Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Will go End Of Life (EOL) April 2017. Only use this tag if your question is version-specific.

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Login infinite loop - 12.04 works well but 14.04 has login infinite loop issue

Chip: Intel Pentium N3700 Host OS: 12.04 -> 14.04 On board graphic controller: Aspeed 2400 series The system worked well on 12.04 and when I installed 14.04 on the same board, it enters the ...
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99 views

a2enmod mpm_worker (ERROR: Module mpm_worker does not exist!)

I have ubuntu 12.04 box where I have installed apache using (apt-get install apache2) it install everything well then i need mpm-worker so i installed mpm-worker using this command (apt-get install ...
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98 views

How to VNC into current session, instead of creating a new one (from mac)?

I have setup my ubuntu machine to allow remote connections using the default "Desktop Sharing Preferences" panel, and then I used Mac's VNC viewer Share Screens to connect to it, and it works. ...
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1answer
25 views

vmbuilder and Ubuntu 14.04 LTS

I am trying to build a Ubuntu 14.04 image with vmbuilder like this: vmbuilder kvm ubuntu -o -v --suite trusty --arch amd64 --rootsize 9216 --user testuser --pass testpass --hostname test --addpkg ...
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19 views

Phalcon Installation Error - Ubuntu

I tried installing Phalcon in Ubuntu 12.04 with php 5.5. I have followed the same steps as in http://www.sitepoint.com/quick-tip-4-steps-install-custom-php-extensions-zend-server-7/. But after ...
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3answers
726 views

Error while installing Apache on 12.04 LTS

On Ubuntu 12.04 LTS server I need Apache 2.4.5 or greater. I do this: add-apt-repository ppa:ondrej/php5 apt-get update apt-get install apache2 But when I run the last command I get: Setting up ...
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19 views

squid server configuration issue

I installed the squid3 cache server in Ubuntu sucessfully and I configured squid.conffile (http access allow) and made http proxy ip changes in Firefox browser. Whenever I try to access something in ...
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14 views

Ubuntu crash after blacklist.conf change

After finding the error in my syslog Buffer I/O error loop0, I ran the following command sudo tee -a /etc/modprobe.d/blacklist.conf <<<"blacklist floppy" Initially after rebooting the ...
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31 views

12.04 LTS -> 14.04 LTS: An error occurred while restoring previously-installed applications

I'm attempting to upgrade an existing installation of Ubuntu 12.04.5 LTS to 14.04.4 LTS in a 5.0.10 VirtualBox VM. After several hours of attempting to get do-release-upgrade to find any new releases ...
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36 views

squid cache not working properly

I installed the squid3 cache server in Ubuntu sucessfully and I configured squid.conffile (http access allow) and made http proxy ip changes in Firefox browser. Whenever I try to access something in ...
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0answers
27 views

PFree is 0 on a drive that shouldn't be full

I run a ubuntu 12.04 Server mainly for Owncloud and haven't been able to use apt-get upgrade. When I ran sudo apt-get -f install it said there might be a problem with space in my filesystem. df showed ...
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67 views

packages ubuntu

i have problem packages ubuntu plz help me Reading package lists... Building dependency tree... Reading state information... Package libicu48 is not available, but is referred to by another package. ...
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48 views

Can't login to my account with neither gdm nor lightdm

What I've tried: I am able to login as myself via tty I can login as guest (graphical) Installing gdm and using that instead of lightdm (see title) ~/.Xauthority is empty and owned by me. .xsession-...
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0answers
16 views

squid caching problem

I installed the squid3 cache server in ubuntu sucessfully and i configured squid.conf file ("http access allow") and made http proxy ip changes in firefox browser. When ever i tried to access some ...
1
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1answer
62 views

Notification when Wifi disconnect

I run a script in terminal but sometimes wifi disconnects and script stops working. I am mostly away from the laptop, so is there a way to make me notify with sound when wifi disconnect? In ...
0
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1answer
31 views

grub error when booting ubuntu

I have 2 hard drives on my server and i have previously installed CentOS on one of the hard drives(not sure which but i am guessing the second) I install fresh Ubuntu 14.04LTS on the first one i ...
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1answer
30 views

Question about the RTAI and version Of kernel

I have a ubuntu 3.8.0-29 geniric and the gcc 4.6.3 . I will to install the RTAI , what is the version of kernel and the version of kernel to download ?
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59 views

