Greatest Hits

28
votes
2answers
141k 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 ...
118
votes
10answers
96k views

How do you monitor the progress of dd?

dd is a wonder allowing you to duplicate a hard drive to another, completely zero a hard drive, etc. But once you launch a dd command, there's nothing to tell you of it's progress. It just sits there ...
86
votes
6answers
118k views

How do I install LibreOffice 4?

I want to download and install LibreOffice 4. How can I do this?
65
votes
16answers
170k views

How do I install Adobe Flash player?

I have had significant problems with watching flash video in 64-bit Ubuntu. Does anyone know of a good way to get flash running on the platform?
60
votes
11answers
176k views

How do I mount shared folders in Ubuntu using VMware tools?

Experts. I've successfully installed VMware tools for Ubuntu. Everything seems to work fine, but shared folders were not mounted automatically. How do I get them to work? If I run vmware-hgfsclient ...
35
votes
18answers
104k 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, ...
137
votes
11answers
327k 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 ...
20
votes
1answer
129k views

How do I configure my DNS settings in Ubuntu server?

According to this page it appears to be simple. However, /etc/bind does not exist on the default installation of Ubuntu 12.04.3 LTS server. So, without installing any further software, how can ...
15
votes
5answers
100k 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 ...
58
votes
6answers
216k 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 ...
42
votes
1answer
69k views

How do I get Java plugin working on Google Chrome?

Google has updated its Chrome browser to version 35. This new version uses Aura in place of GTK2 and no longer supports NPAPI plugins like Java (both OpenJDK and Oracle). PPAPI plugins like ...
32
votes
7answers
86k views

How do I delete the entire history (Recently Used Items) in the dash?

I want to delete all the history of the unity dash about files, videos, text files, images, etc. I find it surprising that the best thing that activity log manager can do is to delete the history of ...
50
votes
9answers
113k views

How to fix missing GPG keys?

I have just installed Ubuntu 12.04 and I added some repo and when apt-get update i got missing gpg key. Following command seems to doesn't work for me: apt-get update 2> /tmp/keymissing; for key ...
18
votes
1answer
70k views

How to get gnome shell 3.12 on ubuntu 14.04

I know there is a distro for ubuntu dedicated to gnome and I know ubuntu 14.04 comes with gnome 3.10. But I am wondering what the steps are to: Install the ppas for gnome 3.12 install gnome 3.12 ...
78
242
votes
37answers
166k views

How can I improve Ubuntu overall system performance?

What are your tips for improving overall system performance on ubuntu? Inspired by this question I realized that some default settings may be rather conservative on Ubuntu and that it's possible to ...
37
votes
10answers
80k views

How do I add minimize / maximize buttons to GNOME shell windows?

Just installed Ubuntu 12.04, then I did sudo apt-get install gnome-shell and windows have only a close button, how can I enable minimize / maximize? The old gconf-editor doesn't seem to work cause ...
31
votes
1answer
113k 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
182
75
votes
9answers
94k views

How do I fix the GPG error “NO_PUBKEY”?

I added some extra repositories with the Software Sources program. But when I reload the package database, I get an error like the following: GPG error [...] NO_PUBKEY [...] I know I can fix ...
270
32
votes
6answers
65k views

Chromium 34 and later cannot detect flash plugin

I've deleted ~/.macromedia and ~/.adobe contents and after a restart chromium can't detect flash plugin. It works just fine in Firefox I have only Chromoting Viewer on chrome://plugins/ ...
114
votes
12answers
215k views

How can you log out via the terminal?

Is there a command, that will take you back to the login screen?
18
votes
4answers
63k views

How to set up nVidia Optimus/Bumblebee in 14.04

The previous methods i have used to set up Bumblebee on 13.10 based distributions is not working under Ubuntu 14.04 . How can I set up Bumblebee and Bumblebee GUI in Ubuntu 14.04 ?
12
votes
6answers
44k 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 ...
91
votes
6answers
163k views

What is the correct way to completely remove an application?

I've searched the net for such information and found different command lines, like these ones: sudo apt-get remove application sudo apt-get remove application* sudo apt-get remove --purge ...
91
votes
3answers
219k views

How to create a soft or symbolic link?

