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

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Ubuntu 12.04 Desktop package installed, but can't launch “gnome-terminal”, “cannot open display”

I have install ubuntu desktop packages on a 12.04 LTS server. X server comes up fine, GUI works fine without any issues. However, when I tried to issue a terminal, I get "Cannot open display", I find ...
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55 views

kate's “open file” doesn't show all files

when I go to open a file from kate (in ubuntu), it doesn't show me all the files in the current directory. what's more, it shows me some files that aren't in the current directory. only when I ...
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1answer
61 views

Can't access Ubuntu or Windows after shut down the Ubuntu

I'm using Ubuntu 12.04 LTS and Windows 7 as partition. I was using ubuntu for some time and tried to shut down. But it doesn't shown shut down dialog box. So I again tried to shut down from top right ...
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2answers
88 views

Pages on server can be accessed but server cant connect to internet?

I have a virtualbox server running ubuntu 12.04 on a windows 7 host machine. The machine is set up to have both a NAT and a bridged adapter. When I access the server from other machines (port ...
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2answers
972 views

HP Pavillion 6 notebook series boot menu option is not working

I am not getting boot option even after pressing esc key repeatedly during start up. I start my notebook starting pressing esc key to get boot option but instead it boot from hard drive and windows 8 ...
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3answers
6k views

Wired Connection Suddenly stopped working on ubuntu 12.04 after update

Here is the thing! am on day 5 of no wired internet connection. I have spent the last 4 days searching through every forum and Q&A sites, until i finally decided to post this, so I have done my ...
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190 views

phantomjs shell_exec from PHP doesn't work, terminal works fine

I can run the phantomjs command just fine from terminal, but from shell_exec, it only partially works. It's running phantomjs and the .js file, but it's returning page rendered without actually ...
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286 views

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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18 views

Connecting to custom-colour ubuntu shells from OSX Terminal

I wish to somehow distinguish between different ubuntu servers we have when connecting from various OSX systems. It would be good to set the shell prompt or background colour server-side. Is this ...
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2answers
803 views

Cannot boot to Windows 8.1 after installing Ubuntu 12.04.3

I installed Ubuntu version 12.04.3 on my desktop and after that I cannot boot Windows. The computer has two hard disks (one is 2TB, one is 1TB). Before I installed Ubuntu, I have Windows 8.1 installed ...
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1answer
1k views

Ubuntu will not boot after upgrade

I upgraded from 10.24 to the next version and now during boot I see the Ubuntu screen briefly but after that the screen goes black. I can get to the recovery mode but I don't know what to do. I know ...
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1answer
144 views

How to Delete Multiple Files Inside Multiple Zip Files?

Currently I am doing the following command to delete a file inside a zip file on my server: zip -d file.zip .exe But I have so many zip file that needs to delete all files with an .exe file ...
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233 views

Error: tasksel install lamp-server

I'm having trouble using tasksel to install lamp-server on ubuntu 12.04. Here's the error: Can't call method "set" on an undefined value at /usr/share/perl5/Debconf/FrontEnd.pm line 126, <GEN0> ...
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38 views

Facing a Ubuntu System error

I have a Ubuntu 12.04 installed system.Everything was working well all this while until I have been facing serious errors.Firstly the System sets up quiet slowly after I log in. Secondly the default ...
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441 views

Set up a sub domain on a Nginx server Ubuntu 12.04

I am trying to learn as I go: I have set up Nginx server on my Ubuntu 12.04 Droplet on a Digital Ocean account. I have successfully pointed my domain (registered @ godaddy) to my droplet (I can see ...
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65 views

Cloning one server to another

I have heard the term "replication" among database usage where you clone one database into another allowing them to be synced. However is there a way to effectively make this happen in server ...
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190 views

Permission denied to mounted NFS

How do you grant read/write access to a mounted NFS filesystem on a remote server? The user I want to have access has UID=1000 and GID=1000, so I tried mounting with: sudo mount -t nfs -o ...
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1answer
215 views

Hide exim4 version from email headers

I've setup exim4 on a ubuntu 12.04 server. When an email is sent, the current "Received" header has the following content: Received: from user by example.com with local (Exim 4.76) (envelope-from ...
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2answers
207 views

Why is my recursive grep not working?

