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

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I want to start VM for specific time

I am designing a system in which lot of VMs are there which run on KVM. My physical resources are limited, that is why I want to allow some of the VMs to run for some specific time(say Every Wednesday ...
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35 views

shifting between windows in byobu corrupts putty scrollback

I use byobu-screen through putty. when i use multiple windows and shift between them. the scroll back buffer of these windows gets intermixed, losing the whole purpose of scrollback. I dont want to ...
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99 views

Enable OpenGL on Ubuntu 12.04 LTS

I'm running Trisquel Mini 6.0.1, which is based on the repos for Ubuntu 12.04 on a netbook. I have a lightweight game that I'm trying to run written for the love interpreter, but it fails to ...
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17 views

How do I install a driver from a usb on 12.04 ubunu?

I have a Dell Lattitude e6400 with ubuntu 12.04 and I downloaded a driver for my Broadcom wifi it is on my usb drive and I also put it on my desktop...how would I install it from either source (the ...
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68 views

Wrong apache configuration. Perl scripts cannot execute

I've got wrong apache configuration. My script don't want to be executed and browser trying to download it as a file. <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName president.com ...
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39 views

Ubuntu server VMs having network issues after VLANing in VMware

Running ESXi 5.1 and vCenter. I recently segmented my network into smaller VLANs and enabled tagging on the vSwitch as well as the physical switch ports. Moved variety of VMs, Server 2008, RHEL, ...
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21 views

Change the DNS servers whilst retaining dynamic IP for Ubuntu 12.04 LTS

The example below requires the end point device has a static IP address using the file /etc/network/interfaces What if there was a need to continue using dynamic IP addresses but static name ...
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778 views

Unable to find PORT name in ubuntu 12.04

I am writing a code for serial programming in ubuntu 12.04. I have connected a usb to serial converter with my usb port. Now I want to know On which port I have connected my usb ( for example COM12 ...
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46 views

Trying to upgrade Ubuntu 12.04 LTS to 14.04 LTS inside Virtualbox results in a divide by 0 error

Attempting to upgrade a 12.04 LTS guest on a Windows 8.1 host results in the following error. Is there a workaround? This is on Virtualbox 4.3.14, the newest release. This error is very strange, ...
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63 views

USB drive stopped working

My USB pen drive (A-data UE700 64GB) suddenly stopped working. I tested it on few PCs (every one with Linux) and it doesn't work on any of them. The device isn't even mounted. It used to work alright ...
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83 views

ldap_bind: Confidentiality required (13)

I want to configure ldap with ssl so I used openssl for certificate and when I enable olcSecurity tls=1 in /etc/ldap/slapd.d/cn=config.ldif and now when I try to use ldapsearch or try to login it ...
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26 views

mouse button #7 not detected by Linux

Under Ubuntu 12.04, the command xev sees all 9 buttons of my mouse, except for n.7, i.e. scroll right. Is there a way to fix this? I don't think it's related to xorg.conf
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106 views

Ubuntu Samba Windows LogIn Failed to retrieve share list from server

I am part of a small Windows7 & 8 network of about twelve machines, all of which have been configured mostly by me to share folders with "Everybody". The machine that doubles as a File Server, ...
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32 views

no user-switching option in Ubuntu 12.04

Some time ago, we got several new Ubuntu 12.04 machines at work for various purposes. To make things more manageable, I created multiple accounts for the different users that will be using the ...
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32 views

Zorin6.4 core ubuntu software center will not open

Ubuntu software center will not open. Last time it was open it said it was conducting a search. Reboot and still conducting search. Synaptic center says unable to get exclusive lock' Lubuntu software ...
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33 views

why linux checks disk after shutdown -h

if I give the command sudo shutdown -h +2 or edit my crontab in a similar way, at reboot Ubuntu 12.04 checks disk for errors: is this behavior correct? is there a way to avoid it? Note that this ...
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49 views

I want backdoor access via intranet but none via internet - easy solution?

I see my new server has two cards and wonder if I can plug the internet into one and an intranet into the other. I only want access to the OS and program files and MySQL from the intranet side. ...
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26 views

Ubuntu - how to find live usage of port numbers

I am trying to debug a problem with a apache server, wherein I need to find the application that uses a particular port number. I tried using netstat, but didn't help. The scenario is that I am ...
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38 views

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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36 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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59 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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30 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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49 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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453 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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64 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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159 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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48 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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207 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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89 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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162 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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1k 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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274 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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291 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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49 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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42 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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870 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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49 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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19 views

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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1answer
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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114 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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138 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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422 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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42 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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93 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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95 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 ...