368
votes
8answers
310k views

How to enable hibernation?

In Ubuntu 12.04 and newer, hibernation has been disabled by default in policykit. How can I enable this back?
129
votes
17answers
218k views

How can I create launchers on my desktop?

In older versions it was easy to create a launcher on my desktop all i had to do is right click on my desktop and select the create launcher option. But on 11.10 the option disappeared from the menu.. ...
146
votes
4answers
106k views

Why is “No new release found” when upgrading from a LTS to the next?

I'm following the upgrade instructions on Ubuntu's website, but on launching the upgrade tool I get this response: Checking for a new ubuntu release No new release found Am I doing something wrong? ...
59
votes
4answers
272k 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.
64
votes
5answers
134k views

How to set up USB for Virtualbox?

I'm using Ubuntu Maverick and Virtual Box 3+. I have Windows 7 Ultimate. The problem is that it doesn't detect USB drives in Windows 7, but USB peripherals (mouse + keybord) are working. I followed ...
43
votes
3answers
136k views

How to install Ubuntu on VirtualBox?

I would like to know if anyone can help me with installing Ubuntu on VirtualBox 4.1.12. I'm really having trouble installing ubuntu on there. I am a first time user but always wanted to give it a try, ...
22
votes
3answers
26k views

How do I fix this “E:Type '*' is not known on line * in source list …” update error?

Every once in a while I see users having issues to update due to errors like this: E:Type 'ain' is not known on line 1 in source list /etc/apt/sources.list.d/some-ppa.list' with varying types/line ...
13
votes
8answers
17k views

Failed to download repository information due to missing CDROM

When updating I got this error message: W:Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-i386/Packages Please use apt-cdrom to make this ...
139
votes
46answers
201k views

What Custom Launchers and Unity Quicklists are available?

Please note that right now, most of the information contained below is outdated and cannot be updated. Be careful, most of this won't work on Ubuntu 12.04 and newer. Creating a custom launcher for ...
108
votes
4answers
240k 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 the same as ad hoc networks. There is significant difference between the two. In short, ad hoc networks ...
41
votes
2answers
143k views

How do I set 'nomodeset' after I've already installed Ubuntu?

I know that editing the boot options line and adding 'nomodeset' solves my laptops problem during LiveCD mode, what I don't know is how to set it at boot up through Grub2 after I've installed Ubuntu. ...
59
votes
3answers
177k views

How do I restore the default repositories?

There are now errors when updating and I cannot install most software due to a corrupted /etc/apt/sources.list file. Is there a copy I can download to replace it? The file would be for Ubuntu 12....
78
votes
7answers
65k views

How can I play encrypted DVD movies?

My machine can't play encrypted DVDs on a fresh install. How do I add this capability? Another useful bit of information would be what programs are best for playing DVDs, once I'm able to do so. ...
39
votes
4answers
77k views

Is my ATI graphics card supported in Ubuntu?

I have an ATI graphics card and I want to know if it is supported and what kind of drivers should I be running to get the best features out of it. Is my card supported in Ubuntu and what drivers will ...
62
votes
2answers
11k views

Why should users never use normal sudo to start graphical applications?

I've read the comunity "RootSudo" documentation and am interested in this line: You should never use normal sudo to start graphical applications as Root. Why? What is the difference? Please ...
8
votes
1answer
9k views

Bluetooth Broadcom 43142 isn't working on ubuntu

Please help me! I'm new and can't to do anything... I was trying somethings from my searched but it still don't work. It's on but can't search any devices and can't searched from any too. Just tell ...
37
votes
10answers
34k views

How do I install Skype?

I want to install Skype, but I can't locate it in Software Center or by using Synaptic Package Manager. Can anyone help me?
27
votes
7answers
62k views

Windows 8 removes Grub as default boot manager

I have a Sony VAIO S series with Windows 8 preinstalled, and I installed Ubuntu 12.10 on a new partition. When the PC boots Grub is display, and I can choose between Windows 8 (didn't worked at the ...
27
votes
5answers
247k views

Windows installer for Ubuntu 14.04 LTS onwards

Is there any windows installer(wubi) for Ubuntu 14.04 LTS? When I mount .iso file with daemon tools and run wibu.exe it just ask me if I want to reboot(I think it's usefull only when .iso burned on ...
17
votes
6answers
99k views

Permission denied, are you root?

I get this error whenever I try to install programs using the terminal: home@ubuntu:~$ apt-get install myunity E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied) E: Unable ...
848
votes
18answers
1.3m 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 would I do this?
83
votes
4answers
302k views

Difference between the i386 download and the amd64?

What is the difference between standard i386 download and the amd64 download of Ubuntu 11.04? I am currently running the i386 on an amd machine, would my system work better with the amd64 download ...
20
votes
1answer
69k views

How do I remove “Ubuntu” in the bios boot menu? (UEFI)

See this ubuntu appears in BIOS menu I have this on my Lenovo s205 too. Is there some way to remove "ubuntu" from the menu? I don't even have it installed anymore.
12
votes
3answers
39k views

How do I install the VirtualBox version from Oracle to install an Extension Pack?