I am in a parent directory and want to search for any ODT files (LibreOffice Writer) that contain the phrase "GWT" in them. I'm on Ubuntu 12.04 desktop. From the terminal: ...
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279 views

Ubuntu 12.04 64-bit guest on Windows 7 32-bit host is really slow

I have Windows 7 32-bit professional as host OS. Ubuntu 12.04 32-bit runs really fast as a guest, but Ubuntu 12.04 64-bit is very slow. I did apply all the patches, installed guest addons and enabled ...
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58 views

How to watch ALL Youtube videos fullscreen

There are some youtube videos which I can view full screen such as: http://www.youtube.com/watch?v=Qt1WVeyMqdo There are also some videos which I cannot view full screen (it does not fill the screen) ...
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2answers
480 views

How to boot windows after uninstalling ubuntu?

I am using windows 8 system and I tried to install ubuntu by making a separate partion. But after deleting the partitions created for Ubuntu, it is still trying to load ubuntu and not windows. If I ...
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2answers
47 views

Konsole Colour Scheme

I use konsole 2.8.5 on Ubuntu 12.04 32-bit. I wish to make some changes to the colour scheme. I would like to see the text before the $ symbol in a different colour, other than the regular text ...
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2answers
267 views

How do I access phpmyadmin?

I get a 403 Forbidden when I try to access my phpmyadmin. I installed it from the repository and choosed apache2 in the installation progress. The symlink phpmyadmin.conf in conf.d to apache.conf in ...
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1k 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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Ubuntu FTP Server - Hetzner

I have an FTP Backup Server in Hetzner with details Backup Server: u*****.your-backup.de I am trying to connect to it through my ubuntu server using command $ ftp u*****.your-backup.de and i see ...
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459 views

UFW: block all traffic for port 3306

How can I block all traffic for just one port? Take the following situation: Ubuntu Desktop VM Browser has access to internet (port 80 stays open) Ubuntu update services work normally (may not be ...
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131 views

Can't Reinstall Grub on Ubuntu Server 12.04

The bootloader seems to exist only on the flash drive (/dev/sdb in my system). I've been looking at posts on superuser, but none on them seem to be working. Computer (Zotac ZBox) will not boot ...
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303 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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692 views

ActiveMQ on Ubuntu 12.04 reports “not running” but it is running and listening to it's port… why could that be?

I installed ActiveMQ on Ubuntu using the command sudo apt-get install activemq which seemed to work fine. Then, I activated a configuration by copying the sample configuration provided with the ...
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256 views

Every time I ping one of my Ubuntu VMs from another VM I get a different IP resolved.. how could this be?

Every time I ping one of my VMs from another VM by hostname I get a different IP address resolved for it... Both VMs are Ubuntu 12.04 running on VMware Workstation 10. All VMs are running with ...
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37 views

SED basic substitutoin is not working

I am on ubuntu 12.04. Following expression: echo abcd123 | sed 's/\([a-z]*\).*/\1/' is supposed to get result as "abcd". But I am getting "abcd123". WHY?? Using following site as SED tutorial: ...
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104 views

Adding a complicated launcher to the “Open With” list in Ubuntu

I have a complicated shortcut/launcher that I would like to put in the Open With list. The shortcut uses the command screen -d -m bash -c "screen;source /home/me/intel/bin/compilervars.sh ...
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315 views

New OS and WebCam black and white only?

