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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4
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3answers
2k views

Windows 7 hangs at grub's purple screen when dual booting

I have installed a new laptop (Lenovo Z510) for dual boot Ubuntu 12.04 and Windows 7 64 bit. After several trials it now works, but I have a strange effect. I always enter the Grub purple screen ...
1
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0answers
27 views

LTSP failed to establish RDP connection

Could you please help me? I installed a ltsp server on a ubuntu 12.04 machine in order to use it as a thin client to connect to the terminal server of the company. i did installed ltsp-server ...
2
votes
1answer
4k views

Dual Screen will only mirror after 12.04 upgrade

I have been using Ubuntu with a dual screen for years now, after upgrading to 12.04 LTS i cannot get my dual screen working properly Graphics: 01:00.0 VGA compatible controller: Advanced Micro ...
0
votes
1answer
32 views

Dropbox fail in Ubuntu 12.04

I tried installing Dropbox in Ubuntu 12.04 in the computer that is provided by my university. I do not have root privileges. I tried to install it through Ubuntu Software Center. When I did a reboot ...
-1
votes
1answer
20 views

I want an Ubuntu 12.04 whith Kernel 3.4.6

I could not find a copy of ubuntu 12.04 Where the kernel ia 3.4.6 . I want to download an Ubuntu 12.04 (kernel 3.4.6). Possible link to download.
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0answers
10 views

No audio in ubuntu12.04 lts

I cant able to hear any audio Even i change the driver in Alsa mixer its revert back to the same Need some advice regarding this issue
6
votes
4answers
60k views

Ubuntu boots on terminal only, how do I recover the GUI desktop?

Where is my Ubuntu desktop? Its booting and going always default to terminal screen, if i press Ctrl+Alt+F7 still in terminal Ctrl+Alt+F1 still in terminal. No GUI, how do I recover it? EDIT: ...
0
votes
2answers
4k views

Asus Zenbook UX31E heats up and fan works constantly with 12.04

I bought the Asus Zenbook UX31E a few days ago and installed Ubuntu 12.04. Everything works well, but the CPU temperature (and overall the machine) seems too hot and the fan works too often, even with ...
1
vote
3answers
4k views

Ubuntu 12.04 does not shutdown

I am using Ubuntu 12.04 amd64 desktop. It worked fine, but after the last update, the system does not shutdown. It gets stuck with the last line on the screen being: unmounted /kernel/debug I ...
2
votes
2answers
4k 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. ...
1
vote
2answers
13k views

How can I reinstall pulseaudio? (12.04 64bit)

I accidentally removed pulseaudio from my Ubuntu 12.04 64bit. I have tried reinstalling it using sudo apt-get install pulseaudio but my sound card doesn't appear in the list of the devices (in ...
0
votes
1answer
236 views

Problem with wifi Ubuntu 12.04, Qualcomm Atheros QCA95665

I bought a Dell Inspiron 14 3442 laptop pre-installed with Ubuntu 12.04 LTS , however I am having issues with the WiFi connection. I receive the error message: Has closed the connection every time ...
0
votes
4answers
10k views

Blank screen when booting from USB drive

Here is what I have done: I downloaded the iso "ubuntu-12.04-desktop-amd64" I used Universal-USB-Installer-1.9.0.0 to make a bootable USB drive. I restarted PC and changed the boot option to USB ...
2
votes
2answers
823 views

Cant change niceness even after editing limits.conf

so what i did: in the terminal i typed: sudo su (used pass) then typed: nano /etc/security/limits.conf went to bottom and added: USER - nice -20 (with my ...
0
votes
2answers
5k views

vnc using lightdm and x11vnc disconnects immediately after valid login

starting with a precise 64-bit server install, I configured the following; sudo apt-get install lightdm x11vnc sudo dpkg-reconfigure lightdm in /etc/init/x11vnc.conf, I placed; start on ...
0
votes
0answers
19 views

How to remove file with ????? permission [duplicate]

I am not able to delete files/folders as I see some files/folders with permission ??????. How to remove them? Files are sitting in share folder of my Windows/Ubuntu machine drwxrwx--- 1 root vboxsf ...
0
votes
1answer
447 views

Unable to Install 14.1 on Dell Studio 1747 Laptop, Intel i7, 10GB RAM - Kernel error BUG: Soft Lockup

Update: I have now attempted to install 14.01, 13.1, and 12.04.5 with the same result. I have been attempting to install Ubuntu 14.1 on a Dell Studio 1747 laptop with a Intel i7 Core Processor. Have ...
1
vote
3answers
13k views

