Greatest Hits

55
votes
15answers
140k views

How can I install Windows after I've installed Ubuntu?

I have Ubuntu on my laptop. Now I want install Windows 7 in a dual-boot. How can I do this? I can't lose my Ubuntu files, and I'm afraid that I might break GRUB.
31
votes
4answers
223k views

How do I install .run files?

My PC has both Ubuntu and Windows 7 installed. I have installed all my drivers in Windows like Nvidia graphics, motherboard etc. Shall I install them in Ubuntu too? I looked on the web for my Nvidia ...
196
votes
5answers
170k views

How to upgrade a single package using apt-get?

How do I update a single package? As far as man apt-get says apt-get upgrade doesn't take a package/list of packages as parameter: upgrade upgrade is used to install the newest versions of ...
213
60
votes
8answers
236k views

How do you restart Apache?

I switched from SLES to Ubuntu and now I want to restart my local server. In SLES I used : rcapache2 restart but this somehow seems not to work in Ubuntu. :( How do i restart my Apache?
25
votes
4answers
123k views

How do I enable the “Universe” repository?

How do I get to Universe Repository of Ubuntu software as mentioned in Ubuntu 12.04 LTS? I am installing 12.04 Ubuntu. Please help.
40
votes
8answers
85k views

How to switch language keyboard combination?

I would like to type Hebrew in Ubuntu. I tried downloading the Hebrew language pack and then setting alt-shift as my layout-change shortcut in the Options section of "Keyboard Layout". However, when ...
58
votes
3answers
167k views

How can I copy the contents of a folder to another folder in a different directory using terminal?

I am trying to copy the contents of a folder to another folder in a different directory using terminal. Would somebody be able to provide me an example of the command line syntax required to achieve ...
66
votes
10answers
104k views

network manager says “device not managed”

I used to be able to share my network connection by editing the Auto Eth0 to share with other computers in the Ipv4 section and now I upgraded my laptop to 11.10 . Now are there no wired connections ...
24
votes
4answers
212k views

How to make read-only file system writable?

I am not sure since when the filesystem on my digital audio player has been changed to be read-only. I cannot copy files into it or remove files on it. Are there some possible reasons for the ...
41
votes
16answers
104k views

Blank screen after installing nvidia restricted driver

I've installed the current nvidia restricted driver and rebooted my machine and now I get a black or blank screen. How can I fix this?
265
16
votes
3answers
45k views

Flash player not working in 14.04 LTS

Clean install of 14.04 LTS. Single OS. Have installed Chrome for linux, updated, removed, reinstalled 14.04 LTS. No flash. I have done everything from every site I can find, nothing. Using Chrome I ...
14
votes
5answers
95k views

Install Skype on Ubuntu 12.04 LTS 64-bit

Since weeks ago I'm trying to install Skype on my computer. I imagined it would be a straight forward task but it is becoming a nightmare. What I have tried so far: Installing from command line with ...
136
votes
2answers
169k views

How do I install latest PHP in supported Ubuntu versions (like 5.4.x in Ubuntu 12.04)?

I am trying to update to php 5.4 in Ubuntu 12.04, and I can only get 5.3.6 using official repositories (using apt-get). I'm not really sure how to do a manual update – I'm sorta new to ubuntu, but I ...
162
85
votes
5answers
110k views

How do I install LibreOffice 4?

I want to download and install LibreOffice 4. How can I do this?
29
votes
6answers
96k views

How to run an Android emulator in Ubuntu 13.04

Is there any way of doing this in 13.04? If so, can you also provide a step-by-step instruction on how to do it ?
36
votes
13answers
105k views

“Failed to spawn mysql main process: unable to execute: No such file or directory”

I'm a newbie on MySQL ground so bear with me. I've just finished upgrading 11.10 to 12.04. Everything seemed to work without any hiccups and all my software and settings are working fine. Apart from ...
50
votes
4answers
63k views

Requires installation of untrusted packages?