I downloaded VirtualBox OSE from the Ubuntu Software Center but it seems that that version is limited. I prefer to have the complete version and don't really care if it's closed source or not. Can I ...
143
votes
6answers
57k views

How to understand the Ubuntu file system layout?

In Windows there’re perhaps only a couple of important folders (by important I mean important in my logical picture of the Windows file system) in the installation drive (in my case C:\). Namely ...
75
votes
7answers
49k 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 ...
188
votes
5answers
167k 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 ...
34
votes
4answers
59k views

Graphics issues after installing Ubuntu 16.04 with NVIDIA graphics

I installed or upgraded to Ubuntu 16.04, but I'm having some problems with my graphics card. The display is blank The display flickers Items on the screen do not display correctly Certain programs ...
44
votes
1answer
84k views

How do I boot into a root shell?

When booting to the graphical desktop fails we sometimes are recommended to boot into a "root shell" or to boot in "recovery mode". How do I do that?
509
votes
7answers
611k views

How to enable or disable services?

I read about how to enable and disable services in Ubuntu and it seems that there are different possibilities to manage them. The first method I found is update-rc.d to add new services to startup, ...
85
votes
7answers
34k views

No more updates for Google Chrome | apt-get update error

I am using Google Chrome 48.0 32-bit. Today when I launched Google Chrome, I got this message: This computer will soon stop receiving Google Chrome updates because this Linux system will no longer ...
32
votes
9answers
141k views

How do I get permissions to edit system configuration files?

I can't seem to edit and save config files in the root system (eg: /etc/dhcp/dhcpd.config); it just says "permission denied" or the save option is blocked in the text editor. I'm pretty sure I'm a ...
26
votes
6answers
13k 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 ...
101
votes
7answers
187k views

Whats the simplest way to edit and add files to “/var/www”?

Having installed the web server is there a simple way to set a user able to use the graphic interface to copy files and directories to the local web server /var/www I gave myself administrative ...
21
votes
4answers
94k views

How do I reset a lost password (using recovery mode requires me to type the password)?

I need to reset my password. I have followed these steps: How do I reset a lost Administrative (root) password? However, then I go to "root" or "netroot" recovery options, it tells me: Give root ...
56
votes
5answers
111k 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 ...
77
votes
8answers
37k views

What is the difference between “gksudo nautilus” and “sudo nautilus”?

I've been using gksudo nautilus and sudo nautilus through Alt+F2. What's the difference? They look very similar!
6
votes
4answers
19k views

How to create a bootable USB stick?

I am looking at this: http://www.ubuntu.com/download/help/create-a-usb-stick-on-ubuntu I need to create a boot disk to test Ubuntu to make sure it will run on a PC (Compaq Mini CQ10-120LA) I was ...
133
votes
14answers
192k views

How do I disable X at boot time so that the system boots in text mode?

Is it possible to disable X at boot time? I'm setting up a server so it would be nice if it wouldn't load the graphical interface every time I boot.
72
votes
16answers
191k 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?
64
votes
4answers
87k 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 ...
103
votes
5answers
254k views

Unable to correct problems, you have held broken packages

After upgrading from 10.04 to 12.04 I am trying to install different packages. For instance ia32-libs and skype (4.0). When trying to install these, I am getting the 'Unable to correct problems, you ...
71
votes
7answers
169k views

How do I reset GNOME to the defaults?

I was playing around with some settings, and now I need to reset GNOME to it's defaults - how do I do that?
69
votes
5answers
418k views

How to enable root login?

I would like to enable the root account on my Ubuntu installation. I realize the security implications of this.
40
votes
5answers
316k views

“Unable to locate package” while trying to install packages by apt

When I try to install any package through the command line, I get an error. Can anyone help me on this? $ sudo apt-get install <package> Reading package lists... Done Building dependency tree ...
155
votes
6answers
1.2m views

How to install Google Chrome?

How do you install Google Chrome on Ubuntu?
73
votes
8answers
241k views

How to update kernel to the latest mainline version without any Distro-upgrade?

Currently I'm running Linux-3.0 and I want to update it to Linux-3.3.1 the latest stable kernel release as mentioned at http://www.kernel.org. Can I update to 3.3.1 in Ubuntu without any risk of ...
34
votes
4answers
138k views

How do I remove the proprietary ATI drivers?

I've installed 11.10 and the proprietary ATI drivers using "additional drivers" The performance of my system is absolutely awful and it shouldn't be. I tried to remove the proprietary drivers using ...
37
votes
2answers
11k views

How do I go about porting Ubuntu Touch to different devices?

I would like to port Ubuntu Touch to a device that is currently not supported. What are the requirements for doing this and where do I begin?
37
votes
4answers
176k views

Grub rescue - error: unknown filesystem

I have a multiboot system set up. The system has three drives. Multiboot is configured with Windows XP, Windows 7, and Ubuntu - all on the first drive. I had a lot of unpartitioned space left on the ...

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