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

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Ubuntu netinstall hangs with local mirror

I have a PXE server with Ubuntu installations, all of them use a preseed config file that point to a local mirror. Problem is, whenever the installation start downloading files from the local mirror ...
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26 views

How to know how much (and which) data I have lost after disk failure

One of the disks in my cluster (with a RAID 5) died last week and I had to replace it. After a rebuild and a consistency check, some data belonging to different users were lost. I need to know exactly ...
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Terminal lines intermittently invisible or corrupt on Ubuntu 12.04

I am running gnome-terminal under Ubuntu 12.04 and I have a weird problem that I haven't managed to find any info on. Whenever I type a command, the resulting output is frequently - but not always - ...
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72 views

Cant Locate MySql History File [closed]

I need to find a sql users password, I cant reset it. All i know is that there is a mySql History file containing this information. On ubuntu 12.04
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28 views

Accidently deleted Windows, have Ubuntu installed but can't run

So this is my problem: I put Ubuntu on a USB stick with the usual method. I then restarted my computer and went into the BIOS menu (HP press F10) and switched USB to the top of the boot order. It ...
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46 views

My Laptop has still some Linux in it?

I installed Linux Ubuntu a few days ago. I realised it was a bit overrated and decided to go back to windows. I created a bootable USB stick of Windows 7 on the the same system(Ubuntu). I successfully ...
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16 views

BeagleBoard xM with ubuntu 12.04 and opencv slow with face detection

I have an issue and I would appreciate it if someone could help. I am running ubuntu 12.04 on a beagleboard xm. I have also installed opencv. Now I need to run an application which performs face, eyes ...
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160 views

ubuntu 12.04 su fails : cannot execute /bin/bash no such file or directory

After adding a user as sudoers as, su to this user fails with error message: Cannot execute /bin/bash : No such file or directory I googled and found a lot of similar issue, mostly due to ...
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29 views

unable to install gnu parallel in ubuntu 12.04

Travis CI is using Ubuntu 12.04. I want to install GNU Parallel on it and used to be able to with sudo apt-get install parallel but now am not able to. What do I need to do? Do I need to compile it ...
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47 views

How do I upgrade PHP progressively over several websites on a single server?

I have a set of PHP-based websites hosted on a single Linux server that I need to upgrade PHP for. However, as some of the sites are QA / staging and others are production, I need to do this ...
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81 views

streaming camera video to server using motion

I have a DLINK DCS 930L IP camera. I am using motion software right now to stream the video and also record video from the camera. But, now it just streams video to the local network. in the ...
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3answers
201 views

Ubuntu 12.04 and Lenovo E450 Wireless Card

I have Lenovo Thinkpad E450. Just now I installed Ubuntu 12.04 LTS(64Bit). Problem is Wireless card is not detected on this Ubuntu, only wired internet is enabled and working fine. So please help me ...
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Ubuntu 12.04.5 erroneously applies static IP to all interfaces

First, I'll start by saying this is a virtual machine in VMWare Player and I’m using Ubuntu 12.04.5 instead of the newest version of Ubuntu because it’s being used in an educational environment to ...
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588 views

How to switch PHP 5.5 instead PHP 5.4 in Bitnami

Details: Distributor ID: Ubuntu Description: Ubuntu 12.04.5 LTS Release: 12.04 Codename: precise Bitnami used in AWS I want to install PHP 5.5, so I do next step: php -v PHP 5.4.26 ...
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18 views

apache2 overwrites lighttpd

I have Ubuntu 12.04 and lighttpd web server installed. Every time there is an update to apache2 package it overwrites my /var/www folder and removes lighttpd from startup. After the update to apache2, ...
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43 views

Cron expression hour 1/12

I'm looking at a system where someone added a cronjob which schedule is like this: 0 1/12 * * * doSomething More commonly, if the hours part in the schedule were */12 then it would execute every 12 ...
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1answer
141 views

Can not access Hard Disk from Ubuntu 12.04 live CD

I am new to Ubuntu. I have installed Ubuntu 10.04 . OS is corrupted in my system and can not boot. I just go through recovery mode and upgrade my OS but still i can not boot. Using Ubuntu 12.04 Live ...
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86 views