I tried installing VLC Player yesterday, and I got the Requires installation of untrusted packages error. I searched for hours for a solution to this problem, and finally came upon a suggestion that ...
122
votes
2answers
190k views

How to extract files to another directory using 'tar' command?

I think tar archive.tar /users/mylocation will work. But it doesn't. How can I do that?
182
132
votes
11answers
320k views

How do I install and use the latest version of GNOME?

I followed the instructions for compiling GNOME Shell and it did compile with a few errors here and there but it didn't run. I installed GNOME Shell using sudo apt-get install gnome-shell but I got ...
40
votes
5answers
89k views

How to uninstall LibreOffice?

Which package should I remove to completely remove libreoffice? I have no need for office tools. That's the one gripe I have with package managers like apt, there's no simple way to perform the ...
105
votes
9answers
146k views

How can I repair grub? (How to get Ubuntu back after installing Windows?)

I installed Windows 7, which ate Ubuntu's boot file. When starting up the computer, it now goes straight to Windows, without giving me the option of booting Ubuntu. How can I get Ubuntu back?
20
votes
4answers
53k views

How to successfully restart a network without reboot over SSH?

In Ubuntu 14.04 neither sudo service networking restart nor sudo /etc/init.d/networking restart do anything any more. They also both exit with code 1. Something has obviously changed (or half changed) ...
66
votes
6answers
138k views

What happened to the ia32-libs package?

The ia32-libs package is no longer present in Ubuntu 12.04 repositories for a 64bit system. Are there any available replacement packages available for download?
191
57
votes
11answers
141k views

How do I include lines in resolv.conf that won't get lost on reboot?

I have finally migrated to 12.04 from 7.10. I have one last part to complete but I am stumped. I am using Puppet on each server, and in the past I have included a nameserver address and a search ...
32
votes
4answers
77k views

How to get a drive formatted with exfat working?

In Ubuntu 13.04 there was an option to use the PPA by Relan in order to get ExFat functionality. Seeing that in Ubuntu this functionality is now available from the repositories without the PPA I tried ...
38
votes
6answers
138k views

Installing Chrome Java Plugin

I've been trying to install the Java plugin for Chrome for a couple hours now, and I figured it was time to ask people with more experience. I can't seem to get it working. My current Java version is ...
73
votes
3answers
67k views

How do I deal with “unauthenticated sources” errors in the Software Center?

Any install that I'm trying through the Software Center is telling me: Requires installation of untrusted packages: The action would require the installation of packages from not authenticated ...
35
votes
13answers
66k views

List all MAC addresses and their associated IPs in my local network(LAN)

How can I list all MAC addresses and their associated IPs of the machines connected to my local network(LAN)? Any suggestions?
28
votes
6answers
158k views

Where is .bashrc?

I feel stupid asking, but I can't seem to find the answer to this anywhere. I'm trying to follow these instructions to edit my bash prompt, but there is no .bashrc in either my user directory ...
32
votes
3answers
223k views

How to restart samba server?

Sorry this is a little embarassing but I'm trying to set up my own server for the first time. I found great tutorial online. http://www.intac.net/build-your-own-server/ I'm stuck at the 2nd to last ...
109
12
votes
3answers
142k views

What is the default root password?

I installed Ubuntu 12.04 LTS (Precise Pangolin), 64 bit. Nowhere was I asked to set password for root. I just installed AccuRev SCM software. It was installed under the /root folder by default. Now I ...
134
54
votes
10answers
180k views

How to format a USB flash drive?

In Windows there is a straightforward "Format" option in a flash drive's right-click pop-up menu. Where's that in Ubuntu? I understand there's always standard partition management command line stuff ...
11
votes
5answers
47k views

An easy way to create a desktop shortcut?

I wonder, isn't there still an easy way to create a desktop shortcut in Ubuntu 14.04 (or Unity)? There is no context menu on desktop doing this. So I tried the following: I looked for an app I want ...
114
votes
2answers
74k views

How to add “Open terminal here” to Nautilus' context menu?

