Questions tagged [12.04]

Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012, no longer supported (EOL) since 28th April 2017. Questions about unsupported versions are likely to be closed as off-topic.

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14
votes
0answers
61k views

Wireless doesn't work on a Broadcom BCM4312 [duplicate]

Possible Duplicate: How to Install Broadcom / STA Wireless card (BCM43XX) As stated, I've just upgraded to 12.04 and my Dell Inspiron 1545 isn't recognising its wireless card and I was wondering ...
27
votes
4answers
216k views

Install on Second Hard Drive with startup boot option?

In theory, what I want to do is very simple, but I've done some google research and read some posts on this site and I'm still confused. I want to keep win7 on my primary C:\ drive, and install ...
138
votes
5answers
319k views

How to recover/reset forgotten Gnome Keyring Password?

I am on Ubuntu and I have forgotten the password for my Gnome Keyring (yes, stupid me, I know). Any way I can get it back? I have already looked at this link, but it says it's not possible if my home ...
13
votes
10answers
51k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
26
votes
14answers
96k views

How to control Brightness

I didn't install anything myself, but only Ubuntu 12.04 LTS on an Acer 4741g. I use Fn+left/right to change the brightness, but failed. How can I control the brightness levels?
4
votes
2answers
8k views

What is the correct output of cat /etc/apt/sources.list?

I have Ubuntu 12.04 LTS. I need the correct output because I edited it because it wasn't working but it has only made it worse.
40
votes
3answers
89k views

Why does kworker cpu usage get so high? [duplicate]

I recently installed Ubuntu 12.04 on my Samsung laptop alongside Windows 7. Whenever I use Ubuntu (even when its idle) kworker uses almost 90% of one of 8-cores. Even though it doesn't really affect ...
18
votes
0answers
7k views

How well will Nvidia Optimus cards be supported in 12.04? [duplicate]

Possible Duplicate: How well do laptops with Nvidia Optimus work? Will Nvidia Optimus be supported in 12.04?It will be improvements in nvidia optimus drivers? Will no longer need bumblebee to ...
61
votes
5answers
135k views

How do I move (copy) my entire Ubuntu system to a different hard disk?

The HDD I have my Ubuntu installed is about to fail. I would rather not lose 3 years worth of data, customisation and apps. I am looking for a way to move the complete system (SWAP included, because I'...
3
votes
2answers
10k views

Ubuntu 12.04 (Wubi) not starting - root.disk corrupted

I have Ubuntu 12.04 installed through Wubi on my laptop. For some reason when i click on Ubuntu on start up (when you have to either select windows or Ubuntu) I get the following screen, the grub ...
3
votes
1answer
6k views

any problems with this partition scheme?

I must create a new ubuntu 12.04.2 boot disk after the /boot directory on my old HDD got corrupted. The following is the partition scheme I'm planning. Is there anything wrong with this for this ...
22
votes
2answers
80k views

What does the term “Extended Partition” mean? Is it safe to use this type of partition?

In the image below, what does Extended 103 GB mean?
55
votes
7answers
269k views

How to resolve “dpkg: error processing /var/cache/apt/archives/python-apport_2.0.1-0ubuntu9_all.deb”?

Update Manager will not update even though I have over 100 updates to install. I get a error message like this: installArchives() failed: Extracting templates from packages: 29%% Extracting ...
56
votes
2answers
163k views

How to see/change screen refresh rate or monitor frequency?

My eyes hurt so I thought I should check the screen refresh rate (monitor frequency), but I couldn't find it. Where is it? (in Ubuntu 12)
11
votes
4answers
19k views

Distorted and Choppy Audio

After installing 12.04 Precise on my PC, I have encountered some problems with audio output which did no occur when using Lucid. The sound is choppy and distorted in the lower tones. As I have no ...
32
votes
1answer
127k views

Could not get lock /var/lib/apt/lists/lock [duplicate]

when I try to apt-get update I'm getting the below error, E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/
23
votes
4answers
15k views

Set HDMI sound output automatically on connect/disconnect

I have a dual screen setup on my laptop (using 12.04 LTS) using a HDMI connected display. Everything works fine, but everytime I connect/disconnect the cable I have to go to Sound preferences and ...
4
votes
1answer
6k views

