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

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Help! Rails and Ruby Entirely Gone after trying to free up space

my ruby on rails installation is completely gone after i tried to free up some space on my ubuntu 12.04 i ran the following commands and when i restarted ubuntu, typing rails in the terminal says gem ...
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1answer
31 views

How do I specify a CIDR IP range to nmap in python?

I have this function: if subnet==16: nm = nmap.PortScanner() a=nm.scan(hosts='172.16.2.0-256', arguments='-sn') for k,v in a['scan'].iteritems(): if ...
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10 views

I Want to install Ubuntu in my Asus eee pc [duplicate]

I want suggestions on installing Ubuntu on my Asus eee pc laptop, it has intel atom 3.2ghz equaling to dual core processor with 1gb RAM and 320gb HDD. currently I have installed genuine win 7 ...
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2answers
54 views

Kill processes by name

I have got python http server. OS - ubuntu server 12.04. Some time i need to kill all python http processes. I use this command sudo killall python But it kills all python processes. Is it possible ...
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29 views

Dell e6410 touchpad stopped working

My touchpad has been working fine all this time but suddenly it stopped working. I'm on ubuntu 14. The xinput list shows the touchpad Virtual core pointer id=2 [master ...
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42 views

Problem, cannot set brightness on Lenovo Z570

My problem is that I cannot set brightness using fn+arrows and any other way. I'm currently using elementary os base on 12.04 and that problem is not showing, but on every ubuntu with higher number I ...
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1answer
27 views

How to solve this issue while updating?

I have the following error message: E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/ E: Could not get lock ...
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1answer
46 views

how to install MPLAB X IDE v3.00 Beta in ubuntu 12.04?

I am using ubuntu 12.04 version and tried to install MPLAB X IDE v3.00 Beta. but I can not install it. the downloaded file as .tar format(if I open the .tar file it have .sh formate). how do i install ...
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37 views

Extremely poor performance in Ubuntu Server 12.04.5 LTS

I am trying to host a Minecraft server in Ubuntu Server 12.04.5 LTS. For some reason, my computer responds extremely slowly to any executed command or process. When starting up, it can take anywhere ...
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0answers
10 views

Ubuntu 12.04 system hanging when connecting external monitor

Ubuntu 12.04 is hanging when connected with the external monitor. I have installed disper, ARandR. Do in need to install any ubuntu driver or package to make it work when connect to external ...
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2answers
43 views

Windows can view directories but not ubuntu

Ok. I know i messed up by hibernating one OS and working in other. As i remember i hibernated the Ubuntu. Now a lot of directories are not showing up in ubuntu. But shows up & works in Windows. ...
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52 views

Google Chrome installation failed on Ubuntu 12.04 LTS

I have only recently started using Linux and Ubuntu. I have in the past always had Windows computers. All I want to do is be able to watch Netflix on my computer but as you know you need to download ...
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27 views

Failed to install snort

output: ERROR: The dynamic detection library "/usr/local/snort/lib/snort_dynamicrules/pua-p2p.so" version 1.0 compiled with dynamic engine library version 2.4 isn't compatible with the current ...
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1answer
28 views

Is there a safe way to unplug Bluetooth adapter in Ubuntu?

I have wondered about that a lot, is it safe to just unplug the Bluetooth Adapter just like because in Windows we use to have The Safety Remove option and for USB drives or SD card I can unmounted ...
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1answer
22 views

How can I install the module gateways and find the adress of my routeur

I want to determine the address of my router using a python code. I've found that I can use this method netifaces.gateways() after the installation of the netifaces library. But my problem is: ...
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2answers
38 views

Why Firefox always gets upgraded and Chromium web browser don't? [duplicate]

Why Firefox always gets upgraded to the latest version available and Chromium web browser don't get upgraded to the latest version available? they are both open source software. I'm using Ubuntu ...
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0answers
8 views

