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

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External Hard Disk Connectivity in Ubuntu

I have connected an external hard disk to an Ubuntu Desktop instance running on VMware workstation on my Win 7. I connected the hard disk using the VM -> Removable Devices and connected the hard ...
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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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Cannot set 16:9 resolution on ubuntu 12.04 run in VirtualBox

I recently installed virtualbox. I tried to run ubuntu 10.04 and it worked fine in fullhd resolution. Then I installed Ubuntu 12.04 and now when I to setup up any fullhd resolution UI becomes very ...
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VMware vmplayer failing to launch VM on Ubuntu: “Could not open /dev/vmmon”

I get the following error when trying to launch an ova VM using VMPlayer on Ubuntu 12.04 Could not open /dev/vmmon: No such file or directory. Please make sure the kernel module 'vmmon' is loaded I ...
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Ubuntu 12.04 suddenly cannot connect to WPA2/WPA Personal protected connection. Windows 7 can

I have a laptop with Windows 7 and Ubuntu 12.04. I have a Cisco E1200 and when I set it up, it created 2 SSIDs. Let's name them: MyConnection (WPA/WPA2 personal), and MyConnection-Guest (no ...
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“Caller rejected because extension not found” in asterisk

I'm an asterisk newbie and I've just installed it on my ubuntu 12.04 server with sudo apt-get install asterisk. I'm following the tutorial for asterisk from here: ...
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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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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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676 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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Postfix SMTP SSL config: Can't send email but can receive it with SSL

I am trying to finish configuring my postfix/dovecot mail server that sits behind my home's router/firewall. I'm on Mint/Ubuntu 12.04. I'm close. I can connect/retrieve emails via SSL but can only ...
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How do I set a http-interface password on VLC 2.x?

I'd like to set up a password for my VLC's http interface server. I'm using VLC 2.x on Ubuntu Precise. How do I set this up? I see numerious mentions online of it being possible. Ideally, I'd like ...
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896 views

How do I share external hard-drives between host and guest in VirtualBox?

I'm running VirtualBox 4.1.14, host is iMac OS X 10.7.3, guest is Ubuntu 12.04. I want to share folders between the two, ideally access to external hard-drives that are my storage for the Mac. Have ...
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Problems with apt-get(unmet dependencies)

I am using Ubuntu Desktop 12.04(64 bit). I have downloaded skype from the official website and opened the deb package from the terminal(sudo dpkg -i skype-ubuntu-precise_4.1.0.20-1_i386.deb) but ...
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26 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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129 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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295 views

How to use apt-cache server in ubuntu 12.04?

I have tried this Apt-cache server on ubuntu 10.10, and it worked. But, now i'm using ubuntu 12.04 and all tutorial inside that page not working for me : Ign http://136.198.117.4 precise/main ...
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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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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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51 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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Running Cronjobs as per Local Time rather than Universal Time

On running dpkg-reconfigure tzdata in terminal and i get 2 different time on my machine Local time is now: Wed May 1 11:58:55 IST 2013. Universal Time is now: Wed May 1 06:28:55 UTC 2013. ...
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How to log out current user?

I'm very very new to the linux world. I have just installed Ubuntu 12.04 and I was wondering how to log out my user using the terminal. I searched the web and all the sites say that I should run the ...
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41 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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763 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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Dropbox on NFS-mounted folder

I am using Dropbox on my Ubuntu box with the Dropbox folder being present on a drive mounted via an entry in /etc/fstab. I am encountering slight annoyance after each reboot. When I log in, I get ...
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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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8k views

Google chrome dependency error - libnss3

I downloaded the .deb file from Google chrome website. Then started installing. But suddenly the software center shows a dependency not satisfied error. Some thing like given below. Dependency not ...
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2answers
2k views

How to control the height of the title bar in xfce?

How can I control the height of the title bar in xfce? I only have medium experience with linux desktops, I could change some settings in a text file or install a package, but an instruction that ...
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145 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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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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318 views

The spacebar on my new microsoft keyboard 4000 is acting crazy, what's causing it?

This Microsoft Ergonomic 4000 keyboard is practically new, less than a month old, and today out of nowhere when using Ubuntu the spacebar stops working. At first I thought it might be the occasional ...
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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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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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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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How can I remove the ssh last login info?

Whenever I log into a server using ssh. The prompt gives me "last login" information. I was wondering where this information comes from. How can I remove this record so when someone else log into the ...
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How to disable EMACS - Prelude colors? (terminal)

I've used PRELUDE to work better in terminal, but I'd love to work with my default Terminal theme(colors). Zenburn-theme comes default with Prelude but It just work great the first time i run emacs ...
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How to rename LVM volume?

Is is possible to rename an LVM volume? I would like to rename local0 to vm Device is /dev/mapper/vgdata-local0 I'm using Ubuntu 12.04
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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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Install public key via ssh-copy-id for other users

ssh-copy-id can be used to install your public key in a remote machine's authorized_keys. Could the same command be used to install other users' public keys, if you have sudo ability? Update: both ...
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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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WARNING: gnome-keyring:: couldn't connect to: /tmp/user/1001/keyring-Zk1QcF/pkcs11: No such file or directory

I've looked at several of the gnome-keyring-daemon answers and couldn't figure out how to relate any of them to my problem. Whenever I run certain programs (say mutt), I get the above error when I ...
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Permission denied (publickey,gssapi-with-mic) when cloning Git repo

I was cloning a Git repository and I had copied my id_rsa key from another PC to my /home/me/.ssh/ on Ubuntu 12.04, however this error shows up: Permission denied (publickey,gssapi-with-mic). ...
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8k views

How to whois new TLDs?

How can I look up new TLDs, such as .email, .guru, etc., using the whois command in linux? Running whois on a new TLD only gives the response: No whois server is known for this kind of object.
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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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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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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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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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Wired USB mouse is not working on login screen after updating to Ubuntu 12.04

I have installed Ubuntu 12.04. After updating it, my wired USB mouse stopped working on the login screen itself.
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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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1k views

Push entire account from one IMAP server to another IMAP server

My institution recently reshuffled our email accounts. I'm forced to shift years worth of carefully currated email (= more chaos than a 3 year old's birthday party) from IMAP account_old to IMAP ...