Only 'sdb' shows up when installing 12.04 on a new Dell inspiron 14z

I got my brand new Dell Inspiron 14z yesterday, but failed to install Ubuntu. I can boot from a USB stick, and it works well. When trying to install, I confirm that the laptop is connected to the ...
12
votes
2answers
19k views

Unable to install any updates through update manager/apt-get upgrade

I have been running Ubuntu 12.04 for the past few weeks. I recently tried to download and install some files through the Update Manager. It located a few files, downloaded them, but then failed to ...
2
votes
0answers
516 views

Does Ubuntu rely on Windows if I install it using the Windows installer? [duplicate]

Possible Duplicate: How to convert Wubi install into regular install? If I install Ubuntu to a new partition using the Windows installer (Wubi), will I be able to uninstall Windows, and have ...
28
votes
7answers
78k views

Stuck on reboot and shutdown

I've recently installed Ubuntu 12.04 and I love it. However I have one problem- I am unable to shutdown or reboot properly. When I shutdown my laptop (Acer Aspire 5560) it hangs on the 5 dots and ...
32
votes
7answers
195k views

MySQL Access denied for user 'root'@'localhost'

In my server, everytime I try to access MySQL I get the error: Access denied for user 'root'@'localhost' (using password: NO) when I try mysqladmin -u root -p password I get Access denied ...
16
votes
3answers
52k views

apt-get 403 Forbidden

I've start a new job today and I am trying to set up my machine to run through their Windows server. I've managed to get a internet connection through the server now but now I can't run apt-get ...
11
votes
1answer
237k views

How to manually install boot loader?

My attempt to upgrade to 12.04 failed, so I burnt a 12.04 CD, and asked to do a full install, getting rid of all previous OS (I had Windows as well as 11.10). All seemed well until the very end when ...
42
votes
4answers
55k views

How do I mount an encrypted /home directory on another Ubuntu machine?

I've done something a bit, well, strange. I installed Ubuntu 12.04 directly onto a USB thumb stick, encrypting the /home directory as given the option during the install. The filesystem is btrfs, I ...
45
votes
2answers
98k views

W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available:

I get the following error when i do sudo apt-get update W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: ...
34
votes
4answers
38k views

How do I set a custom keyboard shortcut to control volume?

I would like to be able to set three custom keyboard shortcuts to be able to decrease, increase and mute the volume in Ubuntu 12.04 (Unity). On my old Ubuntu 10.04 (Gnome) system I made CTRL + [, CTRL ...
13
votes
5answers
80k views

How to fix “-5 No address associated with hostname error” while updating?

I am getting this error frequently while updating Ubuntu 12.04 LTS. How can I fix it? Log is: Ign http://archive.scrapy.org precise/main Translation-en Fetched 6,620 kB in 1min 21s (81.2 kB/s) W: ...
13
votes
2answers
96k views

How to reinstall PulseAudio (Ubuntu 12.04)

I was trying to fix my audio problems using suggestions from this forum. One of the comments suggested I execute this and only this: killall pulseaudio So I did, and I restarted my computer just ...
19
votes
6answers
32k views

Unsatisfied Link Error and missing .so files when starting Eclipse

I upgraded to the 12.04 beta yesterday. Now, when I try to start Eclipse, I get the splash screen and then this error message: An error has occurred. See the log file /home/gabriel/.eclipse/org....
12
votes
4answers
29k views

How do I disable usb storage?

I'm using Ubuntu 12.04 and I want to block usb storage on it. What is the correct way to do this?
6
votes
1answer
5k views

How to recover files after deleted my Ubuntu partition?

I normally dual-boot with 12.04 and Win XP pro sp3 on a Thinkpad R60. I needed to reinstall windows because of problems piling up, so I ran the computer's built-in hard-disk recovery software. I ...
3
votes
2answers
24k views

After installing Ubuntu from USB, GRUB2 can't be installed!

Hello ladies and gentlemen! I installed Ubuntu alongside with Windows 7 using live USB. It wouldn't let me install GRUB, it says there's a fatal error with the partition chose. I literally chose ...
6
votes
2answers
17k views

Dual boot Ubuntu 12.04/Windows 7

I have an Ubuntu 12.04 / Windows 7 dual boot. After installing Ubuntu my computer reboots straight to Windows. There is no option to boot Ubuntu. Specs: OS: Windows 7 Home Premium CPU: Intel i5 ...
44
votes
4answers
373k views

A “failed to fetch” error occurs when apt-get update is run. How do I fix this?

