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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remove unsuccessfully installed ubuntu 12.04

I tried installing ubuntu 12.04 32-bit along side windows 8, and I encountered an error. I determined that I need to install the 64-bit version instead. I need to delete the old directory containing ...
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2answers
6k views

“No root file system is defined”

Have recently installed Ubuntu 12.04.2 LTS by USB on my newly built custom pc and I have run into a problem during installation with the error saying "No root file system is defined." My pc ...
2
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1answer
5k views

How can I improve the battery life under 12.04 on my Inspiron 14z? [duplicate]

How do I improve the battery life of my Inspiron 14z under Ubuntu 12.04? This laptop gets 4-5 hours of battery life using Windows (e.g. here). I've removed Windows, installed Ubuntu 12.04 and the ...
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2answers
237 views

Dual boot with ubuntu 12.04 and 13.04

I have installed 13.04 on the resident 8GB memory in my Acer Aspire One netbook. I have tried to install 12.04 (LTS) on the 32GB SD card. On start-up Grub Shows Ubuntu at the top of the list and ...
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2answers
3k views

How do I install the kernel headers as requested by this error message?

When I run sudo dpkg --configure -a I get Error! Your kernel headers for kernel 3.2.0-48-generic-pae cannot be found. Please install the linux-headers-3.2.0-48-generic-pae package. and gets ...
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0answers
5k views

How do I fix “dpkg status database is locked by another process”? [duplicate]

I got the the following error output when trying to install some package: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration ...
0
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1answer
184 views

My system has 6 gb ram and i3 processor having ubuntu 12.04 64bit installed

My system has 6 gb ram and i3 processor having ubuntu 12.04 64bit installed. when i starts it works well but after sometime when i poweron VMware and chromium browser memory shows by free -m remains ...
1
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1answer
613 views

ant not working on Ubuntu 12.10

I have installed ant on my ubuntu 12.10. When i try to compile a java project with build.xml, i get the following error: /usr/bin/ant: 1: eval: Syntax error: Unterminated quoted string ls -lrt ...
2
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0answers
673 views

Ubuntu 12.04 with 2.6.38 kernel

Can I install vanilla kernel 2.6.38 on Ubuntu 12.04?!? I tried installing it and booted 2.6.38 instead of default kernel but it never boots up. All I need to know is can I install 2.6 kernel on ...
2
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2answers
482 views

What partition table does the ubuntu 12.04 installer make?

What partition table does the Ubuntu 12.04 live CD installer make? Or can you choose that? Or should I use Gparted when I make the partitions for best compatibility?
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2answers
264 views

Partitioning my hard disk keeping everything and saving 20GB for Ubuntu:Possible?

I know that if I want to use Ubuntu aside Windows 7, I'll have to partition the drives, but I don't actually know about partitioning. This is very new. I want to ask something. How should I partition ...
0
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1answer
17 views

I missed the removal step after my upgrade from Oneiric to Precise

I have just upgraded my ubuntu form Oneiric to Precise. But unfortunately my PC hanged up, just before I was to start the removal step to remove the unnecessary packages. Hence, after a restart my PC ...
0
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1answer
431 views

how to use gdb to debug execution error?

When I ./tata I get segmentation fault.(core dumped) So I figure I need to debug the error, but I couldn't get where the line of errors are. Therefore, I need some guidelines from experienced guys to ...
5
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1answer
1k views

Why ubuntu does not use the kernels installed by automatic update?

I used the script describe in this question to list the kernel installed on the computer : How do I to remove or hide old kernel versions, to clean up the boot menu? In the 3.2.0, I have 33, 34, ...
1
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1answer
512 views

What happens when I cancel a Deja Dup backup?

Recently I had a reason to cancel a Deja Dup backup an hour later after it started. Now I wonder whether it messed up anything on the backup destination (AS3 storage)?
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0answers
18 views

Error when updating [duplicate]

Every time I run apt-get update I get the error for one PPA: W: Failed to fetch gzip:/var/lib/apt/lists/partial/gb.archive.ubuntu.com_ubuntu_dists_precise_universe_source_Sources Hash Sum ...
3
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1answer
4k views

Clearing caches in ubuntu

I need to clear system cache in order to record the time taken by a postgres query in cold cache. For clearing the system cache I am executing the following commands as root on Ubuntu server 12.04: ...
0
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1answer
91 views