I am installing p4v in /opt, but /usr/bin is on my path. Is it possible to create a soft or symbolic link for p4v from /opt to /usr/bin, so I can just type "p4v" since /usr/bin is in my path?
5
votes
8answers
47k views

Can't install Skype 4.3 on Ubuntu 14.04 64 bit

First of all, I think this question is not duplicated, because I have tried all other solutions I found here, but nothing solved my problem. I use Ubuntu 14.04 64 bit. I have tried until now: sudo ...
64
votes
10answers
108k views

Unable to mount Windows (NTFS) filesystem due to hibernation

Whenever I boot Ubuntu, I get a message that it cannot mount my windows partition, and I can choose to either wait, skip or manually mount. When I try to enter my Windows partition through Nautilus I ...
35
votes
3answers
33k views

Missing System Settings after removing some packages

I installed or uninstalled some packages. I do not even remember what I was doing. As a result, now I can't see most of the system settings in settings window. Any idea how to solve this problem. ...
11
votes
6answers
57k views

likewise-open | 14.04 | other easy way to connect AD?

we use a lot of Linux-Servers with active-directory membership for user-authentication. This are made with the likewise-open packet. We tested the beta-Version of ubuntu Server 14.04 LTS. Everything ...
151
votes
5answers
205k views

How do I set up a Cron job?

How do I add Cron jobs in Ubuntu?
184
50
votes
4answers
178k views

How to access a usb flash drive from the terminal? (How can I mount a flash drive manually?)

I only have access to the command line I need to backup my data (on the user folder) to a pen. I don't know where/how can I do this is order to access the pen, and then do the cp command. How can ...
114
votes
21answers
85k views

How can I deactivate Bluetooth on system startup?

How can I deactivate Bluetooth on system startup?
53
votes
5answers
97k 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 ...
25
votes
4answers
187k views

mount: you must specify the filesystem type

I want to mount a partition to an auxiliary folder via mount to fix a damaged grub. I used the command. sudo mount /dev/sdb2 /home/ubuntu/temp and got as error: mount: you must specify the ...
106
122
votes
12answers
99k views

How to keep processes running after ending ssh session?

Let's say I launch a bunch of processes from a ssh session. Is it possible to terminate the ssh session while keeping those processes running on the remote machine?
255
20
votes
4answers
158k 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?
72
votes
6answers
146k views

How do I find the kernel version, Ubuntu release and disk partition information from the terminal?

Which commands will give me information about following? Kernel Version Distribution version no. All partition size of the HDD in Terminal
74
votes
5answers
163k views

How to check hard disk performance

How to check the performance of a hard drive (Either via terminal or GUI). The write speed. The read speed. Cache size and speed. Random speed.
95
votes
1answer
175k views

How do I configure swappiness?

I need Step by Step, simple and easy way to configure swappiness.
138
73
votes
3answers
146k views

How to setup an Access Point mode Wi-Fi Hotspot?

How to setup an Access Point mode Wi-Fi Hotspot? Point to be noted: Wireless hotspots aren't same as ad hoc networks. Significant difference is there. In short, ad hoc networks aren't ...
141
votes
12answers
113k views

How do I reset my Unity configuration?

I've been messing around with Unity and broke something, how do I "start over"?
238
167
votes
36answers
131k 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 ...
8
votes
4answers
135k views

Apt-Get Update: failure to fetch; can't connect to any sources

I realize there are dozens of "apt-get update: failure to fetch" questions (I read through all I could find), but my present circumstance is unique to 12.04 and it affects all sources; not just ...
25
votes
10answers
60k 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 ...
241
41
votes
8answers
59k views

How to change LCD brightness from command line (or via script)?

To work around bug #1005495 (changing LCD brightness via hotkeys impossible), I'd like to have one command line query for increasing and one for reducing the brightness of my LCD. I could then map a ...
32
votes
4answers
126k views

How do I uninstall Mysql?

I installed Mysql using sudo apt-get. Now I need to remove it from my system. How can I do that?
22
votes
6answers
133k views

How to fix “sudo: unable to open … Read-only file system”?

The title might not be as descriptive as I would like it to be but couldn't come up with a better one. My server's file system went into Read-only. And I don't understand why it does so and how to ...
57
votes
4answers
77k 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 ...
15
votes
4answers
92k views

unzip error “End-of-central-directory signature not found”

I try to unzip a zip file, but got an error: $ unzip COCR2_100.zip Archive: COCR2_100.zip End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one ...
238
103
votes
12answers
86k views

How do I disable the guest session?

How do I disable the guest session in Ubuntu 11.10 or higher? I don't want people to be able to use my computer without using a password to log in!
54
votes
5answers
115k views

How to run BitTorrent Sync?

I am in Ubuntu 12.04 (precise) 64bit and downloaded the btsync executable from http://labs.bittorrent.com/experiments/sync/ but running it doesn't seem to have any effect. Double-clicking the ...