Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Only use this tag if your question is version-specific.

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How to install Hadoop on Ubuntu 12.04 32-bit?

I want to install hadoop on my Asus laptop running Ubuntu 12.04. When I tried to format the new File system, at that time I got an error 1. $ hadoop namenode -format or 2. $ hdfs namenode ...
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28 views

Ubuntu crashing too often

right some little days, I bought a dedicated server (physically, I mean), then, installed Ubuntu 12.04 LTS. All working well (well as it can be taking in mind that it's running in a simple house, ...
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2answers
41 views

Ubuntu 14.04 seems to have failed to upgrade from 12.04

I recently attempted to update to Ubuntu 14.04 from Ubuntu 12.04. Everything seemed to work without error until it restarted. When the computer fired back up, I was greeted with the following message ...
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1answer
35 views

How to upgrade python in ubuntu 14.04 LTS?

I'm using python Please take a look at this SCREENSHOT. But it is old version. So, I've downloaded a new version of source code for Python. But it's giving an error while compilation. Please help me ...
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38 views

Using a webcam with an odroid XU3

I am new to ubuntu having to use it for a project, i have an odroid XU3 running Ubuntu 12.04 and i am having issues with getting an input from a logitech webcam. Having looked around a few forums I ...
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1answer
21 views

How do I remove nginx?

I have some problems with nginx configuration. I found the problem and I need to uninstall it. I used the commands apt-get remove nginx and apt-get purge nginx But the nginx is still ...
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3answers
471 views

libudev.so.1 not found when trying to run spotify

I am trying to run Spotify on Ubuntu 12.04. It used to work some time ago, when I tried to start it today, I got the following error: spotify: error while loading shared libraries: libudev.so.1: ...
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6 views

how to setup a dual-screen setup with a Acer travelmate 230 and a Dell e173FP on 12.04 xubuntu

I recently got a Dell e173fp monitor and I was trying to make a dual-screen setup with an acer travelmate 230 laptop and I try arandr but I get a error. XRandR failed: XRandR returned error code 1: ...
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0answers
12 views

12.04 — ruby1.8 missing dependencies

I just built a new 12.04 ubuntu box and tried to install puppet package. This failed because it could not load ruby1.8. After some fiddling around I tracked the issue down to the fact that the ...
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3 views

HEP latex package in 14.04

I want to write some particle name in latex. The standard notation for the particle does not working in my tex studio. How I add the HEP package???
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1answer
54 views

can't ping any site from my ubuntu server [closed]

I already installed Ubuntu server 12.04 in Virtual Box, and set a static IP, but I can't ping major sites such as google.com, but when I change the server to DHCP I can connect. However, I need static ...
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17 views

volume range levels on laptop

I have a dell latitude e6420 laptop. The problem is I have to raise volume up to 30% to hear something, but with windows 7, only 1% to barely hear, which is good, but with ubuntu even 100% is low ...
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Failed to load session “ubuntu” - recommends plymouth-theme-ubuntu-logo [duplicate]

Whenever I try to log into Ubuntu 12.014LTS, I get this message in my log in screen: Failed to load session "ubuntu" When trying to log in via the command-line interface and installing the ...
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2answers
62 views

Enable WiFi on Ubuntu 12.04 Lenovo Thinkpad E440

I have Lenovo Thinkpad E440. Just now I installed Ubuntu 12.04 LTS. Problem is Wifi is not enabled on this Ubuntu, only wired internet is enabled. So please help me how to enable Wifi on this ...
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1answer
78 views

Installing Ubuntu 14.04.2 LTS Issues

I am trying to instal Ubuntu 14.04.2 LTS from a USB however I am having issues. Hardware; Dell Optiplex 160GB WD HD 6GB RAM Intel core 2 duo 64 bit I had Ubuntu 12.0.4 installed until ...
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0answers
19 views

How to connect USB touch screen with Ubuntu

I want to connect USB touch screen with ubuntu 12.04 desktop. Is there any device which can be used easily in ubuntu. The word Easaily can be that it can be used without any additional device driver ...
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0answers
25 views

Catastrophic GUI breakdown and feezing

I'm experiencing catastrophic GUI breakdowns and freezing with my Ubuntu machine. It also randomly freezes but the time it takes from booting to freezing is different everytime. Observation so far ...
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1answer
26 views

How to access sda4 device/directory?