Contrary to the note above, I haven't found the answer to my problem. I have read almost a dozen apt-get update questions, most from askubuntu.com, with "failed to fetch" errors and tried the ...
18
votes
5answers
59k views

How to force Multiple Monitors correct resolutions for LightDM?

I am affected by the BUG: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/874241 Otherwise, if like me you have a laptop connected to a second monitor of higher resolution, LIGHTDM at the ...
12
votes
1answer
33k views

Unity 3d no longer works after installing 12.04

I just installed Ubuntu 12.04 by cd. Unity 3D will not work now only 2D It worked fine in 11.10 and also when I upgraded to the beta of 12.04 through update manager. I tried both Nvidia Proprietary ...
14
votes
10answers
72k views

Missing launcher after 12.04 upgrade [duplicate]

I recently upgraded to Ubuntu 12.04 and after doing some updates and such my application launcher and title bars (for window dialogues) are missing. Basically the entire Unity GUI is missing! Not ...
8
votes
3answers
9k views

ubuntu-12.04-wubi-i386.tar.xz for the wubi installer

I ran the wubi installer (from an extracted ubuntu ISO) and it downloads ubuntu-12.04-wubi-i386.tar.xz but it's slow and non-resumable so I cancelled it, found a mirror of the file online and ...
5
votes
5answers
52k views

How do I get a Broadcom BCM4313 wireless card working?

I upgraded Ubuntu from 11.10 to 12.04, until which wireless was working just fine. After the upgrade and reboot, wireless is not even being detected (When I click the network manager icon in the top ...
10
votes
10answers
74k views

Login screen loops unless you login as Guest [duplicate]

I am running a VMWare Player with a Ubuntu 12.04 LTS Precise Pangolin as Guest on my Windows 7. Sometimes I get the shutdown blue screen error in Windows, this time it happened when I was running the ...
5
votes
4answers
76k views

How to install drivers for NVIDIA GeForce FX 5200 on Precise

Ok, I'm a total Linux noob. I was able to install 12.4 without issue, except that it says in the system settings that the graphics card/driver is "unknown". I have NVIDIA GeForce FX 5200, and have ...
1
vote
5answers
9k views

Is it possible to install Unity 6.x.x on 12.04?

Is it possible to get the latest Unity without upgrading to 12.10 on my Ubuntu 12.04 PC or will this be backported?
2
votes
5answers
3k views

Can't boot into Win7 since Update to 12.04

I had dual boot, Win7 64bit, and Ubuntu 11.10 I updated to Ubuntu 12.04 Now I am not met with the prompt asking which OS to boot into (setup via EasyBCD in Windows while I had Ubuntu 11.10) Is ...
3
votes
2answers
18k views

Install on usb external hard drive

I am new to ubuntu and i would like some help. I have a laptop with windows 7 installed but i would love to have ubuntu too because it's a great OS. So i would like to install ubuntu on an external ...
39
votes
6answers
74k views

How to use a real partition with Windows 7 installed, in a virtualbox vm?

My Ubuntu 12.04 is installed on /dev/sda5 and Windows 7 on /dev/sda1. When I am running Ubuntu, I would like to use Virtualbox to run Windows 7 in a VM. The Windows 7 partition is 1 TB and is half ...
35
votes
5answers
248k views

How to share files from Host to Guest in VirtualBox? Host-Ubuntu, Guest-Ubuntu [duplicate]

I have an Ubuntu 12.04 machine on which I have installed VirtualBox with Ubuntu 12.04 as the guest OS. How can I share files between the host and guest? I have installed the guest additions also ...
22
votes
4answers
134k views

How can I install one language by command-line

I'm trying to have everything ready to install a new desktop with a few command line instructions. Unfortunately, to install the language packages, I couldn't find how to do it. I can run gnome-...
34
votes
6answers
85k views

How to change the time for OS selection menu in GRUB?

I have Windows 7 and Ubuntu 12.04 in my system and i saw that the default time for os selection menu is only 10 sec, as i am new to Linux can anyone tell me how to increase this time?
16
votes
7answers
56k views

Juniper setup on 12.04

I have a laptop with Windows XP and Ubuntu 12.04 (32 bits). Until now, I used Windows XP to connect to a Juniper VPN but now I'd like to try it with Linux. I read the mad scientist walkthrough (...

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