Ubuntu 12.04 (aka Precise Pangolin), is the sixteenth release(version) of Ubuntu from Canonical.

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Ubuntu PPA for collectd?

I'm looking for a semi-official PPA for recent versions of collectd (5.2+). There appear to be several possible matches, but I'm hoping to find the "right" one for production use which will keep ...
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2k views

How do I setup my Ubuntu 12.04 PPTPD Server properly?

Ok so I have setup a PPTPD server and configured it appropriately. Here is my pptpd-options: name pptpd require-mschap-v2 require-mppe-128 ms-dns 8.8.8.8 ms-dns 8.8.4.4 proxyarp nodefaultroute ...
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64 views

Seemingly inconsistent output from `top` re: Swap header vs. SWAP column

How should I interpret this seemingly inconsistent output from top re: swap? Running free confirms that no swap space is in use: $ free -m total used free shared ...
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2k views

Avconv increases file size

I am using the version of avconv in Ubuntu 12.04 to archive videos. I would preferably use some kind of lossless video compression (e.g., huffyuv or FFV1), but using the original video stream (copy ...
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104 views

How to add extra packages to Ubuntu install CD using kickstart

I used kickstart to automate Ubuntu12.04 alternate iso installation. I am able to automate the installation. Now I want to install some extra packages such as teamviewer during OS installation. But ...
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2k views

USB flash drive is not detected in Ubuntu 12.04

I have 15GB Kingston flash drive. It is not detected in Ubuntu 12.04 and remains hung up in Windows too. sudo fdisk -l output: WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The ...
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302 views

How to Create a Filesystem on Dynamic-sized Virtual Drive - VirtualBox on Windows 7 Host, Ubuntu Guest

Moved here from StackOverflow I made my VirtualBox (4.3.0) Ubuntu VM (on Win 7 host) too small. I have the choice of enlarging the virtual disk (all I read makes that sound dangerous and complicated) ...
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343 views

Chromium Omnibox not showing search suggestions?

Chromium omnibox is not showing suggestions, i have checked the settings, prediction is enabled. When i changed the search engine to bing it was working fine with suggestions but when i revert back ...
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111 views

Explaination needed for strange df and du results

Can someone help me to understand the following output # df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 8.0G 7.5G 167M 98% / udev 7.4G 8.0K 7.4G 1% /dev ...
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612 views

Kinect Motor Device Not Detected

I'm trying to install a kinect on Ubuntu 12.04. Unfortunately, lsusb shows that the motor device is not detected : Bus 002 Device 009: ID 045e:02c2 Microsoft Corp. Bus 002 Device 010: ID ...
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78 views

Windows 7 shows all drives when on Ubuntu

I have a laptop and a desktop. On my Desktop I have Windows 7 Pro 64 bit and I just recently installed Ubuntu 12.04 on my laptop. In Ubuntu I setup samba, and attached myself to the network which ...
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350 views

Convert RAW files with DCRAW while maintaining ICC profiles

I would like to decode my Canon EOS 6D camera RAWs using DCRAW. My problem is that I want to retain the original picture style of the photo (including the ICC profile) during the RAW conversion to ...
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1k views

Xlib: extension “GLX” missing on display “:0.0”. Error: couldn't find RGB GLX visual or fbconfig

I'm really confused and lost. I'm a completely new Ubuntu 12.04 LTS user and I'm trying to run a game on WIne and OpenGL. I was instructed to use the glxinfo command on my terminal to see if I had ...
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785 views

Screen goes grey in Remote Desktop Connection from windows 7 to ubuntu server

I recently got a 64 bit ubuntu server based on Ubuntu Desktop 12.04 "Precise Pangolin". However I can't seem to connect to it properly from my windows 7 64 bit machine. I can get to the login screen ...
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503 views

MySQL crashes when connecting from localhost with tcp (UNIX sockets work)

I have Ubuntu 12.04 running MySQL server 5.5.24. I can connect with mysql --user root -p. status shows me : ... Connection: Localhost via UNIX socket ... When I try to connect with mysql --host ...
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132 views

Access a windows dynamic hard drive through a virtual machine on ubuntu?

