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

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Can I mix sources from different ubuntu versions?

As we know that we are using Repositories for installing packages and repositories configuration file located at /etc/apt/sources.list. I am using Ubuntu 12.10 (Quantal Quetzal) which reaches End of ...
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31 views

my : RT3290 Bluetooth does not work after upgrading to 14.04.01 from 12 were it did work why?

As i mentioned i had blue tooth capabilities in 12 and it work just fine until i upgraded to day. However when I had installed U 12 it wasn't working out of the box then either. I had to use another ...
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1answer
20 views

Upgrade to ubuntu 12.04 failures [duplicate]

I upgraded my ubuntu to 12.04 through software center and it did not go well. The problem is I'm using this machine after a long time that I don't remember the previous version no (definitely greater ...
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17 views

And error message says “could not initialize package information” [duplicate]

And error message says "could not initialize package information" E:Encountered a section with no Package: header E:Problem with ...
2
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1answer
37 views

Printing PDF file doesn't work on a random basis

I have tried printing from Chrome, Firefox and Document viewer. On a random basis (means 20 papers go fine, 1 doesn't, 1 does, 2 don't, etc) instead of the file I sent to be printed, I get this: It ...
3
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0answers
256 views

How do I update to Ubuntu kernel 3.13.0 on 12.04 LTS without breaking the Nvidia graphics driver?

I'm running Ubuntu 12.04 "LTS" on a Lenovo W530 (Nvidia Optimus architecture) and updated the kernel to 3.13.0-32-generic as the version of the kernel I was running was going out of support, ...
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2answers
33 views

Can not connect to Ubuntu 12.04 server using SSH

Yesterday I have posted question for creating FTP users and set access permission. Here is the URL. Create FTP users with limited access only to home directory Ubuntu 12.04 Based on Answer I have ...
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10 views

Why do Installing Ati Radeon HD4200 on my Laptop would mess the things up?

So I have been using Ubuntu 12.04 as my only OS for the last six months and so far I have to tell is pretty good, easy to use, I like the interface and how it's so intuitive and very smooth and one of ...
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28 views

I need to change the graphics card depending on what I want to do

In the beginning of this year I bought a secondhand computer. The CPU is an Intel 3.4 GHz dual core and the GPU is an AMD RV410. I installed Ubuntu 12.04 on it, and it worked wonderfully, as usual ...
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1answer
24 views

Can I install 14.04 over pre-installed 12.04 desktop?

Can I install 14.04 over pre-installed 12.04 desktop on an ASUS X200CA notebook PC? And will the new version 14.04 replace the 12.04 version?
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2answers
37 views

Why is incorrect passsword check slow? [duplicate]

Observed it many times on many Ubuntu versions. If you type wrong password either in UI mode or in terminal, it takes little more time before it declares incorrect password. Correct password check is ...
0
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1answer
30 views

Upgrade fail 12.04 to 14.04

I made a horrible mistake and upgraded from 12.04 (dual boot Win7) to 14.04 DIRECTLY, and it failed and I am left with a scrambled screen which does not respond to anything. Any way I can recover my ...
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18 views

Help on Ubuntu for powermac G5

Here's my problem I have the powermac G5 tower. When I tell Ubuntu 12.04 to install I get to tell it to install the screen gos white then black. After in 2mins the screen is still black and the tower ...
0
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1answer
34 views

How to completely start from scratch with Ubuntu?

I have an ASUS notebook and it comes from factory with Ubuntu. I like Ubuntu and I do not want to change the OS. However, this notebook does not have a disc drive. It does have USB, but I do not know ...
0
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1answer
28 views

Unexpected PHP version 5.5.15rc1 from ppa:ondrej/php5

I've just upgraded from Ondrej's oldstable 5.4 to 5.5 package on 12.04 - which was smooth. The version installed is 5.5.15rc - I wasn't expecting the rc bit. Will an upgrade regularly include RC ...
1
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1answer
20 views

creating power group

I want to create a group that can run some privileged commands but not all. For example, a power user can access the home files (from one user to another), but it shouldn't be allowed to run apt-get ...
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3answers
106 views

