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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Boot Failure 12.04

My machine won't boot, freezing mid-boot with a flashing caps lock, and booting in recovery mode I managed to get "Kernel panic -- not synching: Attempting to kill init! exitcode=0x00000007" I took ...
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36 views

Problems getting back onto Ubuntu

I run Ubuntu alongside Chrome OS. I logged out of Ubuntu because it needed to restart and now when I try to get back in, it will no longer let me. It says a file is not found. Below is exactly what it ...
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1answer
22 views

Allow users to set higher (lower?) nice levels

I want to allow users to set a nicelevel lower than 0 (and any nice level really) in my system. I'm testing by logging in again as a user of the affected user group after I set the change and trying: ...
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1answer
33 views

Can't download anything from the Ubuntu Software Center

I have been trying to download something from the Ubuntu Software Center and it keeps coming up with "Requires installation of untrusted packages", underneath it says "The action would require the ...
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1answer
43 views

How to open the Software-Center in the terminal?

I'm new at this Ubuntu stuff and I'm trying to get the software center but every time I put in the command in the terminal it is just saying package not found. I am 100% sure that I have been ...
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2answers
28 views

Failed in fetching updates/upgrade (Virtual Box)?

I'm running Ubuntu 12.04 Server (guest machine) on VirtualBox having Windows 7 as host machine. I tried to get updates through sudo apt-get update command but i end-up with the following error codes ...
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1answer
14 views

MTP support on Ubuntu 12.04 using Ubuntu 14.04 repositories

I have Ubuntu 12.04.5 LTS 32-bit installed on one of my laptops and Ubuntu 14.04.1 LTS 64-bit installed on the other. I think the latter version of Ubuntu has native MTP support as I did not install ...
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12 views

Ubuntu 12.04 server installation fails bootloader cannot be installed

I have been trying to install the server edition on a DELL Inspiron Laptop (1564) and it fails at the grub install boot loader step. Ubuntu 10.04 is installed without any problem though. I'm ...
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17 views

See information in my wifi hotspot

I wanted to know how do I view information going through my wifi hotspot? Like if someone is searching in Google or something and I want to see those searches
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40 views

Ubuntu 14.04 stuck in login after upgrade

After upgrading from 12.04 to 14.04, I'm not able to login anymore (guest account doesn't work too); there's a loop (it goes back to the login). What should I do? I've already read Ubuntu gets stuck ...
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0answers
9 views

New session when remoting Ubuntu 12.04 from mac

I'm using Microsoft Remote Desktop to remotely access to my desktop with Ubuntu 12.04 (with xrdp installed) from my MacBook Pro, using the same username as in the desktop. I can successfully log in ...
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21 views

touchpad isn't working

I'm using Ubuntu 12.04. And suddenly from 2 days touchpad isn't working when I log in with my account. It works well with the guest appearance. Mouse and touchpad settings are normal.How do I make it ...
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18 views

graphic and sound problem with SONY VAIO VGN-FS980 UBUNTU 14.04 LTS

First Ubuntu was a little slow with the graphics so I decided find for new drivers but after installing the intel graphic installer, the graphics and the computer in general are faster but the cursor ...
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39 views

New Ubuntu 14.04 install - can't connect to wifi

There are dozens of wifi problem here on askubuntu; I've tried the answers to several of them and nothing worked. The symptom is that my Wifi network does appear in the network menu, but when I try ...
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0answers
9 views

How do I install GNOME CD Master?

I used to use GNOME CD Master on 10.04 to split live audio tracks using 'track markers'. It did not split the main file, it could simply burn one long audio file as multiple tracks. It was a very ...
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0answers
28 views

help with uninstalling ubuntu 14.04 and reinstalling 12.04.03 lts

okay so i installed ubuntu 14.04 way back but wanted to uninstall it because battery drains very quickly.so i decided to reinstall the old 12.04.03 lts.so i formatted the the drive on which ubuntu was ...
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43 views

Upgrade from 12.04.05 to 14.04 (LTS) via terminal doesn't allow me to log in

I am a newbie user regarding Linux OS so please forgive me if I cannot explain some things correctly. I will try though to explain you in details what I tried to do and and what was the result. By ...
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1answer
22 views

How can I use Dropbox as a backup without syncing the backup to my harddrive?

