22
votes
8answers
63k views

How do I repartition with GParted? [duplicate]

I wanted to create more space for Ubuntu on my hard disk in favor of my Windows partition. I booted the livecd and resized the NTFS partition to 100 GB. Then I wanted to resize my Ubuntu (ext4) ...
68
votes
5answers
230k views

How to manage users and groups?

Just switched from 10.04 to 11.10. I'm wondering about the limited options in the GUI for managing users and groups. Where is the old GUI to change groups, id's, etc. I know that I can do this from ...
39
votes
5answers
12k views

Last upgrade crashes network manager (no internet connection, no applet)

While upgrading today, something caused my wireless network manager to disappear. Not even connecting via wired connection. This error is being shown by files: **(nm-applet:2716): WARNING **: Could ...
41
votes
4answers
65k views

How to restore a system after accidentally removing all kernels?

I was trying to delete old kernels, but I must have deleted all of the kernels on my Ubuntu 11.04 laptop. Is there any way to fix this via USB boot or mounting hard drive on another system?
23
votes
2answers
152k views

How do I enable hardware virtualization technology (VT-x) for use in Virtualbox?

So I am trying to run Ubuntu in a virtualbox but on installing 12.10 from the .iso I was greeted by a warning telling me that audio wouldn't work then I pressed next and this popped up: Failed to ...
241
votes
5answers
352k views

How do I set up a Cron job?

I want to schedule a task to run on a regular basis and have heard that Cron is the way to do this. How do I add Cron jobs in Ubuntu?
59
votes
10answers
390k views

How do I run .sh files?

Whenever I open a .sh file, it opens it in gedit instead of the terminal. I can't find any option similar to Right Click → Open With → Other Application... → Terminal. How do I open this file in the ...
77
votes
9answers
138k views

How can you remove Unity?

In previous versions of Netbook Remix I was able to disable the netbook-launcher and just have a blank desktop. I liked the speed of the Netbook version but not the interface, this worked well for ...
105
votes
6answers
97k views

How can I configure Unity's launcher auto-hide behavior?

This has been an issue for me with Unity since its release. I'd like to make the the launcher auto-hide. Especially on Netbooks, where screens are small, the launcher is quite wide, making it ...
34
votes
9answers
117k views

'apt-get' does not work with Proxy

For the command sudo apt-get update I get following error: W: Failed to fetch http://ch.archive.ubuntu.com/ubuntu/dists/maverick-updates/multiverse/binary-i386/Packages.gz 407 Proxy ...
22
votes
2answers
2k views

How do I install software using the Ubuntu Software Center?

The title says it all. I'd like to know how I can install software - an example is the Chromium web browser.
183
votes
7answers
384k 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 ...
151
votes
2answers
171k views

How to enable TRIM?

I know that the Linux kernel supports TRIM as of version 2.6.33, so there should be TRIM support in ubuntu. Is TRIM enabled by default or do I need to change some settings or install additional ...
18
votes
4answers
10k views

What if I accidentally run command “chmod -R” on system directories (/, /etc, …)

I accidently ran sudo chmod 755 -R / instead of sudo chmod 755 -R ./ I stopped it after few seconds, but now there is some problems such as sudo: must be setuid root How can I revert ...
42
votes
5answers
79k views

How do I install Ubuntu-Tweak?

I have heard a lot about Ubuntu-Tweak and how it is great for power users, but I don't know how to install it. How do I do that?
240
votes
20answers
92k views

How to create a screencast?

How can I create a screencast on Ubuntu? The app I'm looking for has ideally all of these features: Can record in a format that can be played back easily on any platform and/or accepted by youtube ...
88
votes
6answers
190k 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?
58
votes
14answers
52k views

How do I change the wallpaper of the login screen?

I would like to set the wallpaper in the login screen (Unity Greeter), how do I do that?
44
votes
17answers
26k views

What is the difference between Ubuntu and its derivatives?

What different Ubuntu derivatives are there? And what is special with them?
26
votes
10answers
50k views

How to read ext4 partitions in Windows? [closed]

I have two questions on ext4: Is there currently a way to mount an ext4 partition in Windows (XP/Vista/7) to get basic read support? If not, are there any plans to support this someday?
28
votes
6answers
358k views

Fixing GRUB error: “error: unknown filesystem” [duplicate]

When booting into Ubuntu, I'm getting the following error with a grub rescue shell following it: Error: unknown filesystem. grub rescue> I'm not exactly sure what I did. I believe I installed ...
115
votes
7answers
172k views

How do I change my username?

Some time ago when I installed Ubuntu I chose a rather stupid username for my account that I do not want to use anymore. How do I change this (including the name of my home directory, and the name ...
78
votes
7answers
6k views

How to get my software into Ubuntu?

As a developer of free software, I want to get my application into Ubuntu. Should I provide a source tarball and ask for packaging? Or should I create a package myself? Should I target Ubuntu ...
49
votes
3answers
209k 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 ...
44
votes
7answers
51k views

Dash search gives no result

I just upgraded my Ubuntu 11.10 (x86) to Ubuntu 12.04 (x86). The upgrade completed without any errors. Since then, I am unable to access any of the applications in the Dash. The Dash seems to be ...
505
votes
6answers
1.3m views

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

How do I install a .deb file via the command line?
131
votes
12answers
105k 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!
68
votes
6answers
94k views

How do I add a swap partition after system installation?

