of Ubuntu?

What are the different ways I can use to upgrade Ubuntu from one release to another?