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.
2,329
questions
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Package dbus is not configured yet
While attempting to upgrade (sudo apt-get upgrade) Ubuntu 12.04, I had a pair of packages that would throw the following apt-get install errors for the dbus dependency:
dpkg: error processing dbus (--...
- 433
32
votes
4
answers
259k
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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 ...
- 626
6
votes
1
answer
5k
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Package linux-image-generic is not configured yet
Long story short, my Ubuntu 12.04 VM ran out of space and an update failed. I then increased the disk space but am no longer able to update anything using apt-get.
This is the output of apt-get ...
- 63
6
votes
2
answers
15k
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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.
- 79
14
votes
0
answers
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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 ...
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191
votes
6
answers
452k
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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 ...
- 22.2k
44
votes
3
answers
103k
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Why does kworker cpu usage get so high?
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 ...
- 441
13
votes
10
answers
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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 ...
- 1,785
27
votes
14
answers
102k
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?
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18
votes
0
answers
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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 ...
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64
votes
5
answers
144k
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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'...
- 2,130
3
votes
2
answers
11k
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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 ...
- 31
279
votes
10
answers
439k
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Is there another way to restart the sound system if pulseaudio/ALSA don't work?
I was listening to music, and my sound suddenly went dead in all my applications. I'm using Ubuntu 12.04, which uses pulseaudio, so I tried sudo /etc/init.d/pulseaudio restart, but nothing happened. ...
- 3,079
26
votes
2
answers
102k
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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?
- 271
3
votes
1
answer
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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 ...
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20
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5
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Can't execute terminal commands: "the command 'sudo' is available in '/usr/bin/sudo'"
I have been using Ubuntu 12.04 for quite a while and have never had a problem come at me out of the blue like this. I'm trying to install python 3.2 on my Ubuntu system and every time I run the code ...
- 201
66
votes
2
answers
214k
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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)
- 2,324
29
votes
5
answers
26k
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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 ...
- 19.7k
10
votes
5
answers
20k
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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 ...
- 3,484
64
votes
7
answers
548k
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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 ...
266
votes
9
answers
341k
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tracker-store and tracker-miner-fs eating up my CPU on every startup
Whenever I start my laptop the process tracker-store and tracker-miner-fs eats up my CPU between 30-40% for 10-15 minutes. I am on ubuntu 12.04.
What does these processes do? How to get rid of ...
- 11.6k
12
votes
2
answers
21k
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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 ...
- 301
5
votes
1
answer
6k
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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 ...
2
votes
0
answers
516
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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 ...
46
votes
4
answers
49k
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 ...
- 1,389
18
votes
2
answers
120k
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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 ...
- 331
145
votes
8
answers
358k
views
How do I remove Steam?
Anyone know of a way to remove Steam from Ubuntu 12.04? Looked around the net but could not find an straight forward solution. Thanks.
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116
votes
11
answers
84k
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"Failure to download extra data files" after installing ttf-mscorefonts-installer
After fresh install 12.04 I && updating apt and system restart, I always get this annoying message after reboot :
Failure to download extra data files
The following packages requested ...
- 1,263
54
votes
4
answers
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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 ...
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28
votes
7
answers
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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 ...
- 281
16
votes
5
answers
90k
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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: ...
- 571
19
votes
6
answers
35k
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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....
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17
votes
3
answers
59k
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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 ...
- 367
12
votes
1
answer
283k
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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 ...
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votes
2
answers
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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 ...
- 110
74
votes
6
answers
314k
views
How to check for errors in RAM via Ubuntu?
I have Ubuntu 11 running off a 3.6GB USB flash/stick drive. System has 4GB RAM and blank hard disk (wiped using DBAN tool).
How do I check if there are no errors in my RAM? Is there a guaranteed way ...
- 847
39
votes
7
answers
274k
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 ...
- 391
19
votes
3
answers
11k
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APT wedged by kernel version mismatch
Apt is seemingly unable to do anything useful for me, repeatedly giving messages of this form:
dpkg: dependency problems prevent configuration of linux-server:
linux-server depends on linux-image-...
- 583
18
votes
5
answers
61k
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 ...
- 2,781
15
votes
4
answers
31k
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?
- 1,159
14
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10
answers
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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 ...
12
votes
10
answers
59k
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Why do I get a reboot instead of a shutdown?
After two days of installation, strangely my Ubuntu machine is restarting instead of shutdown from both desktop GUI and command line.
sudo shutdown -h now
sudo halt # (doesn't shutdown, instead ...
- 299
12
votes
1
answer
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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 ...
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votes
10
answers
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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 ...
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6
votes
1
answer
7k
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 ...
- 61
5
votes
5
answers
53k
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 ...
- 281
3
votes
2
answers
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 ...
- 33
1
vote
5
answers
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?
- 5,427
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votes
2
answers
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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: ...
- 4,237
41
votes
6
answers
78k
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 ...
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