LTSP failed to establish RDP connection

Could you please help me? I installed a ltsp server on a ubuntu 12.04 machine in order to use it as a thin client to connect to the terminal server of the company. i did installed ltsp-server ...
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1answer
44 views

Dropbox fail in Ubuntu 12.04

I tried installing Dropbox in Ubuntu 12.04 in the computer that is provided by my university. I do not have root privileges. I tried to install it through Ubuntu Software Center. When I did a reboot ...
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19 views

Upgrade to Ubuntu 12.04 and Networking will not work now

I had 10.04 Lucid and I updated to 12.04. After that I had network access for the first couple of days and then it stopped connecting. I went back to a previous version and it did connect the first ...
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1answer
26 views

I want an Ubuntu 12.04 whith Kernel 3.4.6

I could not find a copy of ubuntu 12.04 Where the kernel ia 3.4.6 . I want to download an Ubuntu 12.04 (kernel 3.4.6). Possible link to download.
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19 views

How to remove file with ????? permission [duplicate]

I am not able to delete files/folders as I see some files/folders with permission ??????. How to remove them? Files are sitting in share folder of my Windows/Ubuntu machine drwxrwx--- 1 root vboxsf ...
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16 views

upgrade 12.04 to 14.04 hung at ttf-punjab fonts

I have a fresh 12.04 lts system which i am upgrading to 14.04 while upgrading Distribution package is hungup at unpaking ttf-punjab fonts and it is not showing the list distrribution package window (...
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13 views

How do I install wireshark on Ubuntu 12.04 offline? [duplicate]

The target machine running Ubuntu 12.04 has no network access. I downloaded the 3 source files from here https://launchpad.net/ubuntu/precise/+source/wireshark and copied them to my target box. I ...
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53 views

apt-get -f install removed nearly everything

In an attempt to install some statistical software (SAS), I attempted to install virtual box while running in Ubuntu 12.04. I was unable to do so and prompted to use apt-get -f install which I did. ...
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1answer
53 views

kill all process greater than some process ID and match with particular name

I want to kill all google chrome process which is run via CRON. */5 * * * * export DISPLAY=:0 && google-chrome --app=http://localhost/runmysql.html so the process which has lower process ...
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2answers
56 views

Making a bootable 12.04 Ubuntu Image on a flash drive

Downloaded ubuntu-12.04.5-desktop-amd64.iso.torrent from http://www.ubuntu.com/download/alternative-downloads. Downloaded Universal-USB-Installer-1.9.6.3.exe from http://www.pendrivelinux.com/...
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1answer
113 views

Why SanDisk Cruzer Glide 8GB can't be made bootable by StartupDiskCreator?

I am trying to setup some USB drives to boot Ubuntu 14.04.4 or 15.10 from on my VAIO (Intel® Core™2 Duo CPU T6500 @ 2.10GHz × 2) using the Startup Disk Creator utility. After copying files from the ....
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1answer
60 views

Fix duplicate error sudo apt-get update .Help me!

I trying update security ... sudo apt-get update And faiel... Reading package lists ... Done W: Duplicate sources.list http://archive.canonical.com/ubuntu/ precise entry / i386 partner Packages (...
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1answer
41 views

Wireless Networks not showing up! [duplicate]

I am using Ubuntu 12.04. I am new to Ubuntu. When I click on the internet icon in the upper-right-hand corner, it doesn't show any wireless networks under "wireless networks." I went to Additional ...
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32 views

How do I remove a duplicated global application menu?

I encounter this event at least three times per day: Following a suddenly one second of black screen, a duplicated global menu will appear. I have to reboot to remove it, but this event will happen ...
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11 views

Migrate from logical volume to a physical drive

I have old Xen server which has machine created on a logical volume on the server, how can i migrate the machine to a physical system? Note: I can mount the logical volume via live CD
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105 views

Ubuntu 12.04 LTS : Unable to install php 5.6

I am trying to install php 5.6 on ubuntu 12.04 LTS. I am following the following steps : sudo add-apt-repository ppa:ondrej/php5 sudo apt-get update sudo apt-get install python-software-properties ...
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1answer
159 views

How to add 0.0.0.0 in hosts file before every domain in gedit?