How to get the Disk space and Services info by snmp in ubuntu 12.04

I have configured the snmpd on my local system, and i want to know the my system info via snmp how can i get it.
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25 views

NO_PROXY environment variable limit

I'm setting NO_PROXY and no_proxy environment variables in a Ubuntu 12.04 LTS box. From this VM I should create a template. Each environment variable is composed by more than 1000 entries (basically ...
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22 views

Cannot disable kernel updates

I have Ubuntu 12.04 LTS. Update manager will try to update the kernel version, unfortunately this causes issues with certain applications/drivers I use. Each time I have to manually deselect the ...
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1answer
33 views

How can a specify specific bluetooth adapter?

How can I get the bluetooth UI to use a specific bluetooth adapter when more than one is available? My laptop's built-in bluetooth adapter has glitches. So I bought a USB bluetooth adapter. I'm able ...
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1answer
32 views

Cannot install package subversion from deb file

On Ubunut 12 VM, I am trying to install svn 1.7 taken from wandisco website. I am using the deb installation file and command line. I get a dependency error: john@ubuntu:~/Downloads$ sudo dpkg -i ...
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18 views

Brightness cannot be decreased remains maximum everytime

In my Laptop lenovo Z570 brightness is set to maximum by default during startup and i cannot decrease it.Can anyone help me out in solving this issue.
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1answer
64 views

How can I get the MAC addresses of machines using python-nmap?

How can I get the MAC addresses of machines using python-nmap? I'm using python-nmap to scan my local network, I can get the ip of several systems but not their MAC addresses. How can I get the MAC ...
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1answer
13 views

Time rest issue after machine reboot

I set a particular time in my VM machine which is containing Ubuntu 12.04 using some command. Time got changed soon after the command got executed, but if I reboot machine time is resetting back(which ...
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23 views

Shell Script whenever i am SSH it will change my terminal title bar according to that SSH ip

I'm not much expert in shell scripts. I want a shell script, that, whenever I am inside an SSH session, will change my terminal title bar according to the server IP address.
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27 views

ping working but browsing not working in ubuntu 12.04

In the terminal, to ping to yahoo.com works well. - any website In the browser, to visit yahoo.com is not working. - any website 'telnet yahoo.com 80' is not working, too. When I reset the network, ...
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1answer
30 views

error when opening “An error was encountered while saving the command history”

I installed matlab on my linux machine but on a media drive /media/d/usr/local/MATLAB/R2014b but when I open Matlab I get the below error, so if anyone could please advise how to solve this: An error ...
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67 views

Unable to install Google Chrome - 12.04

I recently downgraded from Ubuntu 14.04 to 12.04 because my keyboard/mouse kept locking up while watching Netflix and it was getting really annoying being unable to pause or do anything without hard ...
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27 views

How do I use the RAID array in 12.04 LTS

extreme tenderfoot here. Have installed 12.04 LTS on SSD 64 Gb have 4x80 Gb HDD's. Would like to boot from SSD and use the RAID for well large files, low to moderate games, and occasional ...
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23 views

New battery, computer turns off too early

I bought a new battery (which is a different type of battery than the one I had before) for my laptop Dell inspiron 1545 where I am running ubuntu 12.04. However, when I am running without a cable, ...
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43 views

problem installing ubuntu 12.04 precise

I am trying to install Ubuntu 12.04 on my PC but in vain. I tried the 14.04 it doesn't work neither, the 13.04 too. I try to install them using a USB drive, when it comes to the menu (install along ...
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8 views

Correct ratings in Griffith

On Ubuntu 14.04 I'm enjoying Griffith Movie Manager. It's a great application indeed. I would like to customize the application to see the movie Ratings (from IMDB) as its actual value. For example, ...
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25 views

putty serial confi

I have Ubuntu 14.04 and Windows in my laptop I connect an ARM cortex (LPC1768) to a USB port I use PuTTY for communication with ARM. PuTTY configuration in Windows is serial 9200, stop bits ...
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3answers
45 views

How to dump user's environment into a file?