I have a Windows 7 OS and am thinking about transitioning to a dual boot set up with Ubuntu 12.04. From what I recall, it is not possible to natively access Dynamic Windows Partitions in a Linux OS. ...
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422 views

Windows Recovery partition unusable after Ubuntu 12.04 install on Eee PC 1005P

Installed Ubuntu 12.04 over the secondary (D:) partition with Grub2 handling multi-boot. Never accessed the 'Recovery' option in the boot menu until Windows7 Starter became unusable due to HDD failure ...
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407 views

Windows 7 won't shutdown; Win7/Ubuntu dual-boot

I'm reposting this from askubuntu.com, as it was discussed fairly quickly that Ubuntu's presence on a separate partition was almost certainly NOT the problem, and as such this question wasn't ...
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749 views

VMWare: Can't copy text from Ubuntu 12.04 guest to Windows7 host

I've got Ubuntu 12.04 (64-bit) running as a guest under VMWare 8.0.4 build-744019. The host is Windows7 sp1 (64-bit). I can copy text from Ubuntu into Windows, but not back. VMWare tools is installed ...
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53 views

Ubuntu 12.04.5 - unable to connect to internet

I have just installed ubuntu 12.04.5-desktop-i386 However, i am unable to connect to the internet. Also, do i have to download packages? Any other info needed? Please do ask. Thanks!
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44 views

connected laptop with TV- sound from tv not working

I have connected a tv via HDMI to a laptop running ubuntu 12. I can see the video on the televsion but the sound plays from the laptop and not from the television. Any ideas on what I need to change ...
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Why isn't “(ulimit -d 1000; firefox) &” working?

I'm trying to limit the memory usage of firefox to prevent it from stalling the whole system with problematic web sites. I tried, in bash: (ulimit -d 1000; firefox) & This should limit the ...
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184 views

How to re-install a ubuntu package when sudo dpkg -i does not work?

I am trying to re-install a broken package (tzdata) using dpkg but sudo dpkg -i tzdata_2014e-0ubuntu0.12.04_all.deb does not work. Here's the output dpkg: error processing ...
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179 views

Cifs share doesn't preserve permission configuration in smb.conf (775 instead of 777)

So I have a share on ubuntu that is accessed through both ubuntu and windows machines. my relevant smb.conf is like this: path = /share create_mask = 0777 force create mode = 0777 security mask = ...
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144 views

Mysql Failed to started after mysql dump restore process

i tried to restore a db backup to a newly created database, suddenly its starts showing error. Can't connect to local MySQL server through socket /var/run/mysqld/mysqld.sock so i checked ...
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341 views

OpenSSL::SSL::SSLError while trying to run chef-server

Installed Chef server on my Ubuntu 12.04 server. Following these instructions Getting the following error # chef-server-ctl test The source :rubygems is deprecated because HTTP requests are ...
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40 views

Apache2 SetEnv For Multiple VirtualHosts

I am looking to use a single declaration of a SetEnv var in my apache2.conf file & have that variable used by all the virtualhosts I currently have virtualhost-specific vars set up, but would ...
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50 views

Keyboard intermittently stops working on Ubuntu

I am running Ubuntu 12.04.4 LTS on my desktop and my keyboard will occasionally stop responding for a few seconds. It immediately begins about a second or so afterwards, so nothing freezes. Just now I ...
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22 views

Default bluetooth device not allow to record from another device

I have already set the bluetooth device as default device for recording the audio. But I have add the another usb audio device for recording, the bluetooth device not allow the usb device to record ...
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221 views

2 computers 1 wifi connection 1 ethernet connection bridge?

My computer setup is very strange not being able to ethernet directly to my network. I have 2 terminals(desktop computers) both running linux(ubuntu 12.04.04 server). I have attempted to use brctl ...
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114 views

Stop screen dimming after 60 seconds - Ubuntu on a MacBook Air

I'm running Ubuntu 12.04 on a MacBook air - everything works fine, apart from the fact that the screen dims after 60 seconds of activity. Is there any way to stop this? My computer is on mains ...
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55 views

How to make a Bootable CD from a HDD image

The title says the idea, i need to make my ubuntu server and all the modifications & instalations i do on it be imaged into a CD, with the idea, of course of use this CD to install the clone in ...
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83 views

