Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Will go End Of Life (EOL) April 2017. Only use this tag if your question is version-specific.

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71 views

How to remove file logicaly?

I have a file on my computer which was called just one.flv , I deleted this file but the problem here is that the icon of the file still appeared and when I try to do any operation on it from terminal ...
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0answers
141 views

Can't boot Windows 7 after installing Ubuntu 12.04

I installed Ubuntu 12.04 64 bit yesterday and now I can't boot my Windows 7. What can I do now ?
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1answer
71 views

Choose a suitable version of Ubuntu [closed]

I need to choose a suitable version of Ubuntu Where the computer is very fast. My computer information: Processor Intel Pentium 4 3.00ghz (2CBU) 2046MB RAM Which version is available to me 12.4 ...
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3answers
21k views

Ubuntu doesn't see my phone (Sony Xperia Tipo)

When I connect my phone Xperia Tipo to my Ubuntu 12.04, the USB icon does not appear in a launcher. lsusb gives me following results: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ...
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2answers
2k views

Ubuntu server reporting difference disk capacity than Virtualbox

Need help figuring out why Ubuntu is mis-reporting disk capacity on a VM. Just installed Ubuntu 12.04 Server LTS 64 bit on a Virtualbox (version 4.2.10) virtual machine. I also installed the Ubuntu ...
2
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2answers
110 views

rsyslog set 3 Access Points to log to same file?

I've been looking at examples of rsyslogs but most seems too programmer centric for me. I need 10.10.10.12, 10.10.10.13, 10.10.10.14 to get 1 shared log file. This gives me the log I want into my ...
1
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1answer
160 views

Is there a user-friendly setup to reduce performance and fan thresholds?

My Dell Vostro 4450 with Ubuntu 12.04 started heating (>95°C) when its on heavy load and charging battery (sometimes it freezes in this conditions). When on heavy load but using battery, it stabilize ...
1
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1answer
94 views

how can I reinstall ubuntu without internet connection

I was installing updates and ubuntu crashed. Now I don't have the internet connection anymore. How can I install ubuntu back without internet connection?
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1answer
97 views

Laptop suddenly rebooted

My laptop has rebooted suddenly without any warnings, but it has closed all programms, and killed all processes as if it was me who send it in reboot. The question is - where in logs can I see what ...
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1answer
98 views

How do I remove video files that are stuck on the applications/places toolbar?

Moving some video files around I mistakenly pushed them onto the applications/places toolbar. There they stay. I can't get rid of them. (Ubuntu 12.04 LTS) /home/peter/Pictures/Screenshot from ...
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3answers
3k views

How to open skype in one window 12.04?

How can i open skype like windows for example when we open skype on ubuntu it has multiple windows For contacts For current call For chat is it possible to open skype like we open skype on xp / 7 ...
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1answer
757 views

Ubuntu won't boot from USB 12.04

I've tried 4 different versions of Ubuntu now and I can't get them to boot. I have tried both universal usb and unetbootin with no luck. I have 2 different usb drives I'm trying to use both 4 ...
2
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1answer
2k views

3rd and 4th serial port not configured on startup

Ubuntu 12.04.2 LTS 3.2.0-39-generic-pae Hi there, the PC I'm working on has 4 serial ports. ttyS0 and ttyS1 function properly straight from startup, ttyS2 and ttyS3 do not. here is the relevant ...
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2answers
202 views

4Gb sd recognized as 1.6Gb

I used as dd command to make my 4GB sd card bootable for arch linux arm as explained here since it didn't work I tried formatting the card in my ubuntu again but now it recognizes it as a 1.6GB card ...
2
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2answers
2k views

ps error /proc must be mounted - but works as root

This is an OpenVZ VPS box. For example: $ ps Error: /proc must be mounted To mount /proc at boot you need an /etc/fstab line like: /proc /proc proc defaults In the meantime, run "mount ...
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0answers
2k views

what is the proper way to kill update-manager hung installing the 3.2.0-40 kernel?