I have a Lenovo ThinkPad Edge E520 (1143) which I bought without an operating system. Back then I installed Windows Vista and then Ubuntu...I don't remember exactly in which OS I did it, but I changed ...
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519 views

How to use Hardware RAID in Ubuntu Server

I have an Adaptec RAID-Controller and created an RAID-1(Mirroring) succesfully. Now I have installed Ubuntu Server 12.04.3. When I type fdisk -l I get this output: bf@fileserver:~$ sudo fdisk -l ...
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185 views

How do you start multiple node.js apps using forever and upstart?

I'm managing multiple node.js processes using forever, and I need them to start at boot time. I think that upstart should be used for that, but I'm not sure whether I should create one init script per ...
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41 views

How does one adjust cmus' volume properly?

I'm using cmus 2.4.3 on Lubuntu 12. Even when I turn down the volume to 0, it's still too loud. How can I fix this?
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253 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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80 views

Ubuntu not detecting WLAN interface after removing and reconnecting WLAN card

I have a web server running on Ubuntu 12.4. It is connected to Internet through WLAN interface, earlier it was connected and working perfectly and listed as wlan0 under network interfaces. I removed ...
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691 views

Problems in detecting pendrive

I have this problems when I insert my pendrive. It is very slow in detecting it (3.0 and 2.0 port). I'm using uBuntu 12.04.3 x64. It requires me to wait for minutes to finally detect it. Is there any ...
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119 views

When HDD becomes full, how to create a symbolic link to the data store on another disk?

I have a Linux Ubuntu machine which has an X GB hard disk. There is folder, say, /opt/software/data. The disk /dev/sda1 is almost full and I have attached another disk at /dev/sda2 which is mounted at ...
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4answers
2k views

localhost as hostname confusion

I have a basic understanding about hostname and FQDN. Now I am confused, do I really have to specify a name for my hostname? So for example: Hostname: somename Domain: mydomain.com FQDN: ...
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2answers
9k views

how to burn a windows.iso to my USB flashdrive in ubuntu 12.04 LTS

I am using a Dual boot system with windows 7 and Ubuntu 12.04 LTS. My windows recently crashed with the error "BOOTMGR CANNOT LOAD IMAGE CORRUPT" after i installed a mac theme. So now i downloaded ...
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11 views

Bios boot selection remove

BIOS boot selection menu auto comes when kept some script on start-up before login. Adding as per below command. added script in /etc/init.d/. update-rc.d Myscript defaults
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244 views

How to ssh between a cluster of Vagrant guest VMs

I have 3 Ubuntu 12.04 VMs configured with bridged networking and setup with Vagrant. I can access all of them from the host using "vagrant ssh", but I can't figure out how I connect from one guest VM ...
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461 views

Vagrant does not assign correct gateway

I have created with Vagrant a brand new VM running Ubuntu 12.04 Since I need to access the VM always at the same IP address I have assigned to it a MAC address and set my DHCP in order to assign the ...
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108 views

What are the supported wifi dongles for Ubuntu Precise?

I've been searching for a long time and just get led in confusing directions. Where is a list of support WIFI USB dongles for Ubuntu 12.04 on the Beaglebone Black. I've ordered 2 already and can't ...
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Configuring Ubuntu 12.04 so that it recognizes the recently installed icc compiler

I have an Ubuntu 12.04. I installed the icc compiler (composer_xe_2013_sp1.0.080) but when I try to compile using it I get the message : icc : command not found. I've read somewhere that when you ...
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Ubuntu Nautilus not displaying removable disks

One day I messed up with some settings of Nautilus and as a result when ever I insert a pendrive/removable disks it says "No application is registered to open this file type" though the pendrive in ...
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8answers
68k views

Why Virtual Box won't give me option to create 64 bits guests?

My host is x64 bits Windows 8.1. I downloaded the latest Virtual Box (4.3) and I'm trying to create a VM with a 64 bits Ubuntu OS (ubuntu-12.04.3-desktop-amd64). When I go to New VM wizard, it ...