Computer boots to black screen in Ubuntu 12.04 after trying to fix “The system is running in low-graphics mode”

I was trying to install the GHMM packages in Python. I followed the instructions in The General Hidden Markov Model library. After that I followed their procedure: sudo apt-get update sudo apt-get ...
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I have created an user in ubuntu cluster, cannot login to the other nodes using the same credentials

#ssh -v atmos3 ......................... ...... debug1: Trying private key: /home/sghimire/.ssh/id_rsa debug1: Trying private key: /home/sghimire/.ssh/id_dsa debug1: Trying private key: ...
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Ubuntu 12.04 Dual Monitor Worked but not Working Now

I'm using NVIDIA GT218 and unable to see my monitors in "Display Settings", following info might help # lspci 00:02.0 Display controller: Intel Corporation Device 041e (rev 06) 01:00.0 VGA ...
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23 views

Unable to access newly created software RAID array in Ubuntu Desktop

please assist me with the following problem. I already have an Ubuntu Desktop 12.04 box into which I have added 2 500GB drives in the hopes of wring them up in a RAID-1 configuration for simple ...
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3answers
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What is the standard ftp service of ubuntu server 12.04?

Stopped vsftpd, so it is not that. If i can still access via ftp (sftp in particular) how do i now what service is managing it?
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120 views

Install windows7 and ubuntu 14.04 on a computer which already has windows and ubuntu 12.04 installed

I have installed windows 7 and ubuntu 12.04 in 2 separate partitions in my machine and I can access both using the GRUB. Now I want to re-install windows 7 and ubuntu 14.04 to my machine. What is the ...
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2answers
412 views

How to create a virtual machine from a bootable USB?

I need to take a live USB, that has Ubuntu 12.04 and a ton of customization on it, and create a virtual machine in Virtualbox from it. I ultimately actually want to get this installation up to Google ...
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807 views

Connect to VPN when `wicd` delivers the internet

wicd and nmcli conflict, so how can I get onto a VPN if not through nmcli con up?
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133 views

How to run a command a command as root on startup (Ubuntu)?

I'd like to run a bunch of commands automatically on boot with root on Ubuntu 12.04 (for instance a mount) I tried to put them in /etc/rc.local but didn't work. Thanks
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34 views

Ubuntu 12.04 unable to install gfortran

I am trying to install gfortran from the terminal, but I get this error E: The package libc6 needs to be reinstalled But I can't find an archive for it. Also, the Ubuntu software center pops up and ...
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41 views

nm-applet thinks I'm offline

I got on wireless with wicd-curses, but nm-applet thinks I'm disconnected. What I'm really trying to do is get on my VPN, and I usually do this through nm-applet. It doesn't want to let me on VPN ...
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51 views

How to keep a youtube playlist going with the screen locked on Ubuntu 12.04?

If I lock the screen (not suspend), YouTube pauses automatically at the moment and I'd rather it didn't.
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3k views

How to uninstall flux on linux?

Flux is a lighting app which malfunctions on my laptop. I tried sudo apt-get remove flux in the terminal, and it responds with "the package doesn't exist".
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136 views

Jenkins slave is not using ccache

My Jenkins connects to its slave (Ubuntu) via SSH. I followed all possible instructions on installing ccache on the slave, I put "export USE_CCACHE=1" in every possible place, I have linked compilers ...
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2answers
71 views

w3m keeps auto-refreshing

When I run w3m 'google.com/search?unicode+smiley' the page does load correctly, but it keeps refreshing every 0 seconds until I hit CtrlC. I don't think I changed any of my w3m settings and this is a ...
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21 views

Where does mutt save email while you're writing it?

I was in the middle of writing an email when my computer shut down. I had already :w saved it, but not :wq saved-to-drafts. Where should I look for the partial email? This is on Ubuntu Linux.
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Where else are vim config files stored besides ~/.vimrc and /etc/vim?

