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

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I lost my Ubuntu Partition

I have two operating systems installed on my computer, Ubuntu and Windows 7. I reinstalled Windows 7 today and I think have a problem with the Ubuntu partition. Running fdisk -l when booted into a ...
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28 views

NFS works in PC but doesnt in ARM board

I have done nfs in pc but i could not do it in arm board. is there anything in addition that is required... I did not change any setting but the following error is displayed mount: ...
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43 views

grub rescue moved folder out of root

I made a really silly sudo mv /* /some_folder move command on my remote server vm ubuntu 12.04 that moved my boot folder to /home/.../somefolder/boot I can access this folder via a ...
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26 views

Windows install (media drivers)

I have been trying to install windows 7 64bit onto my Ubuntu 12.04 machine for quite awhile. I succeeded in installing the win7 64bit iso onto my usb via unetbootin-linux-494 and formating the usb ...
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39 views

Cannot import .ova

I'm trying to import an .ova file into my VirtualBox on Ubuntu 12.04 (64 bits), but when I do this I get the following error: Failed to import appliance /media/USB/Respaldo 11 (Armando)/SW/Maquinas ...
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25 views

ubuntu: killing xorg logs user out

Experimenting with my ubuntu box, I killed Xorg. The effect was to log me out of my session. If I log back in, the screen goes black for a moment, and then logs me back out. I can log in as guest ...
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342 views

Network icon not visible in Ubuntu 12.04, how to get it back?

When I tried to configure a broadband connection in my Ubuntu 12.04 somehow the network icon has been removed from the system panel. I tried many kinds of solutions but still it is not visible. Now I ...
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50 views

How do i change wifi password without a monitor (Ubuntu)

I have an ubuntu device that is wifi enabled, I plan to distribute it to clients that may not have a monitor. What is the best way to modify the wifi password of such a device ?
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137 views

Disk partitions are not appearing separately when installing Ubuntu along with Windows 8.1

I have installed windows 8.1 and now I want to install Ubuntu 12.04 along with it and want dual boot OS. I have 250 GB HD and they partitioned in four drives in windows and in which one is 20 GB ...
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36 views

Compressing data/image by ziproxy and decompressing image/data with ziproxy

i am new in ziproxy,i have setup two ziproxy server for compressure and decompresure of http traffic but i have not succeeded in compressing and decompressing traffic through these servers.If any one ...
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159 views

Override homeDirectory in ldap.conf with unique path

I have a number of Ubuntu 12.04 PCs which are using an existing LDAP server for authentication. This is working for 90% of users of these PCs, but there are a handful of users which have "bad" default ...
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77 views

Linux Has Become Very Slow Dealing With Large Data

Last year I bought a computer, for around $1,800, so it is relatively high-end. When I first got it I was particularly pleased at how quick it dealt with large MySQL queries, imports and exports. But ...
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151 views

Why, in Ubuntu, I cant access to an SD card using the laptop SD card reader?

I have ab Ubuntu 12.04 installation on a Virtual Machine and I am finding some problems try to read an SD card inserted into the SD card reader of my laptop. The problem is that if I try to insert ...
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800 views

No sound after updating alsa

I am new to Linux but really love Elementary for its simplicity. After noticing that my sound was quite poor in Elementary, compared to Windows 8.1, I have tried updating the sound drivers. I ended up ...
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29 views

Standard user in Ubuntu 12.04 LTS does not automatically apply updates

We have a number of on-road users that use Ubuntu and do not have administrative privileges. They instead are "standard" users. Having had a look at one of the devices recently and although it has ...
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254 views

Build CentOS/RHEL with LFS Live CD

I am aiming at building customized centos/Rhel based distro using Linux From Scratch(LFS) hence, I am following this e-book : http://www.linuxfromscratch.org/lfs/downloads/6.3/ so ,I downloaded an ...
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26 views

How to “edit” pdfs in ubuntu before printing?