I use Ubuntu 12.04 64 bit. I read this link: "How can I use DropBox as a simple backup?" which suggests to backup using deja-dup to the Dropbox folder. However, if I would do this, the backups will ...
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10 views

Sticky Notes in Ubuntu as of windows [duplicate]

Hi I need to know about a sticky notes application in ubuntu similar to that of windows which pops up every time I boot my system as if a start up application.
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14 views

cannot install ubuntu software center [duplicate]

I removed my Ubuntu software center. but I am not able to install it again. acer@acer-Aspire-E1-530:~$ sudo apt-get install synaptic software-center [sudo] password for acer: Reading package ...
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1answer
40 views

Ubuntu 12.04 no wlan0 interface

I installed Ubuntu 12.04 on an Acer e5-571-31KM. Dmesg and lspci output indicate a wireless Network adapter was found, but according to ifconfig there is no wlan0 interface. Unfortunately I have no ...
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1answer
19 views

ubuntu 12.04 lts netbook installation throught usb

I want to install ubuntu 12.04 lts on my asus disney netbook and i can not launch wubi.exe from my usb drive when the computer starts up. I have checked BIOS settings and it is all ok because I have ...
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0answers
10 views

Gnome-session-fall-back unity not working

I installed Ubuntu 12.04 in my old PC.But when I tried to change unity to gnome-session-fall-back,it is not working.When I login with gnome-session-fall-back unity I am only getting default Ubuntu ...
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1answer
30 views

Gray desktop after updating XFCE on Xubuntu

Lately, I've been trying to run multiple monitors on Xubuntu without having them cloned. On the internet, I found some instructions to do that which basically required me to add a PPA in order to ...
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24 views

dhcpd server not listening to second interface

I have a 12.04 server which is happily responding to dhcp requests on eth1 (172.16.1.1). Now I have set-up a second interface on eth2 (172.16.2.1). I can ping this interface all right and even ...
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22 views

Completely uninstall Nodejs, npm and node_modules

so my Node and npm settings are currently messed up beyond repair( or so I think). What I would like to do is to completely remove all of it and start from scratch. What I have done till now can be ...
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12 views

Ubuntu 12.04.5 slow keyboard

I installed Ubuntu 12.04.5 on my Asus laptop and I have a problem with my keyboard which is randomly slow and repeat some characters. So I looked for a solution, I found that I have to disable "Slow ...
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1answer
23 views

install opencv-2.4 in beagleboard zm rev c (12.04)

I'm running ubuntu-12.04-preinstalled-desktop-armhf+omap.img in my BBxm. I want to install opencv-2.4 for a software dependency, but apt-get install only gives me opencv-2.3. I want to avoid manual ...
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35 views

Ubuntu 12.04 Sudo apt-get update failing to fetch and unable to connect [on hold]

Failed to fetch http://extras.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages Unable to connect to 192.168.1.5:6588: W: Failed to fetch ...
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1answer
17 views

High CPU usage in the processes related to postgres in ubuntu 12.04

My Ubuntu server 12.04 hangs quite oftenly (say once in a day), after hard reboot it starts running normally. The server is Intel Xeon having 2 CPUs with 8GB RAM.There is high CPU usage in the ...
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1answer
21 views

Ubuntu 14.04LTS RDP client supporting Hebrew

I'm looking for an RDP client that will support Hebrew (which I added to my system already) Could I use the solution I found here for an Ubuntu server?
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1answer
22 views

I can't print pdf & text files

I can't print PDF & text files. I am using ubuntu 12.04. I am able print excel docs & HTML documents. Also Print test page is working. Please help me to resolve the issue.
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13 views

FCOE Interface Connectivity Issue

We are trying to initialize FCOE interface for EMC SAN (vnx7600) Connectivity using open FCOE utilis on Ubuntu 12.04.5 LTS with Broadcom (brcm 10gbe 4p 57840s-kbndc) network card. But we are able to ...
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6 views

Radeon HD 7770 Ubuntu 12.04 installation problem

I try to install ubuntu 12.04.5 but it always says "The system is running in low-graphic mode" after I clicked OK it says "Stand by one minute while the display restarts" but after waiting 5 minutes ...
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20 views

Ubuntu 12.04 in login loop as lightdm-session says upstart not found

I tried to install a package systemd (this replaces upstart in Utopic 14.10 and up). See my yesterday question How to Re Generate All Gnome Schemas for Ubuntu 12.04. The result was that it didn't ...
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12 views

Can't read permanent MAC address and adapter has no association?