Update-manager is hung bringing my 12.04 up to the 3.2.0-40 kernel. The cancel button is greyed out. Is it safe and adequate to click the x icon? If not, what sequence to kill the hierarchy of ...
2
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1answer
2k views

Grub “quiet splash” + linux-image-3.2.0-40-generic + full disk encryption = boot failure

From this morning the boot process on my laptop is no longer working. The only relevant change from yesterday (when all was working fine) has been a kernel update (from 3.2.0-39-generic to ...
0
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1answer
289 views

Internet connection working only on home WiFi

I'm having serious problem with my WiFi connection, respectively with the internet connection. My laptop is Lenovo EDGE E 530 3259-4DG . I'm able to connect to any WiFi, but then the internet ...
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0answers
343 views

How do I prevent Ubuntu 12.04 from locking, when using Win7 in VirtualBox?

I use Ubuntu 12.04 plus Windows 7 from VirtualBox. The thing is that, when I am in Windows "too long" (longer than the time after which Ubuntu normally locks), Ubuntu locks. It's not expected, because ...
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3answers
81k views

How can I install Qt 5.x on 12.04 LTS?

If you want to develop with QML 2.0 and Qt5, the base packages don't seem to exist in repository for 12.04. What PPA should I add? Is it a binary installer? a compile the toolkit yourself? Those ...
2
votes
3answers
2k views

Change LXDE desktop context menu

I am currently running on LXDE, and I'm curious as to whether there is a way to change the context menu when right clicking the desktop. I'd like to replace Xterm with LXTerminal. Is there a config ...
2
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1answer
359 views

dual booting with windows 7 and ubuntu 12.04 and partitioning

I have a current setup on my desktop PC using Windows 7 32bit Currently, i have 2 partitions C: for system files and programs installed D: Here are all files such as videos, songs,ebook, etc What ...
6
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1answer
679 views

Setting an admin user via the GUI - command line equivalent? [duplicate]

To designate a user as an administrator from the GUI, you can simply open-up that user's properties and select the Account type as the "Administrator" option. If the user already exists, what ...
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1answer
1k views

wine install problem

$ sudo apt-get install wine [sudo] password for hergul: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may ...
2
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2answers
3k views

How to remove orphaned files and residues

I'm using 12.04 LTS. After uninstalling unwanted packages using purge and autoremove commands I still have orphaned files in system / home directory (configuration and cache files mostly). Just to ...
1
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1answer
128 views

What is the risk on not updating Ubuntu after installing it from a CD? [duplicate]

I have an Ubuntu 12.4 CD. If I install it to my computer, is it mandatory to install the updates it shows when I boot from it? What are the risk involved in not installing the updates? I will be using ...
0
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1answer
188 views

How to recover Ubuntu 12.04

Ubuntu is my main OS and I have Windows as a VM. I made a mistake and rebooted while it was upgrading to 12.10 and now my machine cannot boot to OS. How can I recover my files before I do a clean ...
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1answer
3k views

Asking for cache data failed | Assuming drive cache : write through. Ubuntu 12.04 LTS GUI doesnot appear

I recently installed Ubuntu 12.04 on my hard drive partition of 10 gb. I was uninstalling some software and after that this messages started coming up on a black full screen. Asking for cache data ...
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1answer
781 views

Lightdm-gtk-greeter's background wallpaper is distorted in Ubuntu 12.04 (How I can correct background wallpaper errors in “lightdm-gtk-greeter”?

Changed my settings into "lightdm-gtk-greeter" to be able to select different languages at login each time I wish. Everything is fine with my PC. It logins correctly after a while with an exception ...
4
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1answer
1k views

12.04 not mounting Kindle 3

I've tried plugging in my Kindle (3rd generation-keyboard), but nothing happens when I do. It's not seeing the device anywhere. I've tried re-booting the kindle while plugged in, I've installed ...
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0answers
987 views

Cairo-dock and LXDE: Cairo-dock is always behind all of the Windows.

I have ubuntu installed, and I'm running it in the LXDE environment. When I have Cairo-dock running, I have it set to 'Always on top', however, it sits behind all of the windows. I want the dock to ...
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0answers
21 views

Ubuntu splash Screen is now a gear and boot speed is slow [duplicate]

I installed lxde, gnome, and a whole bunch of other desktop environments the other day, and now while Ubuntu boots, the splash screen is now a gear on a gray background, and boot speeds have gone from ...
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4answers
38k views

Making a Bootable USB flash drive which will boot in EFI

I have recently bought a laptop with windows 8 (EFI) installed. I thought I'd be able to handle installing 12.04.2 relatively easily - how wrong could I be? Using a live-usb I made using startup ...
0
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1answer
676 views