Ubuntu freezes on first boot on samsumg series 9

I have just wiped windows 8 from my samsumg series 9 by installing Ubuntu 12 64 bit over it through usb. I have fast bios mode disabled and os mode selection set to csm os and the boot usb removed ...
3
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0answers
391 views

Wireless Problems After Resume

[Edit 3: Before you read all of this, I don't think this is a software issue anymore, so I'm not sure if there's a real solution that can be offered. I saw this video and read some of the comments. It ...
0
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1answer
99 views

Benefits of updating the ubuntu 12.04? [duplicate]

i am using ubuntu 12.04 LTS .What are the benefits of updating by update manager ?
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1answer
35 views

Question about 0x08059081

currently doing some homework to improve my skills. I tried to run a file by using gdb, but I encountered 2 errors as shown in the picture below. 0 0x08059081 1 0x080493c6 May I know what is #0 ...
0
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2answers
513 views

Can not install Wine 1.4 on Ubunru 12.04 running on a iBOOk G4

In synaptic when set to install says package broken kevin@ubuntu:~$ sudo apt-get install wine [sudo] password for kevin: Reading package lists... Done Building dependency tree Reading state ...
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1answer
1k views

Ubuntu 12.04 LTS error when checking for software updates

Since 20th june 2013 I have tried running the software updater in ubuntu 12.04 LTS however it runs but returns this error W:Failed to fetch ...
2
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3answers
587 views

Will 4000 MB be enough for all the download work needed to install Ubuntu?

I am a Windows user and I am looking forward to using Ubuntu 12.04, however there are some difficulties I want to discuss. First off I am using a Pentium 4 PC RAM 4 GB and 160 GB hard disk, processor ...
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1answer
1k views

Ubuntu 12.04 cryptsetup failing

I recently updated my Ubuntu 12.04, and after I restarted the computer just hangs at the following after I type my decrypt password: "cryptsetup: sda5_crypt set up successfully" I don't know how I ...
2
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1answer
103 views

How can I import data from one Ubuntu version (say 11.04 ) to 12.04.?

I want to import some bookmarks, browser history, and contents of my home directory. I have both 11.04 and 12.04 installed on my system. Is there any way to import my data from older version?
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1answer
2k views

Cannot uninstall BitDefender

I installed Bitdefender on my Ubuntu 12.04 machine a little while ago, but have since realised that the ppa no longer has a folder to support the precise distro, thus I cannot update the BitDefender ...
0
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1answer
298 views

remove grub when there is no Ubuntu [duplicate]

I installed Ubuntu 12.04 on my partitioned hard disc: /dev/sda /dev/sda1 ntfs Windows /dev/sda2 ntfs Backup Disk /dev/sda3 ext4 Ubuntu 12.04 I can boot from Ubuntu and Windows via Grub. ...
1
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1answer
288 views

Problem: Ufw Enabled with Deny/Deny, however SSH Inbound still works. Please help

In order to lock down my server, i installed ubuntu with ufw. I run a VM inside the server that hosts a ssh server. I opened the server and ran UFW and set Deny to send and Deny to Recieve. Now it ...
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1answer
816 views

Acer TimelineX 4820TG fan speed out of controll after install Ubuntu 12.04

Laptop Acer Aspire TimelineX 4820TG. Dual boot Windows 7 and Ubuntu 10.10 Despite some small bugs the machine runs fantastic with this software. After installing Ubuntu 12.04 the cooling fan runs ...
0
votes
1answer
2k views

How to configure Static IP's (internal or lan IP) in my ubuntu (VPS)

First of all greetings to all i have a problem with ubuntu i am running ubuntu server 12.04 LTS with GUI (GNOME) Well its a VPS This is my eth0 eth0 Link encap:Ethernet HWaddr ...
1
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1answer
52 views

How do I take Win 7 off a dual boot mini [duplicate]

I have an HP mini with dual boot Ubuntu 12.04 and Win 7. I am VERY green at Linux and would like to take the Win 7 off and have a Linux only mini. No CD drive so it would have to be done with a jump ...
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2answers
5k views

cmake fails with “Could NOT find HDF5”

My project compiles flawlessly in Mac OS X and now that I try building in Ubuntu 12.x latest as of today, I get the error -- Could NOT find HDF5 (missing: HDF5_LIBRARIES HDF5_INCLUDE_DIRS). If I take ...
0
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1answer
225 views