Setting up a PPPoE internet connection in Ubuntu 12.04

I've been trying to set up my internet connection and router with Ubuntu 12.04 and I've been having some issues. I am currently trying to connect directly through my modem using the PPPoE username and ...
0
votes
2answers
4k views

Unable to Install Ubuntu LTS 12.04.3 on Mac OS X Mavericks: no mountable file systems

I am not able to mount the .iso of Ubuntu on my MacBook Pro with OS X Mavericks. I tried double click, Disk Utility and also Terminal but the image just won't mount nor work. When using double ...
0
votes
2answers
4k views

how to setup an alias apache2

I am new to UBUNTU and try to use apache to check a website that I am currently developing using Joomla (novice to that too). I am trying to setup an alias in httpd.conf, but have not been ...
0
votes
3answers
6k views

Not able to configure Reliance Netconnect USB dongle with Ubuntu 12.04 LTS

I've a Netconnect USB dongle which is I am not able to use with Ubuntu 12.04 LTS. I am noob lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID ...
1
vote
2answers
6k views

Diskless with Ubuntu 12.04

I'm trying to setup a new diskless solution with ubuntu 12.04 without any success. I followed this Diskless Ubuntu HowTo But the initramfs seems not to be able to mount my nfs share. On my server ...
0
votes
0answers
15 views

upgrade 12.04 to 14.04 hung at ttf-punjab fonts

I have a fresh 12.04 lts system which i am upgrading to 14.04 while upgrading Distribution package is hungup at unpaking ttf-punjab fonts and it is not showing the list distrribution package window ...
0
votes
2answers
31 views

juju ssh public key issue

I have two machines on which one is running a postgresql charm and other is running the charm I'm working on. Now I need to ssh into the postgresql machine to run some database migration scripts. For ...
0
votes
1answer
4k views

How to add a specific keyboard layout in LXDE?

I'm using Ubuntu 12.04 with Unity and LXDE. I use a phonetic keyboard layout to write Bengali in Unity. Now, I want to use LXDE, because of its better performance on my PC, but problem is that, I ...
0
votes
1answer
76 views

Ubuntu 12.04 on Intel NUC5CPYH

I have installed Ubuntu 12.04 on intel NYC5CPYH using usb. Display was good when booted from live disk, but after installation it is giving an error of low graphics mode and after this it freezes. ...
2
votes
1answer
2k views

Why does the installer say I don't have enough drive space on a new drive?

I have a problem with Ubuntu 12.04 LTS. I am trying to install it on a new (bare) hard drive and can't get past the first screen (the one that says "For best results, please ensure that this computer: ...
2
votes
1answer
2k views

Ubuntu desktop installation problem, a lot of error messages

I am getting error messages while trying to install ubuntu 12.04 on my desktop (Intel Pentium D). The error messages are: *checking battery state... [412.633532] end_request:I/O error .dev sr0, ...
0
votes
2answers
4k views

Static IP Address on Ubuntu 12.04 Virtual Machine

I've setup a VM running Ubuntu 12.04 specifically for local web development and am having some problems ensuring it has a static IP address. A static IP address is important as I'm using the IP ...
1
vote
1answer
5k views

Fn keys for Brightness not working on Toshiba Satellite L755

I am running Ubuntu 12.04 and I love it! The only problem is the keys for my brightness, F6 and F7, does not work when I am on battery power or AC power. It randomly works after I am idle for a while ...
0
votes
2answers
8k views

Second monitor recognized but only black screen

I am running 12.04 on a Toshiba Portege laptop. The graphics card is an Intel 945GM/GMS. The 2nd monitor is an Asus (Ancor Communications 22"). When I connect the monitor to the computer the monitor ...
9
votes
1answer
4k views

How to install hp scanjet 200 in Ubuntu 12.04?

Unable to scan with hp scan-jet 200. When I type lsusb command in terminal it shows the scanner details. I opened the simple scan which displays no scanners found, and x sane image scanners also ...
0
votes
0answers
13 views

How do I install wireshark on Ubuntu 12.04 offline? [duplicate]

The target machine running Ubuntu 12.04 has no network access. I downloaded the 3 source files from here https://launchpad.net/ubuntu/precise/+source/wireshark and copied them to my target box. I ...
1
vote
1answer
2k views

How to try Ubuntu on a hp pavilion g7-1246ef computer that has no Linux suport for video card? (12.04)

I want to try Ubuntu on a hp pavilion g7-1246ef computer. I got it as a 64 bit system with a win7 64 bit but now it runs a 32 bit win 7 (due to canon printer driver issue). The Windows device manager ...
0
votes
1answer
8k views

Restore Xorg core and config files ubuntu 14.04

This question is a follow up on this one. I have recently upgraded from Ubuntu 12.04 to 14.04 and xserver broke during the process. I have tried reinstalling from the command line running the ...
0
votes
5answers
9k views

How do I set resolution to 1440x900 with Nvidia?