I want to take print outs from ultimateguitar.com and if it spans for 2 pages I want it to make double column. For example if I have a look at the print preview of this song, I want the page 2 to be ...
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240 views

NO <DUTY, RUN, PERIOD, POLARITY> in bone_capemgr.9(ocp.2/pwm_test_P8_13.#)FILE Beaglebone Black

I just a fresher did the servo test with my BBB, however, when I use some command as ...
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44 views

Plank stops responding around 15 minutes on elementary OS

After some time of booting up or re-logging to my account, Plank will completely stop responding and I cannot use it at all. None of the modes 'intelligent hide', 'auto hide', 'dont hide' or 'hide on ...
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38 views

how to easily configure openvpn with bridged interface?

I have two PC(Ubuntu 12.04 lts) both residing in two different local lan network both having private IPs. I have searched the web, read many website contents but was unable to setup openvpn properly. ...
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760 views

Bootstrap - Jekyll: Forbidden - no access permission to `/'

I'm doing a tutorial on Twitter Bootstrap and apparently I need to install Jekyll for this. I've followed the installation procedure, but now I'm stuck getting Jekyll to work. In the terminal (Ubuntu ...
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43 views

Network connection issues with Ubuntu 12.04

After reading through several threads on here about network connection issues, and trying to solve it on my own, to no avail, I thought I'd post the problem here. I have an HP Chromebook 14 running ...
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Ubuntu 12.04 Server bottleneck. Think its hdd related. Does this vmstat report support this?

Sorry im sorta new to this enviornment. Im pretty confident the bottleneck I have been hitting is disk i/o related but dont know if these numbers are high or what a good baseline is. Im running about ...
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2k views

Upgrade to PHP 5.3.23 on Ubuntu 12.04

I want to use Zend Framework 2. I have installed the ZendSkeleton Application. When I try to install Framework, I get the following error: #> php composer.phar install Warning: This development build ...
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3k views

This computer currently has no detected operating systems

I am new to ubuntu 14.04 and I am attempting to install it on my laptop (Acer Aspire V3/772G-Intel) which already has Windows 7 Ultimate x64. I currently have two partitions on my HDD and I was ...
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96 views

Network Issues using Ubuntu 12.04

I recently installed Ubuntu 12.04 on my HP Chromebook 14, which now allows me to switch back and forth between Chrome OS and Ubuntu. I had no issues browsing in Ubuntu a few days ago. This morning, ...
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121 views

Reboot on hardware freeze

OS: Ubuntu Desktop 12.04 How can I make sure that even if the kernel has a very low level, massive failure, the system will reboot? Or if that is impossible, what is the best freeze to reboot ...
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386 views

Trying to move the MySQL data directory on Ubuntu 12.04

OS: Ubuntu 12.04 I am trying to move the mysql data directory and log files to separate mounts to make it easier to swap out drives when needed in the future. ##Moving the MySQL data directory sudo ...
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41 views

Qemu and KVM error in my system

Whenever I execute virsh version or qemu version I got this error qemu: symbol lookup error: qemu: undefined symbol: rbd_aio_discard I am unable to create the virtual machine in virtual machine ...
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24 views

Ubuntu Shortcut Menu opening spontaneously

About two days ago the shortcut menu started opening spontaneously and wont close for more than 2 seconds, making it impossible to type anything since most keys start working as shortcuts and others ...
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79 views

How to retrieve data from local disk C (cannot be mounted) using Ubuntu 12.04 live USB?

I have an Acer Aspire 4740 with Windows 7 Home Premium installed in it. This laptop has a local disk C of 90 GB (where Windows 7 is installed) and disk D 270 GB in it. Last week I suddenly ...
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86 views

how to make external disk mounted executable?