Our camera DVR is not recording anymore. The disk is full and the vendor has not been helpful in freeing up space. I am trying to figure out why the primary disk is full. I've tried accessing it ...
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1answer
30 views

Unknown file system, unable to boot from live cd

Facts are, I used to have a dual boot linux and windows 7. Tried to make grub handle bootloader, messed it up, nothing works now. I get grub rescue right from the off. No way I can boot into any ...
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1answer
44 views

Error for wireless request “Set Frequency” (8B04) :

I have setup a monitoring interface using: sudo airmon-ng start wlan0 channel 11 sudo iwconfig wlan0 IEEE 802.11bgn ESSID:"" Mode:Managed Frequency:2.437 GHz Access Point: ...
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1answer
24 views

How to hide administrator account or root in Login screen?

I used Ubuntu 12.04 and I want to only user account appear on the Login screen without guest and administrator account. My administrator account cannot view to everybody when their Login. ...
0
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1answer
27 views

custom-keybindings not found

When I tried to list the available custom keybindings using gsettings command gsettings get org.gnome.settings-daemon.plugins.media-keys custom-keybindings I got the error message saying, No such ...
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0answers
16 views

Cannot read USB device in Ubuntu 12.04

My Flash drive cannot read (without light) to my computer.
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2answers
25 views

“No root system defined” while installing ubuntu on Virtual box

i continuously get the error "No root System defined" in the last installation step and it asks for partitioning but under the condition of erasing everything on the disk !!!
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8 views

Gray dekstop after update XFCE on Xubuntu 12.04

After upgrade XFCE my desktop is totally grey and icons dissapeared. I found a solution: sudo apt-get install xfdesktop4 But : The following packages have unmet dependencies: xfdesktop4 : Depends: ...
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2answers
43 views

Unable to find Remote Desktop icon in System->Preferences

I've been using Ubuntu 12.04 for around 8 months, but I have a question that probably a "newbie" should be asking. I'm unable to find the "remote desktop" icon that is generally accessible from ...
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ELmer 7 installation in Ubuntu 12.04

I've been working with Elmer Multi-physics for a little while in Ubuntu 12.04. I've installed through the software center. I thought it would be neat to get a newer version so I followed the ...
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1answer
27 views

How to setup jenkins in a ubuntu 12.04 machine?

I have a machine in production which is running Ubuntu 12.04. I need to setup Jenkins on it. I was trying to follow this tutorial - ...
1
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1answer
54 views

Unable to Install Ubuntu alongside Windows 7 (Legacy BIOS)

I am trying to install Ubuntu 12 / 14.04 (x86 & x64) alongside Windows 7. I have a bootable USB stick and when I try to install Ubuntu there is no alongside Window` option neither the Windows ...
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1answer
43 views

How should I give access to a PHP script on a local host-only server?

I have a 14.02 LTS client and server VM connected using host-only and DHCP. Connectivity between them has been achieved and I can ping each machine from the other. I have LAMP installed and I'm ...
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0answers
26 views

Is there an ftp management tool that is not based on PHP?

I am looking for an ftp tool GUI that makes it easier for some low-tech users to add/delete FTP accounts restricted to certain folders. Currently I am doing this by hand in my vsftpd.conf but I am ...
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1answer
23 views

Is there a way to know which application is producing sound(audio output) in ubuntu, through code?