Glitches after closing/opening laptop lid. T410p, NVIDIA

I've just installed Ubuntu 12.04 on a Lenovo T440p. I have an integrated Intel GPU, which works fine (until now), and another gpu (NVIDIA GeForce 730M) which I wanted to use instead. I installed the ...
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VMWare disk space differs with actual disk space

My situation is the opposite of Virtual Machine running out of disk space when there is still space left. I have an Ubuntu VM which was allocated 16GB. The VM became terribly slow recently and on ...
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Hyper-V Wifi Ubuntu 12.04 LTS

I am installing hyper-v for the first time on a device that uses a wifi connection. Previous installations have used wired network adapters. I noticed after creating an external switch , the wifi ...
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90 views

getting error while adding a system call

I'm using Ubuntu 12.04(64bit) and installed kernel version linux-2.6.37.3. My device is ASUS x201ev net-book(64 bit). I'm providing the link of procedure i used. i edited unistd_64.h file also and ...
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48 views

How can I detect if Chromium has crashed?

I have a machine running a webpage through chromium in a display case. When the webpage crashes and displays "He's Dead Jim" I need an automated CLI solution to re-start the browser. I'm currently ...
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99 views

How to interpret state and log files written by preload program in Linux?

Preload is a program which prefetches files from the disk needed by various applications to reduce application startup time. It seems to be very popular and useful (just google preload+linux) but the ...
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263 views

Unbuntu, Hyper-V, and Remote Desktop: strange behavior

This question got kicked off of stackoverflow, and they suggested I might have better luck here. I'm trying to learn Ruby on Rails and fighting with the environment is proving to be a challenge. ...
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346 views

Editing Kernel configuration file

I'm trying to compile uplcom driver for Ubuntu 12.04 for USB support of PL-2303HX serial adaptor using the following link. http://manpages.ubuntu.com/manpages/jaunty/man4/uplcom.4freebsd.html But, ...
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253 views

Unable to commit file through svn, server sent truncated HTTP response body

I have my own VPS, on which I want to run a simple SVN + chiliproject setup. I have re-installed SVN, CHILI and the OS several times, and it always works for a couple of hours/days and then it just ...
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293 views

screen flickering intel 4000 HD on ubuntu 12.04 on full screen

Specs: Ubuntu 12.04 - 64 bit intel 4000 HD 8GB RAM I've installed the latest intel drivers from ppa packages: ubuntu-x-swat The problem is that when I play a game in full screen mode, the screen ...
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124 views

Adding 25 (student) users to Linux system (Ubuntu 12.04 LTS) VM

I would like to set up 25 student accounts on a Unbuntu 12.04 LTS VM that I have provisioned via Windows Azure for teaching purposes. Can anyone point me toward some scripts that would automate this ...
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411 views

DKMS failing to complete in Ubuntu 12.04

After my last attempt to run an update with sudo apt-get update; sudo apt-get upgrade I got into a never returning update step (see below). So far I can only Ctrl+C but it will be triggered again ...
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Unable to find files downloaded in Ubuntu

I am using Uuntu 12.04. By Wubi. I have faced two issues: 1) I downloaded .iso file of Ubuntu 12.04 from Mozilla and gave download path in Windows partition. But I cannot find the files downloaded. ...
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387 views

Trouble booting from usb (Compaq dc7600 Small Form Factor)

I have been trying over the last few days to boot from a bootable usb pen drive on my Compaq dc7600 Small Form Factor desktop PC so I can dual-boot, but to no avail. The pen drive contains Ubuntu ...
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321 views

HTTP-Error 500 in Openmeetings

I installed OpenMeetings on Ubuntu Server 12.04.1. And everything was working fine until I came across the File Upload. I tried to Upload some pdf files for Testing. But after selection when I tried ...
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309 views

Ubuntu undefined symbol: _XGetRequest

I've installed mednafen emulator in my Ubuntu 12.04, the thing is every time I try to run the game, it crashes with mednafen: symbol lookup error: /usr/local/lib/libSDL-1.2.so.0: undefined symbol: ...
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100 views

Unable to see video from Xen graphical console

I have Xen running on Lubuntu except that I can't see anything on the console. How do I fix this? It says "Graphical Console is not yet active for guest" Thanks.
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64 views

Don't understand Linux screensaver

Could someone explain how the screensaver in Ubuntu and Linux Mint works. This "blank after so many minutes" or only one screensaver doesn't make sense to me. Thanks.