Greatest Hits

293
votes
9answers
917k views

Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)

I bought a computer with Windows 8 Pre-Installed, but I didn't like Windows 8, so I decided to install Ubuntu as a second operating system. I'm absolutely new to Linux. I have been using Windows for ...
151
votes
9answers
1.3m 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?
138
votes
37answers
404k 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 ...
94
votes
46answers
502k 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
24answers
510k 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 ...
38
votes
6answers
243k views

How to install Google Chrome on Ubuntu 14.04?

How do you install Google Chrome on Ubuntu 14.04?
157
votes
13answers
476k 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 ...
1257
81
votes
7answers
183k 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 ...
86
votes
1answer
68k 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 ...
1316
137
votes
4answers
160k views

How do I patch/workaround SSLv3 POODLE vulnerability (CVE­-2014­-3566)?

After the BEAST attack and Heartbleed bug, now I've heard about a new vulnerability in SSL/TLS called POODLE. How do I protect myself against being exploited? Are only servers or also clients ...
133
votes
5answers
624k 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 ...
153
votes
5answers
611k 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 ...
730
554
votes
67answers
427k views

What Application Indicators are available?

This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions ...
93
votes
2answers
202k 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 ...
241
votes
14answers
590k 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 ...
342
votes
5answers
824k views

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

How do I install a .deb file via the command line?
306
votes
5answers
905k 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 ...
23
votes
7answers
254k views

Ubuntu 14.04 install NVIDIA driver

After I have managed to get running Ubuntu 14.04 (look at my last question about booting upgraded Ubuntu) now there is another problem: To continue with that story: I found a way to burn the image on ...
212
votes
8answers
627k 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?
117
votes
5answers
113k 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 ...
174
votes
8answers
398k 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 ...
435
votes
15answers
627k 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?
188
votes
9answers
303k 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 ...
176
votes
4answers
465k views

How do I restart /shutdown from a terminal?

How to shutdown the Ubuntu installed system and restart it by using terminal ?
35
votes
4answers
347k 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 ...
148
votes
7answers
425k views

How to install updates via command line?

Good day, 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 ...
22
votes
8answers
236k 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 - ...
64
votes
15answers
368k views

How to remove Ubuntu and put Windows back on?

I have absolutely no experience with Linux, and I desperately need to get my laptop back up and running again with Windows. How do I remove Ubuntu?
60
votes
7answers
365k 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 ...
233
votes
25answers
202k 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.
886
206
votes
29answers
454k 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 ...
445
224
votes
17answers
413k 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 ...
231
votes
23answers
300k 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 ...
237
votes
12answers
476k 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?
92
votes
30answers
304k views

How do I download a YouTube video?

For a school project I need to download three youtube videos and save them to a CD. I am running Ubuntu 10.10; can anybody provide instructions on how to do this? I'm fairly new to Ubuntu so the more ...
179
votes
7answers
156k 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 ...
781
44
votes
9answers
161k views

How to install Skype with Ubuntu 13.04

jovan@jovan-HP-ProBook-4540s:~$ sudo apt-get install skype Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This ...
110
votes
5answers
269k views

How can I create a Windows bootable USB stick with 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 with Ubuntu/Linux?
32
votes
5answers
406k views

Recovering moved .mod files using grubrescue

I did a dumb thing... I forgot that Ubuntu 10.04 (Lucid Lynx) switched to GRUB 2 which puts a ton of *.mod files (kernel modules) in /boot/grub. I thought they were soundtrack files put there ...
176
votes
31answers
260k 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 ...
627
115
votes
12answers
279k views

How to install Eclipse?

I want to install the latest version of Eclipse but the Ubuntu Software Centre contains an older version. Is there a PPA or some other way to install latest Eclipse? Please describe the steps for ...
128
votes
5answers
93k views

What is the CVE-2014-6271 bash vulnerability (Shellshock) and how do I fix it?

Recently, there have been news going around regarding "CVE-2014-6271" (See USN-2362-1), which is a vulnerability in Bash. How do I know if I am affected by this, how can I fix it, and why should I ...
89
votes
6answers
496k 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 ...
59
votes
8answers
173k views

What is the path to the kernel headers so I can install vmware?

I installed the VMware bundle on my Ubuntu 11.04 successfully but when I open it it gives me this window and I don't know the path to this C headers.
141
votes
6answers
184k views

Why does a Ubuntu guest in VirtualBox run very, very slowly?

I'm using currently Ubuntu 12.04 LTS as a host machine, and I've virtualized three machines: a Xubuntu 12.04 guest a Windows 7 guest a Ubuntu 12.10 guest All the guests have the same VirtualBox ...
95
votes
6answers
224k 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.
37
votes
4answers
220k views

How to install utorrent step by step?

I am trying to install utorrent instead of using the torrent apps and I just came off windows seven can someone help me?
161
votes
14answers
193k 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: ...
145
votes
7answers
174k views

Is FFmpeg missing from the official repositories in 14.04?

I tried to install ffmpeg in trusty/Ubuntu 14.04 and got the following message: $sudo apt-get install ffmpeg Reading package lists... Done Building dependency tree Reading state ...
115
votes
1answer
183k views

Installed Teamviewer using a 64-bits system, but I get a dependency error

I was trying to install Teamviewer, but I was getting a dependency error. I tried to install them, but with no luck. I'm getting this error: Unpacking teamviewer (from teamviewer_linux_x64.deb) ... ...