I'm using a Rosewill RNX-n180ube USB wireless adapter on Ubuntu 12.04 64x. I've found two things to be strange that I want to fix. To start, when I put the connection down to use mac changer I get ...
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1answer
18 views

error opening display after lightdm stop

I'm trying to install CUDA and following these instructions. Eventually I get to a point where I need to run: sudo service lightdm stop At that point the GUI shuts down but instead of a terminal ...
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2answers
33 views

Will “kill -SIGTERM” stop “tail -f”?

Just as the title says, Google gives me nothing and I can't test it on this server. The command as is follows: tail -f <file> | fgrep --line-buffered "string" | sed -u 's/stuff//g' >> ...
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2answers
33 views
+50

Check which SSH key was used to login

So stupidly enough in our development team every individual SSH Key is used to access the root user directly. When Checking the auth.log i can find this Dec 18 09:45:04 webserver sshd[12377]: ...
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2answers
23 views

Ubuntu not booting

I have a new Dell Inspiron 3542 laptop with pre-installed Ubuntu 12.04. Recently I tried to upgrade to ubuntu 14.04 LTS. After all the download was done online, Update Manager was Installing and ...
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0answers
6 views

Ubuntu 12.04 Unity interface becomes invisible when trying to modify color or highlighting of a text in LibreOffice

I'm experiencing a weird problem, and I'm not sure whether it is about Libreoffice or Unity shell itself or both. While working in Writer (version 4.2.8.2, but I experienced the same in 3.5), I try ...
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10 views

12.04 LTS: Monodevelop having nothing but bugs? (Unity, ARM, Crouton)

Anything related to Mono/MonoDevelop refused to install on my desktop before. So, I decided to reinstall Ubuntu. The first thing I did when I opened it was go to UXTerm and type sudo apt-get install ...
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1answer
15 views

How to Re Generate All Gnome Schemas for Ubuntu 12.04

To compile a package I went on installing systemd package from Utopic 14.10 with all its dependencies on my [Modified] Ubuntu 12.04. As it's not existing in Systems prior to Trusty 14.04. Everything ...
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0answers
32 views

Running 3 monitors on Ubuntu 12.04

I would like to run 3 monitors on Ubuntu 12.04. I have NVIDIA Quadro 5000 which is able to support 2 monitors. I only have an additional PCI slot so my option are limited for a second graphics card. I ...
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1answer
29 views

How to use rsyslog?

I've been scouring forums for a few hours and cannot find a concrete explanation on how to use rsyslog. I really just need the basics. I have a log file logFile.log and I want to forward the logs to ...
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26 views

unable to install octave in 12.04 [on hold]

Some packages could not be installed. This may mean that you have Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable ...
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48 views
+50

Screen repeatedly goes black for a few seconds after suspend

When I suspend my laptop and then resume, the screen repeatedly goes black for a few seconds and then returns to normal. This happens randomly about once a minute without my behaviour having any ...
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1answer
14 views

Getting error after ubuntu 12.04 update

I was using 'ubuntu 12.04'. Windows7 is already installed in the system. I am getting the following error when I try to update Ubuntu (sudo get-apt update) GNU GRUB version ...
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0answers
10 views

Write udev rules for serial device

I have one concern regarding device name assign by kernel like /dev/sda* , /dev/sdb* ... etc but i would like to write rules for assign name to new pattern like "/dev/sc**"(starting with modified ...
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1answer
20 views

getting different version of java in ubuntu

I am getting different version of java when i run java -version and javac -version. for java-version iam getting java -version java version "1.7.0_65" OpenJDK Runtime Environment (IcedTea 2.5.3) ...