I am working on Ubuntu 12.04 64bit. I want to add "Open terminal here" to Nautilus context or right-click menu but it tries to download 32bit version from Internet.
78
votes
12answers
96k views

How to modify a invalid /etc/sudoers file? It throws out an error and not allowing me to edit again

How do I edit an invalid visudo file? Here is what happens: $ sudo visudo >>> /etc/sudoers: syntax error near line 28 <<< sudo: parse error in /etc/sudoers near line 28 sudo: no ...
235
55
votes
6answers
198k views

Where is the X.org config file? How do I configure X there?

As Ubuntu 10.10 seems to neither detect my graphics card (Intel 82852/855GM) automatically nor use the corresponding Intel driver even after manually installing it, I am looking into manually ...
31
votes
1answer
103k views

How can I install GTK themes on Ubuntu?

How can I install themes in ubuntu 12.10 ? For example, how can I install the following themes on ubuntu: GrayDay Elegant+Eggplant
173
4
votes
6answers
77k views

Installing Skype in Ubuntu 13.10

When upgrading Ubuntu 13.04 to Ubuntu 13.10 (64 bit), the upgrade tool insisted on removing Skype. I'm now trying to get Skype reinstalled. When trying from the software center (as suggested by why ...
25
votes
10answers
59k views

How to remove the “AMD Testing use only” watermark?

I've installed the latest catalyst driver (beta) following the step in this guide for Ubuntu Quantal Quetzal. My system is 64 bit and my graphic card is an ATI RadeonHD 6670, this g.c. is Officially ...
240
60
votes
3answers
191k views

What command do I need to unzip/extract a .tar.gz file?

I received a huge .tar.gz file from a client that contains about 800 mb of image files (when uncompressed.) Our hosting company's ftp is seriously slow, so extracting all the files locally and sending ...
60
votes
2answers
163k views

How do I set the grub timeout and the grub default boot entry?

In Ubuntu 12.04, how do I set the GRUB time and the default OS (that I see at boot time) as I'm dual-booting Windows 7 and Ubuntu 12.04?
122
23
votes
2answers
120k views

How can I uninstall a nvidia driver completely ?

As expected, Nvidia drivers have reduced my customizations. I can't login to Unity 3D session. I can't find any content to help me to uninstall the driver and I don't know what to do as I have never ...
53
votes
5answers
91k views

How do I get AMD/Intel Hybrid Graphics drivers to work?

On Ubuntu 12.04 my Sony Vaio VPCSE with Intel® HD Graphics 3000 and AMD Radeon™ HD 6630M worked fine with the Catalyst Control Center version 12.6. Also the switching between integrated and discrete ...
94
votes
14answers
201k views

How to send mail from the command line?

How to send mail from the command line?
84
votes
10answers
100k views

Error message when I run sudo: unable to resolve host (none)

I have this issue on AWS on some servers. Whenever I run sudo the terminal is stuck doing seemingly nothing, until it finally spits out this error message. My terminal looks like this: ...
31
votes
16answers
93k views

Shut down computer from keyboard

Is there a keyboard shortcut available to shutdown the computer? I know I can use the Power button, but I would like to be able to it from the keyboard. If such a shortcut does not exist already, ...
164
votes
36answers
127k views

What lenses for Unity are available?

This question is present as a matter of historical interest. While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on ...
56
votes
4answers
74k views

How can I get my graphics card to be recognized in System Info?

I am new to Linux/Ubuntu. I installed Ubuntu 11.10 on my Lenovo IdeaPad y510. System info says Graphics: unknown. Driver: unknown, Experience: Standard. What should I do to use all my ...
19
votes
4answers
150k views

How do I enable Remote Desktop connection on Xubuntu 11.10?

How do I enable Remote Desktop connection on Xubuntu 11.10? I do not find any options such as those present in Ubuntu?
10
votes
6answers
39k views

Trying to install Steam ERROR: You are missing the following 32-bit libraries, and Steam may not run: not

I've ALready installed Steam But when i click on the program i get this message ERROR- You are missing the following 32-bit libraries, and Steam may not run: not I dont know what to install or EVEN ...