I want to write a code which detects the applications that are producing sound
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0answers
20 views

Sounds coming through my headset but not from my speakers

I did a Software Update in my Ubuntu 12.04,afterwards i found that no sound is coming through my laptop speakers but sound is still coming when i plugged in my headset.
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1answer
51 views

No ethernet connection only wifi

I'm providing some of the terminal tests I done for a Dell latitude D520 with Ubuntu 12.04. Please any help will be appreciated. PCI: lspci 02:00.0 Ethernet controller: Broadcom Corporation ...
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1answer
24 views

Sublime Text does not launch under gksudo

Sublime Text does not launch under gksudo. If I start it directly sudo subl it works, but gksudo subl fails. Also, how can I get a list of programs that can run from terminal straight away ...
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42 views

Problems in setting up OpenVZ server with Vesta Control Panel

I am trying to install VestaCP on Ubuntu 12.04 LTS. At first the installation process got terminated due to the webalizer corrupt package. Then I edited the vestacp installation script and removed ...
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1answer
28 views

Can not install Ubuntu after manually deleting partition

Since I had some problems with my Ubuntu 12.04.1 In a dual boot system with Windows 7 on Acer 5560G, I had to manually delete the partition containing Ubuntu. Then I used windows recovery CD to rescue ...
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1answer
73 views

Can't find ttyUSB in /dev after connecting my USB dongle

I'm desperately trying to connect a 3G dongle to Ubuntu 12.04. Unfortunately every time I try to connect (using wvdial) I'm met with the message Cannot open /dev/ttyUSB0: No such file or directory I ...
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2answers
22 views

rsync delete files from target if not existing in source

Okay so I have looked up the existing answers here and elsewhere but what I can't find out is, if I use the --ignore-existing option along with the --delete option, will this combination I still be ...
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1answer
41 views

How to change permission to the users on ubuntu 12.04?

How to change permission to the users to restrict their accessibility? I want to cannot see or cannot access the System Files, Devices and Network in home folder? I used ubuntu 12.04 Thanks, Jerrick ...
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2answers
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Installed version 12.04 and it worls. Do I really need a new version…?

I was unable to install 14.04 and need not receive assistance with solving it; there, I was able to install 12.04. But, I was advised to install 14.01/14.10. Do I really need to install a newer ...
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1answer
12 views

How to use CD in way similar to a usb like you can Windows

I'm currently using Lubuntu but this seems to happen in other Distros as well. I can't copy files onto a CD without burning it, however in Windows you can use a CD in a similar way to USB where you ...
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44 views

Restrict user with access home directory only on Ubuntu 12.04

I want to restrict the employees(users) using the computers in this company. How can I restrict user to their home directory to cannot see or use their the Devices, File System and Network on Ubuntu ...
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0answers
24 views

Cannot access secondary GPU Bumblebee (Ubuntu 12.04)

When running optirun glxgears, I get: [ 1211.541206] [ERROR]Cannot access secondary GPU - error: Could not load GPU driver [ 1211.541351] [ERROR]Aborting because fallback start is disabled. When ...
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0answers
72 views

Dell XPS 13 won't recognize native resolution of U2413 Dell monitor

I have a Dell XPS13 developers edition laptop with Ubuntu 12.04. I am connecting the laptop to a Dell U2413 monitor via Mini-DisplayPort on the laptop. I am able to connect the two and mirror my ...
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0answers
17 views

How do I flag a question to be a duplicate? [migrated]

I have found the solution to a problem in a question that did not contain any of my search criteria. When I implemented a link in the question containing my search criteria, my link was eliminated and ...
0
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1answer
21 views

gimp source build error g_module_build_path

I m trying to build gimp 2.8 from source, all dependencies are me but now while if "make" on it it gives this error: /i386-linux-gnu/libgtk-x11-2.0.so: error: undefined reference to ...
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0answers
53 views

Ubuntu 12.04 - Integrated Webcam not found with lsusb but it shows up in usb-devices?

This is an Alienware Area-51 m15x laptop, pre-2009 so not a Dell product. The integrated webcam worked under Ubuntu 10.x and I actually had it working briefly and could see my face in guvcview after ...
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59 views

No sound Ubuntu 12.04

Sound from both speakers and headphones was working fine. After a recent update, the sound from speaker was not working but it was working from headphones, to fix the issue I did something I don't ...
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Uninstall samba with winbind

I have a dedicated 32bit machine running Ubuntu 12.04 the I installed Apache, php and MtSql on. It was running very well as my development server for web apps. It is on a home network with windows ...