When I add 0.0.0.0 i do it manually and it takes long time, how to apply in one step. for example i want block admedia.com and subdomains , i open terminal and type sudo gedit /etc/hosts, and put ...
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1answer
71 views

Cannot display this video mode on boot

I have googled around, but nobody seems to have found a solution for this problem. This computer will not boot to Linux cds, so i have installed ubuntu on a hard drive and then put the hard drive in ...
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78 views

How to run Wi-Fi direct P2P on 12.04?

Does the solution in the (old) post How to get wifi direct( wifi p2p) on my HP DM1 laptop? apply to 12.04 as well? I already have the wpa_supplicant v0.7.3 from the Software Center. iw list shows ...
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11 views

Ubuntu 12.04 Missing Taskbars!

I have no taskbars and im super confused, i just shut off my computer at school, and when im at home and i want to use it i have no taskbars for whatever reason. My desktop screenshot.
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133 views

No sound from inbuilt speakers from dell inspiron 15 3542 series ubuntu 12.04

I have dell inspiron 15 3542 series laptop with ubuntu 12.04 as operating system. Yesterday I had executed following commands from terminal sudo apt-get update sudo apt-get upgrade The above ...
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27 views

“The system network services are not compatible with this version” error on Ubuntu 12.04 partitioned through Samsung Chromebook 2

I recently partitioned my Samsung Chromebook 2 for Ubuntu 12.04. For some reason I can't use the internet in the Ubuntu partition because of a "SSL connection error." When I try to enter the Network ...
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1answer
3k views

Where is the junk folder that I created in Thunderbird on an ubuntu system?

I am using Thunderbird on Windows 7 to fetch emails from my ubuntu server. I found my mails being stored in /var/qmail/mailnames/domain.de/info/Maildir/cur but neither in /var/qmail/mailnames/domain....
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63 views

IPSec VPN connectivity from Ubuntu to AWS

I have configured the VPN gateway and related settings at AWS side. Now I have to connect to the vpn from my Ubuntu machine. I am using my android mobile phone to access internet into my laptop via ...
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29 views

Ubuntu 12.04 issues with Nvidia Driver

I'm running 12.04 on a Dell laptop, and I'm connected to an external Dell monitor. Graphics: $ lspci -nnk | grep VGA -A1 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G86M [...
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1answer
55 views

How install/unistall Xfce on Ubuntu 12.04 without uptade?

I would like to know how to install Xfce alongside unity? I'm running Ubuntu on a 2.66 GHz Intel pentium 4 machine, with 1.50GB RAM. Is fast really user ubuntu/gnome. I want very fast without problem ...
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34 views

enable parallel port interrupts/ access in Ubuntu 12.04

I need to interface a mid 1990s laboratory instrument to Ubuntu 12.04 for moderately high speed data acquisition ( 100 Usec) from the instrument . The instrument requires ( will not even run without )...
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2answers
130 views

Anyone else still getting Chrome updates on 12.04 64-bit?

I run Ubuntu 12.04 on a chromebook (ChrUbuntu) and have the Chrome browser installed. Upon opening Chrome, I get the message that it won't receive updates, and a link to Google's page which says ...
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26 views

redirect site behind load balancer

I have tried changing the /etc/hosts file to redirect the site to a specific server behind the load balancer. x.x.x.x sitename.com The sitename.com page is served by that specific server x.x.x.x ...
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159 views

How to install GCC-4.4.5 compiler in Ubuntu 12.04 64-bit?

I am using ubuntu 12.04 64-bit on VMwareFusion. Three packages have already installed: gmp5.0, mpc0.8.2, mpfr3.1.4, in gcc-4.4.5 and I followed the following steps. $ sudo ./configure --target=x86_64-...
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28 views

TCP session establish problem

I have multiple quagga instance running in lxc doing some kind of network simulation. BGP-protocol run fine between quagga containers. But when connecting quagga to Cisco ios, TCP-session which is ...
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49 views

Shift + Insert does not work in ubuntu

I am new to Ubuntu, I have installed Ubuntu on VMware and when I copy something from Windows and paste it on Ubuntu (using Shift+Insert) it does not work. Also, I am not able to ssh (ssh unknown ...
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1answer
176 views

Can not read file, either file does not exist or there are permission problems

I have installed moodle 3.0 in Ubuntu. When browsing web, it displays the following error: Can not read file, either file does not exist or there are permission problems How can I solve this?