Black screen after installing hardware support

I'm using Ubuntu 12.04.4 LTS on my VMware Player. Update Manager popped up this morning with a bunch of updates and I installed them and restarted the OS - I didn't face any problems at all. But I ...
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0answers
9 views

ubuntu 12.04 disable shutdown under the guest account

We have several computers used by the public, hence they use the guest account in 12.04. Is there a way to disable the 'shutdown' computer option as these computers are behind lock and key and if a ...
0
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1answer
20 views

Unable to create working installation media for Ubuntu

I have tried to burn versions 12.4 LTS, and version 14.04 LTS to a DVD and the last time it said the disk was verified, but when I open the discs there is nothing burned on them. The image for 14.04 ...
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1answer
44 views

Ubunut 12.04 freezes after yesterday's hardware package update?

I have a dual-boot Ubuntu 12.04/Win8 system running an Nvidia GeForce GTX 580 graphics card. All worked beautifully until today, doing the first boot after the Ubuntu update yesterday regarding a ...
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0answers
13 views

Need to reset root group

Accidentally changed the one user that had root access to another group. Need to know how to fix it. Know how to get on as root during boot up, but where do I go from there to correct my change.
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0answers
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Ubutntu 12.04 login error after change permission

I accidentally changed the permission of my root folder by running commands sudo -i chmod -r 755 / After i restart i can't logged in with any user, the login page bounce back even when i type the ...
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0answers
20 views

Boot and/or screen problems after each upgrade

After each upgrade my system does not come back. After today's upgrade I face the same problem again. Some cmos battery message and when it goes to the point that it should start loading the os it ...
1
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1answer
24 views

Access to different directories

I have recently moved to Ubuntu 12.04 and noticed that in some directories I can't even create a directory or file (e.g:/var/lib). I know about the command chmod, but is it appropriate to use it in ...
1
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1answer
35 views

Create FTP users with limited access only to home directory Ubuntu 12.04

I'm having Ubuntu 12.04 server and I have installed VSFTPD service for FTP. I'm trying to create a FTP user who has access only to /var/www/ directory and all permissions for sub-directories. ...
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54 views

Important installations failed

I have a new computer with ubuntu 12.04 LTS ready installed. I get a message telling me to install an important security update 'Linux kernel image for version 3.5.0 on 64bit x86 SMP, but install ...
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0answers
9 views

Can't run Ubuntu without installing

(First, sorry for my bad English) I want to install Windows with Ubuntu in my PC, but I have to do a partition of the disk, so first I needed a Live USB because I can't dismount the primal disk. After ...
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0answers
12 views

Password restriction is not working

I have two administrator accounts "magesh" and "test". I don't want "test" user to change my password in the UI. I have restricted it in terminal by giving the following commands in /etc/sudoers ...
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2answers
33 views

Is amd64 the only 64-bit version of Ubuntu 12.04 LTS desktop? [duplicate]

I need to specifically install Ubuntu 12.04 LTS Desktop on a Dell PowerEdge server. The main site allows you to download 14.04 LTS. So I followed this link to 12.04: http://releases.ubuntu.com/12.04/ ...
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2answers
30 views

How do I access network file share?

Ubuntu/Linux NU-B here. I have a physical ubuntu server sharing a folder and is accessible via windows GUI. I installed another Ubuntu Server under VMWorkstation as a Virtual machine and is on the ...
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19 views

Can't able to close all the terminals

I have UBUNTU version 12.0.4. Now I can't close any window(terminals) which I opened. How did I fixed this problems..?
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25 views

Unable to start Genymotion in Ubuntu 12.04

I am trying to start Genymotion in Ubuntu 12.04, but I am getting the following error : ~$ sudo lshw -c video *-display UNCLAIMED description: VGA compatible controller product: ...
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18 views

do-release-upgrade results in no release found [duplicate]

I am trying to get my 12.04.4 server up to 14.04 to be up to date but I can't get it to work. I have tried do-release-upgrade as well as do-release-upgrade -d and all I get is no release found. What ...
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1answer
44 views