Computer locks up on “last screen” when restarting/shutting down Ubuntu 12.04

Every time I restart or shut down my new installation of Ubuntu 12.04, I get to a black screen and the computer just hangs there forever. The only way to get past that is through the physical ...
4
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7answers
2k views

Black screen after select installing on a Dell Inspiron 14z

I'm trying to do a dual boot on my Dell Inspiron 14z notebook, but I always get a black screen after selecting Install Ubuntu. I've tried to add nomodeset and acpi_osi="Linux" to the boot options, ...
0
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1answer
13k views

Enable SNMP on Ubuntu 12.04 to communicate with Windows Server

I have the newest release of Ubuntu 12.04 and Windows Server 2008 R2. On the Windows Server I have a device management agent which keeps track of all the devices in the local area network as well as ...
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0answers
304 views

Code Blocks is using 100% of CPU

I'm using Code Blocks 10.05 on Ubuntu 12.04 and it's using 100% of the CPU with no project or files open.
2
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0answers
495 views

Ubuntu 12.04 hangs during plymouth purple screen boot

I am running Ubuntu 12.04 LTS on a partition on (I believe) an Apple Mac mini "Core i5". Everything was going well until recently. Now Ubuntu hangs during the purple splash screen, just showing ...
8
votes
2answers
3k views

OpenGL warnings with Ubuntu 12.04 LTS running as a VirtualBox Guest under Windows7

I have been using 12.04 as a guest on my laptop for quiet some time now and it works flawlessly. Today a colleague asked me about the 3D performance of the guest. It never came in my mind to use ...
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2answers
550 views

Unable to connect to open wireless network

I am unable to connect to a wifi network. When I try to connect I can see that either the network stops broadcast or my adapter doesn't recieve it. Thank you.
0
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2answers
292 views

How to open this dropbox file in ubuntu 12.04? [closed]

As what title said, how should I open this file? It was a executable(application/x-executable) file. Thank you.
2
votes
1answer
9k views

How to access the Windows 7 shared folders

I'm a little new to Ubuntu, but I'm lovin' it so far :) I have Ubuntu 12.04 installed om my older desktop and connected with a wire. My (newer) laptop has windows 7 running and has all my music. I'd ...
0
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1answer
1k views

How to “uninstall” Plymouth Themes

I have been working with custom Plymouth themes and have ran into a little confusion. For a reason unclear to me, you have to enter the following: sudo update-alternatives --install ...
1
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0answers
168 views

Ubuntu 12.04 overheating my laptop [duplicate]

I use dell Inspiron 5520 laptop with latest BIOS version A13 with 4GB RAM and Intel core i5 processor. Recently I have removed Windows 8 and installed Ubuntu 12.04 by disabling the UEFI mode. Since ...
0
votes
1answer
471 views

Error while mounting partition with Live CD

While booting my system, It is going into initramfs prompt and it is giving some error. Before taking any further steps, I planned to take a backup my data from hard disk. So, I bootted the system ...
0
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1answer
29 views

shared Workstation with Ubuntu?

This is kind of an awkward question but here I go. Is it possible to have a shared Workstation for two users? each user would have its own pair of screens, mouse, keyboard etc but each working in its ...
2
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0answers
127 views

USB stick does not appear automatically in the launcher when entry is given in fstab for noexec option

We tried to mount usb for a limited user, which is not a sudo user. When we give auto mounting, the permissions shown when issuing the mount command are: nosuid,rw,nodev But we want to give noexec ...
0
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1answer
45 views

LibreOffice 4 is not working [duplicate]

Following error is appearing during installation.... "The following packages have unmet dependencies: libreoffice-core : Depends: libreoffice-common (> 1:3.5.7) but it is not installed " Pls help.
0
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1answer
276 views

Ubuntu 12.04 LTS Wubi Installation [duplicate]

I have just (finally) installed Ubuntu 12.04 LTS on my Acer Aspire One netbook, using Wubi. I have tried to install with a USB stick many times, but failed. So, now I have a dual boot with Ubuntu ...
2
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0answers
1k views

Ubuntu 12.04 Hangs at “Where are You?” during install

I am trying to dual-boot a brand-spanking new rebuilt computer. I bought (2) 128GB Samsung 840 pro SSDs with the intent of installing Windows 8 (new) on one and Ubuntu on the other... with a 500gb ...