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

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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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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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8 views

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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17 views

Edubuntu stuck on installation

I've had this problem using multiple discs on multiple drives on this one computer. I'm trying to install edubuntu 12.04 on an old desktop. It boots to the disk, I select english and then "install ...
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Why are my windows occasionally going white in Ubuntu? [migrated]

I'm running Ubuntu 12.04 LTS on a Lenovo ThinkPad W510. Occasionally, my system will enter this state in which the chrome of the application "disappears" and becomes white. It will then sometimes ...
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32 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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11 views

Is it possible to modify debian package file path in preinst

I am creating a simple package out of a directory. I need to modify the the destination where the files of the package will be deployed.The package directory looks like this debian/DEBIAN ...
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24 views

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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75 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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36 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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29 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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Ubuntu 12.04 can't log into graphical user interface

Somehow when I update packages, I lost the graphics driver installed in my system, and it now only logs me into tty1. when I press Ctrl + Alt + F7 the cursor blinks at the top of my screen and nothing ...
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35 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 ...
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14 views

How to Install Windows OS if Already have Ubuntu 12.04 Installed [duplicate]

I have purchased a dell laptop with Ubuntu Linux 12.04 installed in it, and I want to install Windows Operating System on Ubuntu and have dual booting. That is, to install the Windows OS in the ...
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52 views

Permissions Denied - After successful connection as 'root' ONLY when connecting externally

So, I have been using Ubuntu Server 12.04.01 for the past couple of weeks after using Ubuntu Desktop 13.10 for about a couple of months and find it a refreshing start after switching over from the ...
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I am not able to access a shared folder data from a remote IP address

File file = new File("//192.168.1.100/sharename/sharefolder/User2.jpeg"); System.out.println(""+file.exists()); I am not able to access file named "User2.jpg" available on given IP address from Java ...
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74 views

VLC MMS video via network - stutters

I'm using VLC to play a MMS video (1.5X speed) that is streamed from a "members only" website. The video works great except that it hangs/stutters every few seconds. So I increased the following ...
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33 views

Harddisk reinstalled - can data be recovered?

We have a laptop here which had Ubuntu installed on it. When it came back we removed the old partitions, created a new one and installed Windows 7 on it. This install is still fresh. Will it be ...
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How to reinitialize processor for /sys in Linux

I have upgraded my laptop from Intel Pentium P6100 to Core i5-460M. i5 supports Turbo Boost. To switch this on/off I need to do: echo 0 or 1 > /sys/devices/system/cpu/cpufreq/boost But my System ...
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68 views

how to monitor network/cpu/memory/disk usage by each Rails app

I run many Rails app on linode VPS I want to charge my customers by their usage, Is there anyway to monitor each Rails app's usage ? I need these information network/cpu/memory/disk usage Any ...
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745 views

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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25 views

Change service apache2 on linux

I'm on ubuntu 12.04. The default exe location for service apache2 (usage ex: sudo service apache2 start) currently points at /etc/apache2/bin/httpd, but that will not modify the current running ...
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24 views

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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100 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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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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Ubuntu 12.04.5 - unable to connect to internet

I have just installed ubuntu 12.04.5-desktop-i386 However, i am unable to connect to the internet. Also, do i have to download packages? Any other info needed? Please do ask. Thanks!
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Error: Unknown Puppet subcommand 'module'

It seems there is a problem with puppet on Ubuntu 12.04 LTS as its missing the module subcommand as follows: Installed puppet in version 2.7.11 $ puppet module install rafaelfc-pear Installing ...
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Does dd care when cloning from smaller hdd to bigger hdd?

Does DD care about hard drive size? I currently have a smaller 500GB HDD that i want cloned to a 1TB SSD. Will it clone without a problem relating to size? will there be non partitioned space? was ...
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33 views

logind.cof file in ubuntu 12.04?

I have heard that the logind.conf file should be in /etc/systemd/logind.conf. however, it doesn't appear there, and a file search reveals that it isn't ANYWHERE. So what file replaces logind.conf, or ...
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No internet on Ubuntu server static IP running within VirtualBox after switching Internet Providers

I have switched Internet Providers recently and for some reason I now get no internet connection on my Ubuntu server 12.04.2 LTS VM running within VirtualBox. My host machine is Win7 64b. I do get an ...
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70 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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How to Install Windows8 with Ubuntu on laptop?

In my laptop, I have installed Windows 7 with Ubuntu 12.04LTS. Now I need to replace Windows 7 with Windows 8 without formatting Ubuntu. Is it possible to do?
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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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33 views

Need to setup ubuntu server files secure

I have a Ubuntu 12.04 server. On that we have some projects which are shared with Samba share. I need to protect our files to be copied from there by other users except by a superuser or root for ...
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788 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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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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Why isn't “(ulimit -d 1000; firefox) &” working?

I'm trying to limit the memory usage of firefox to prevent it from stalling the whole system with problematic web sites. I tried, in bash: (ulimit -d 1000; firefox) & This should limit the ...
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85 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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56 views

Ubuntu12.04 crashed while trying to install Ubuntu14.04, no longer have access

My desktop crashed. It's a 9 year old Compaq SR 1650NX, AMD Athlon 3500+ probably 1 GB RAM. Was running Ubuntu 12.04... was attempting to upgrade to 14.04, not sure if I interrupted it. Pretty much ...
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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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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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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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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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27 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 ...