Ubuntu 12.04 LTS crash after updating from software updater

I updated my system today and noticed that there was a hardware update as well. I've never heard of a hardware update but I updated anyway. System had to be restarted after update but I was ...
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2answers
41 views

No sound after updates in Xubuntu 12.04

After installing updates all my computer was muted. I have tried turning the volume up in gnome alsa mixer and I switched to pulse audio but nothing worked. Does anyone else who has encountered this ...
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0answers
24 views

12.04 LTS will not load [duplicate]

Ubuntu 12.04 LTS will boot to the log in. when I try to log in get message "failed to load session "ubuntu"". was ok till I removed some files to free up more memory. Know now that was dumb but now ...
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2answers
116 views

Ubuntu 12.04 - problem with nvidia drivers

I installed 12.04 LTS recently. I installed Nvidia drivers running the following in the terminal : $ sudo apt-get purge nvidia-* $ sudo apt-get update $ sudo apt-get install nvidia-current-updates ...
1
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1answer
91 views

ubuntu 12.04 kernel 3.13.0.30

I have a Dell Inspiron 15 with ATI graphics card. Everything was working without any problems until kernel 3.8. During the regular updates Ubuntu suggested to update to kernel 3.13.0.30. After that ...
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0answers
12 views

Lubuntu libdvdcss2 install-cs.sh not completing

Did an install of Lubuntu 12.04 a few days ago, and managed to get libdvdcss2 installed - all good, then I mucked up the installation because I'm a noob, and could no longer install Libdvdcss2. So, ...
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1answer
19 views

Unable to create custom debian package

We are trying to create a custom debian package and trying to create custom apt-get repository. For this we did the following: In ~ directory extracted the source file called ...
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1answer
10 views

linux-header 3.2.0-61 archive fail

thomas@ubuntu:~$ sudo apt-get dist-upgrade [sudo] password for thomas: Reading package lists... Done Building dependency tree Reading state information... Done E: The package ...
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1answer
19 views

Wireless not being detected at all 12.04 Inspiron 15R

I have a Dell Inspiron 15R that came preinstalled with Windows 8.1 I just installed Ubuntu 12.04 in dual boot and got it working. Now i cannot connect to wifi. I tried How do I install BCM43142 ...
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27 views

Reinstall Ubuntu 12.04 without losing data [duplicate]

I had tried getting propriety drivers for ATI Radeon HD 8670M card on Dell Inspiron 15 with pre-installed Ubuntu 12.04 LTS. However fglrx seems to have messed up the xorg files and I can't go beyond ...
0
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1answer
305 views

Hardware enablement stack install is giving dependency issues [duplicate]

I'm trying to install the hardware enablement stack onto 12.04 but I'm running into the following dependency issue: The following packages have unmet dependencies: libgl1-mesa-glx-lts-trusty: ...
0
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1answer
35 views

Ubuntu 12.04 - incorrect graphics information

I am checking my system settings, but see Graphics as unknown. I have Nvidia graphics card. I tried this answer, and ran : sudo apt-get install mesa-utils Now if I check it, instead of showing my ...
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0answers
13 views

Public key problem when updating

When I try to start the update manager, and install updates, I get this error: Requires installation of untrusted packages. This action would require the installation of packages from unauthenticated ...
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2answers
53 views

Ubuntu 12.04 - repeated booting problems

I have been having problems with my Ubuntu 12.04 LTS installation (dual boot with Windows 7). Whenever I install some update OR if the machine is stuck & I try to do a hard reboot, the OS never ...
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1answer
21 views

How can I identify the program that has written information to a log file?

I recently got a message that something had failed to sudo on my Ubuntu laptop. At the time, I don't believe I was running anything that would need sudo. The messages that appeared in ...
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0answers
10 views

how to compile uclinux on ubuntu?

I am configuring the uclinux in Linux ubuntu platform.After I make selection for the vendor and vendor product,it comes to a halt at the command window, but according to my user guide i have to still ...
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16 views

I get `error: unknow filesystem` on boot [duplicate]

I removed my Ubuntu partition, now when my laptop boots it just shows: error: unknown filesystem. I tried booting with a live CD, but I still get: grub rescue> error.