I'm new to Linux and running on Ubuntu 12.04. I have a windows partition mounted to it but the problem is I can't run executable files (I can't use ./ on a file in that partition). How do I correct ...
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80 views

Connect two Guest OS's in VMWare WorkStation 10.0

I have installed Ubuntu 12.04 in VMWare WorkStation 10.0 and I want to connect and ping / ssh the another Ubuntu 12.04 which is installed in the same host OS in VMWare WorkStation 10.0 Is it ...
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519 views

Installing Dell v313 printer/scanner on Ubuntu 12.04

I've been searching for hours now, trying to find a working driver for a Dell 313 printer/scanner (v310 - 510 series) on Ubuntu 12.04. But I can't seem to find a working one. I really need this to ...
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244 views

System time messed up after booting from Linux flash-drive

I had recently installed Edubuntu 12.04 LTS onto a flash drive and have started booting from it. Since then, every time I reboot my system after using Edubuntu, my Windows time is four hours later ...
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463 views

Ubuntu laptop powers off without warning very soon on battery

Problem: I have a laptop. It works very well on AC power, but on battery power, it powers off in a few minutes, if not seconds, without warning. I saw lots of similar problems not only from SU, but ...
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348 views

Automated sudo and screen command

I would like to be able to launch a script in a separate screen command session as a separate user when I run a .sh script. Here is what I think it may be in the script: #I am also starting xampp ...
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90 views

two nics on ubuntu server cannot reach outside

I have two Nics on server: auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.137.66.69 netmask 255.255.255.0 dns-nameservers 8.8.8.8 auto ...
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174 views

Triple boot (OSX, Vista, Ubuntu 12.04): replace Ubuntu with CrunchBang

I'm probably not really a power user (I can read instructions) but my problem is pretty specific, so I figured it would fit here. I'm sorry if it doesn't. I managed to set up triple boot (OS X ...
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31 views

Can't start Byobu?

I can type this command byobu on the terminal and Byobu will start but when I click on the Gui icon it starts and closes fast. What I did before that is enable autolaunch and then disable it I thought ...
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17 views

Error installing Keystone OpenStack

I'm trying to install OpenStack in Ubuntu 12.04 which is hosted on Windows 8 via VMWare Workstation 10.0 but I'm getting error while installing keystone. I have pasted all output in pastebin here
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101 views

Download Ubuntu Live CD

I wanted to download Ubuntu Live CD for my system.I use Intel laptop machine. I downloaded Ubuntu version here http://www.ubuntu.com/download/desktop (For extended support,choose Ubuntu 12.04 LTS) ...
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117 views

SSH asks password when invoke it in script

I have one master and four slave computers. I generated rsa public/private key on master PC. Then I copied publickey (id_rsa.pub) to slave machines as authorized_keys. It doesn't ask password when I ...
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64 views

Multiple interfaces on Ubuntu

There are multiple interfaces on my Ubuntu box - Ubuntu 12.04.1 LTS - and each of them is assigned an IP from the same subnet. # ifconfig eth0 Link encap:Ethernet HWaddr 00:50:56:9f:0a:0c ...
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48 views

Accidentally deleted /usr/lib/python2.7

I accidentally deleted /usr/lib/python2.7. I tried to get that directory from another machine and copy it onto mine. However, I can no longer access the Internet now. It just keeps trying to ...
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68 views

storing and securing the video using ffmpeg

this is my first question on the site. Currently I am working on one application which captures the video and store it in the system hard drive. Both the functionality is working fine.We are storing ...
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2k views

can't install windows 8.1 after Ubuntu install

I have lenovo G510 laptop. Initially it was running on Win 8.1, I wanted to install Ubuntu 12.04 LTS alongside it. after installation I couldn't boot my Win8.1 (I choose it, after one second it return ...
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821 views

usb multicardreader detected, but device not shown/available, Ubuntu 12.04

I have problems with my usb cardreader in Linux Ubuntu 12.04 . I think the device is detected by the operating system, but not shown in category devices and therefore not available. I have checked ...
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74 views

Ubuntu/Xubuntu How to print multiple 1 page files in desired order using double side printing?

I got document scanned 1 page per jpg, files are named (the order i want to get) a-1.jpg b-1.jpg a-2.jpg.... I'm looking for app that will let me arrange files in desired order and then print them ...
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43 views

Upgrade user to skip using sudo to write files

I need to run a Capistrano recipe to setup some services so I have to be able to write to /etc/init without prefixing my command with sudo. How can I make an Ubuntu user abel to write to /etc/init ...