I did not opt for a swap partition during Ubuntu installation. Later I freed up some space, and made a swap partition. Now after booting up I am manually opening gparted and right-clicking the swap ...
52
votes
3answers
86k views

How do I add a kernel boot parameter?

I need to add the boot parameter foo=bar to my kernel. How can I do this once for testing, and permanently if testing was a success?
25
votes
3answers
102k views

Can I install Ubuntu inside Windows?

Ubuntu 12.04 won't come with the Windows Installer (Wubi) pre-added. But is there any way to install 12.04 using Wubi?
145
votes
18answers
117k views

I have 16GB RAM. Do I need 32GB swap?

I read many places that the rule of thumb for swap space is to double the amount of physical RAM. However, 32 GB does seem a LOT. Do I need that much? Do I need it at all with this high amount of ...
101
votes
20answers
94k views

Brightness is reset to Maximum on every Restart

The brightness of my laptop is reset to Max on every restart. I tried the solution provided at this website but had no luck. ...
114
votes
7answers
63k views

How do I enable or disable the global application menu?

I'm fairly excited for Unity, as it looks like a promising new direction for Ubuntu. However, I do have a concern - will it be possible to use Unity without the global menu? I have my window manager ...
157
votes
6answers
68k views

How do I find the package that provides a file?

Simple enough question: is there some shell command (or GUI method) I can use that, given the path to a file on my system, tells me what package put it there? Assuming the file did in fact come from a ...
55
votes
6answers
114k views

Getting MTP enabled devices to work with Ubuntu?

Since Ubuntu 13.04 storage access to external devices via MTP is supposed to work out of the box via a GVFS-MTP module. While this question is about the Galaxy Nexus, other Android devices as ...
59
votes
6answers
168k views

How do I change the default session for when using auto-logins?

When autologon is active, lightdm will start the Unity 3D session, not the 2D (or any other shell that I want to auto-login to). Is there a way to start the shell I want automatically (autologon)? ...
28
votes
9answers
28k views

How do I configure the launcher to “dodge windows”?

I don't like the auto hide launcher for it is too annoying for me. The launcher stays hidden and to reveal it, the mouse pointer has to be moved to the default hot spot. I'd instead like to have the ...
18
votes
3answers
15k views

dpkg error: “trying to overwrite file, which is also in…”

For example: $ sudo apt-get install curl Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The ...
155
votes
5answers
114k views

How do I enable or disable Apport?

The system crash dialog is annoying me, how can I turn it off? I'd also like to know how to turn it back on just in case I need it to report a problem.
65
votes
5answers
124k views

Running programs in the background from terminal

How do I run a program in the background of a shell, with the ability to close the shell while leaving the program running? Lets say my UI is having problems or for some reason, I need to boot up a ...
36
votes
6answers
102k views

Wireless card Realtek RTL8723AE-BT is not recognized

I bought a new laptop with a RTL8723AE-BT wireless card, but it seems there is nothing that makes it work. Realtek usually makes drivers available for its card, but this specific one doesn't have a ...
25
votes
5answers
87k views

How do you repair an “input/output error” in an NTFS partition?

I replaced a buggy Windows Vista installation with Ubuntu. All works fine except that the main HD where I had all my files are now inaccessible. Here is the error message I get: Error mounting: ...
17
votes
0answers
14k views

How do I resize my current ubuntu partition? [duplicate]

I've got Ubuntu 10.10 installed to use my whole hard-disk, but would like to use the 130GB of free space I've got to create a new partition and do some development on Unity and Natty. Can I use ...
122
votes
13answers
98k views

How do I optimize the OS for SSDs?

What steps should be taken before/during/after installation of Ubuntu on a Solid State Drive to optimize performance and ensure maximum durability of the drive?
173
votes
4answers
157k views

What is “dist-upgrade” and why does it upgrade more than “upgrade”?

I was wondering why upgrade sometimes doesn't want to upgrade certain parts of the system, while dist-upgrade does. Here's an example after running update: apt-get upgrade: ...
119
votes
12answers
139k views

How can I set up password-less SSH login?

I want to be able to login to a remote via ssh without having to enter the password all the time. How do I set it up? Is a different command required to execute a password-less session?
82
votes
10answers
152k views

What is the equivalent to the Windows “Program Files” folder? (Where do things go when I install them?)

What is the Ubuntu equivalent to the Windows C:\Program Files folder? This is where Windows stores the system wide data for applications.
128
votes
8answers
229k views

How do I create a permanent Bash alias?

I would like to create an alias to rm command in order to have a confirmation message after executing this command. So I am creating an alias like this alias rm='rm -i'. But as far as I know this is a ...
69
votes
7answers
74k views

My /boot partition hit 100% and now I can't upgrade. Can't remove old kernels to make room

My first issue was when i tried to apt-get update/upgrade. On upgrade I get the following error: You might want to run 'apt-get -f install' to correct these. The following packages have unmet ...
39
votes
4answers
46k views

Is there a program to mount all of my drives automatically?

Sometimes when I restart my computer, my drives will mount but sometimes they won't (like right now when I'm typing this question out). Is there an easy way, like a program that can mount them for ...

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