I have an Nvidia GeForce 9800 GT card and suddenly after some recent updates on 12.04, I am unable to get my resolution higher than 1024x768. It used to be 1440x900. I have tried uninstalling and ...
6
votes
3answers
6k views

How to set LibreOffice to suggest corrections for UK English (in Lubuntu)?

I want to be given correction suggestions while setting a text in LibreOffice to English-UK. Now it works for English-US, French and Romanian, as these are the languages that I have installed in ...
4
votes
1answer
10k views

Authentication issue with CUPS 5.3.1 on SMB Printer

I am trying to print to a samba printer via CUPS. I have configured the printer allright, but there seems to be a problem with authentication. The error message I get is Session setup failed: ...
0
votes
4answers
5k views

ZTE MF180 - BSNL - 3G Datacard USB Modem not working in Ubuntu 12.04 LTS

I'm entirely new to Ubuntu and hence do not have much knowledge about it... I recently installed Ubuntu 12.04 LTS version alongside with Windows 7 since i wanted dual booting option. Here's my ...
0
votes
1answer
49 views

ceph fs mount error

I want to mount ceph fs with the kernel driver, but when I excute below command on my admin node mount -t ceph 192.168.0.164:6789:/ /mnt/mycephfs it return below error mount error 5 = Input/output ...
3
votes
2answers
18k views

Boot into Ubuntu from Android Tablet with Live USB Drive

I have an Android ASUS Slider tablet. I have successfully installed UBUNTU to an 8GB thumb drive. I would like to boot into the thumb drive the same way I do with a windows system except I would like ...
1
vote
2answers
4k views

How to install heartbeat?

I need to setup a Linux cluster. For that, heartbeat is used in CentOS. Is there a heartbeat package for Ubuntu as well, and if so, how can I install it?
2
votes
0answers
45 views

apt-get -f install removed nearly everything

In an attempt to install some statistical software (SAS), I attempted to install virtual box while running in Ubuntu 12.04. I was unable to do so and prompted to use apt-get -f install which I did. ...
1
vote
1answer
34 views

kill all process greater than some process ID and match with particular name

I want to kill all google chrome process which is run via CRON. */5 * * * * export DISPLAY=:0 && google-chrome --app=http://localhost/runmysql.html so the process which has lower process ...
1
vote
3answers
6k views

Fans running very fast on MacBook Pro 8.1

I installed Ubuntu 12.04 on Macbook Pro 8.1 and one of the first things I noticed was that the fans were starting to spin very fast every few minutes for 10-30 sec and then going back to normal. That ...
2
votes
2answers
4k views

Unable to Connect MTS Mblaze modem in Ubuntu 12.10?

I am using Ubuntu for 1st time and I do have an modem MTS Mblaze in India which I am using in Windows. But when I tried to connect in Ubuntu 12.10 using give default method (i.e. choose country, ...
2
votes
1answer
15k views

How to connect WIFI printer to Ubuntu 12.04?

I'm have just install Ubuntu 12.04 on my PS. I have WIFI printer and I want to connect it to my PC using Ubuntu. So my question is, How can I connect WIFI printer to Ubuntu 12.04? Thanks.
9
votes
3answers
48k views

Why am I getting a “port 22: Connection refused” error?

I am getting a port 22: Connection refused error while connecting to a server. I have both the openssh client and server installed, and they are running. But still there is an error. Please ...
0
votes
1answer
43 views

Making a bootable 12.04 Ubuntu Image on a flash drive

Downloaded ubuntu-12.04.5-desktop-amd64.iso.torrent from http://www.ubuntu.com/download/alternative-downloads. Downloaded Universal-USB-Installer-1.9.6.3.exe from ...
0
votes
2answers
6k views

How to install software raid 0 on ubuntu 12.04 server with mdadm?

I need to install a software raid-0 array on a Ubuntu 12.04 server with mdadm through commandline (SSH). The drive setup is as follows: SDA = OS SSD SDB = HDD for raid 0 SDC = HDD for raid ...