I somehow (a long time ago, probably playing around with Rvim) made a keyboard shortcut which I now want to get rid of. The problem is, I have no idea where the config file that has nmap _ <- is. ...
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1answer
227 views

Simple Nginx config doesn't work

I am a developer with absolutely no server experience, this project I'm working on is my first foray into the world of servers. Basically I have to host an API online, on a Linode server running Nginx ...
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147 views

Apache not working after an Ubuntu server upgrade from 10.04 to 12.04

I’ve just upgraded a server from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS given the imminent end of support for 10.04. The upgrade went fine; I have already tested it all with a virtual machine ...
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How to run update-initramfs from bootable usb?

My computer froze during an upgrade from ubuntu 12.04 to 14.04. This resulted in a kernel panic upon reboot. /sbin/init: relocation error: /lib/i386-linux-gnu/librt.so.1: ...
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573 views

ansible playbook handlers not starting nginx service through notify statement even when changed is true

I've started trying to learn how to use Ansible. I'm following an Ansible Tutorial from Servers for Hackers, and I'm trying out the examples on a VirtualBox virtual machine running Ubuntu 12.04.5 LTS ...
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43 views

How to handle log analysis from several servers? [closed]

I’m stuck which way to go with log analysis. I have a bunch of small VM’s (web + database server) running with Ubuntu 12.04. Right now I log weekly into each machine and grep system logs and Apache ...
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137 views

Someone is uploading stuff from my pc

I am getting very slow Internet experience. In vnstat I see rx: 4 kbit/s 3 p/s tx: 94.74 Mbit/s 14072 p/s^C eth4 / traffic statistics rx ...
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22 views

How to set ownership/permission of PHP site that accessible by the user AND the apache user

I'm having problems with my PHP projects within /var/www set on permission www-data:www-data. My user can't write to these directories. I've added myself to www-data group and have added chmod -R ...
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160 views

SSH key forwarding not working between MinGW and Ubuntu VM

I've read a great deal of similar issues, but haven't yet found the answer. SSH forwarding between my MinGW (Windows 7) host and an Ubuntu Precise VM, provisioned with Vagrant, is not working. ...
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163 views

Why does fdisk show sda, sdf and sdg but seems to skip sdb, sdc, sdd and sde in Ubuntu?

It is my understanding that Linux will list hard drives using alphabetical ordering and partitions as numbers. On a machine I am working on there are 3 drives but fdisk lists them as /dev/sda, ...
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119 views

Can not login through “ubuntu” option but can login through “ubuntu 2D” option

My system is Ubuntu 12.04 LTS. Since updated, every time I input the right username and password and hit enter using Ubuntu entrance, I got bounced back to the log screen. But other entrances are ...
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400 views

command executed in nohup is killed as soon as the putty terminal is closed

I have an Amazon ubuntu ec2 instance I'm using PuTTY to access the same. Here, I have a large database in mysql. I'm executing the following command to take the backup of my database. nohup ...
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how to create a send file between shared folder in Windows 7 and Ubuntu-directory doesn't exist

I am trying to create a shared folder between Ubuntu 12.04 server running on vmware and my Windows 7 desktop which is hosting it but I keep getting errors telling me that the directories do not exist ...
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689 views

“No space left on device” when writing to NTFS on Ubuntu

I'm on Ubuntu 12.04 and want to backup data to my external hard drive which is NTFS. When running cp -rp or rsync, I get no space left errors like this: `rsync: mkstemp "/media/Expansion ...
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235 views

Ubuntu-Rescue Remix Does Not See Hard Drive

I am trying to copy over data using the Ubuntu-Rescue Remix bootable cd but this cd does not see my hard drive! What can I do so that the URR is able to see my hard drive and I can save my data? I ...
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249 views

Device Is Busy When Trying To UMount

I am using the Ubuntu Rescue Remix and Ddrescue. I am in the process of creating a RAW image onto a 'good' drive (sdc) from a 'bad' drive (sdc). I used the command sudo ddrescue -r 3 /dev/sdb ...
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62 views

Computer slow after plugged into wrong voltage

So I set up a desktop computer running ubuntu in a classroom that was running through an AVR at 220 volts. I got a report that it wasn't working, so I came to look at it, and sure enough, fans and ...