Chrome book optical disk drive

I don't know if this is the right place to ask (if it is not then if someone would guide me to the correct place) but I want to buy a chrome book and I found out that there is no way to get an ...
1
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2answers
2k views

CUDA nvprof profiler in 12.04

I have the latest CUDA toolkit and drivers installed on a 12.04 server. The drivers are working fine: all the NVIDIA sample code compiles and runs and I've written, compiled, and run several CUDA ...
0
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2answers
219 views

Where is Unity Launcher

I have just installed Ubuntu 12.04 using Wubi. It gets installed successfully but now I am only able to see an empty desktop. I could not find any softwares anywhere in home etc, no where. Where are ...
1
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1answer
22k views

DHCP server not starting

I'm trying to set a DHCP server on 12.04. I installed: sudo apt-get install isc-dhcp-server My configuration files look like this: /etc/default/isc-dhcp-server INTERFACES="eth0" ...
1
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1answer
2k views

Asus eeePC - Screen Brightness Issue

I have ASUS 1015CX Netbook on which I have installed Ubuntu 12.04LTS. All seem to work fine however there is an issue with brightness settings; changing the brightness (both through settings and with ...
2
votes
1answer
3k views

Nvidia optimus hdmi out tutorial not working correctly

After recently installing ubuntu 12.04 Desktop Edition lts on my nvida optimus equipped laptop (ASUS N53J) I tried to get hdmi out to work by using the method described in this guide here. I am able ...
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1answer
99 views

Maximum sound level differs between Ubuntu and Windows

Recently I've been watching lots of .mkv or .avi files in my Ubuntu and I realize that the maximum sound level is lower than what is in the Windows with KM Player. This difference is very noticeable ...
0
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1answer
114 views

Generating menu in ubuntu

I want to change GUI menu of ubuntu. That is, I want to add a icon at the menu (top of screen), after clicking that a menu will be shown and selecting particular option will run a particular ...
0
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2answers
2k views

32-bit or 64-bit [duplicate]

I'm installing 12.04 on to my desktop. I just have a question on which version is better for my hardware. My specs are: Processor: Intel Core i5 2400 @ 3.10GHz Sandy Bridge 32nm Technology ...
1
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1answer
304 views

How to get rid of whitespace around image file?

I could not delete the extra white space around a .eps file in Ubuntu 12.04. I have done the same, using the command fixbb <inputfile.eps> <outputfile.eps> in earlier versions but in this ...
0
votes
1answer
207 views

Update postgresql with latest security update

PostgreSQL announced on the 4th of April a security update to its PostgreSQL server. I really want to install that update. But if I run sudo apt-get update and sudo apt-get upgrade the update does ...
0
votes
1answer
2k views

Problem installing fglrx drivers 13.1 with kernel 3.4 on ubuntu 12.04.02 x64

I have tried to upgrade from kernel 3.2 to kernel 3.4 (here) and after that installing fglrx drivers 13.1 (compatible up to kernel 3.5). Here are the steps I followed: Removing (purging) existing ...
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0answers
549 views

C Time.h functions erratic on Precise 12.04

I'm running Ubuntu 12.04 and using the gcc compiler to compile my C/C++ programs. I want to benchmark a function. AFAIK, there are two standard functions to calculate time on POSIX systems and both ...
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0answers
391 views

No device file for partition in /dev/

I did partition /dev/sda1 using fdisk. After creating two partitions, saved the table. And rebooted the server. But there is no device file present for new partitions. :~$ sudo fdisk -l Disk ...
1
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1answer
2k views

How can I delete a directory on a smb share?

I have an external HDD mounted as a smb share (via a Iomega iConnect), however I can't delete a directory on it: Permission Denied Looking at properties: The permissions of "abc" could not ...
2
votes
1answer
4k views

OpenVPN on Ubuntu OpenVZ

I finished configuring OpenVPN on my OpenVZ vps. When I run service openvpn restart I get the following error output: * Stopping virtual private network daemon(s)... * No VPN is running. ...
3
votes
2answers
11k views

YouTube will not play in Firefox or Chrome on fresh 12.04 install

First of all let me state I am new to Ubuntu and the Linux platform all together. I decided to install on an older PC (Pentium 3) to get some use out of it. Everything seems to have installed fine ...