I want to dump all user's environment into 'env.log'. Please tell me the command to do this.
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12 views

Need help for kernel compile

I am trying to learn device driver programming. for that i need to install kernel source tree. here i am I find the error when i try compile the kerenl. -- Copy our flavored configuration file back. ...
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1answer
87 views

UEFI bootable USB with Ubuntu 12.04.5 LTS (amd64). (this is not duplicated question:)

I downloaded official ubuntu 12.04.5 LTS (64bit) ISO file and using my desktop Ubuntu (latest 14.10) and Startup Disk Creator I created bootable USB installation media. It all worked fine installing ...
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I can't install Ubuntu on a Dell latituide D600 [duplicate]

I get This error message: ERROR:PAE is disabled on this Pentium M (PAE can potentially be enabled with kernel parameter "forcepae"- this is unsupported, may cause unknown problems, and will taint the ...
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51 views

ata driver issues in 14.04?

Is it possible that ata driver changes between 12.04 LTS and 14.04 LTS could make a specific hard drive model and integrated SATA motherboard controller incompatible with each other? I have 2 Western ...
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30 views

authentification failed no machine client

I have a vps running Ubuntu 14.10. I installed no machine v3.5 client and server and node. When logging in from windows, no machine client says "authentication failed". Here are the log files: ...
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9 views

Transfer files from ubuntu to remote laptop vista with rdp

I am away from home on my laptop (vista) which connects to my ubuntu 12.04 desktop by RDP. I have files on my desktop I want to download to my laptop. Dropbox broke so I need to see if there is ...
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21 views

Package dependencies problem while installing VLC

I am trying to install VLC and I am getting this error, what does this mean? What do I have to do to resolve it?
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1answer
16 views

software-center diplays info on apps that i have not installed

While installing a deb file using software-centre the following info is printed on the terminal 2015-03-07 14:05:22,035 - softwarecenter.db.update - INFO - skipping region restricted app: 'Just Play ...
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1answer
45 views

Delete all Ubuntu partitions and reinstall again

I have messes up ubuntu twice, and reinstalled it again after that. THis has created two ubuntu partions on my drive. Is it safe to remove all these partitions from windows, and then reinstall using a ...
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1answer
24 views

GNOME Shell 3.4.1 change shortcut to navigate between applications (Ubuntu 12.04)

I want to change the shortcut to navigate between applications on my Gnome shell 3.4.1 from Alt+TAB to Super+TAB ( Since I RDP to a windows box sometimes and it "eats" away the ALT+TAB) I followed ...
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1answer
26 views

download no machine v 3.5

I am looking for no machine version 3.5 for Ubuntu 14.10 64 bit. I did install v4 before and it's not stable and watching videos is a little bit slow. I read that 3.5 is better and is there a ...
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18 views

ubuntu 12.04 / Could not write bytes: broken pipes

i installed ubuntu 12.04 LTS yesterday on my new thinkpad netbook. By starting the netbook i see a three line message : could not write bytes: broken pipes could not write bytes: broken pipes could ...
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10 views

Unable to locate package libl1-mesa-dri:i386 and libl1-mesa-glx:i386 and libc6:i386 version 12.04

I am running Ubuntu 12.04 32Bit and I am trying to download Steam but on the last steps for some reason it can't locate some packages. I press enter to continue and it says missing package ...
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1answer
50 views

apt-get: unmet dependencies, but dependencies can't install

I'm in a spot where Ubuntu 12.04 LTS wants to do a dist-upgrade, but I can't do anything because /boot is full. ~$ df -h /dev/sda1 228M 227M 0 100% /boot I want ...
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29 views

What's an alternative to Ubuntu with HD4650 fglrx support?

I'm using Ubuntu 12.04.1 with fglrx drivers on it. With fglrx enabled my laptop overheat after a little and it goes into protection mode. That happens even if I do not strain it with complicated ...
2
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1answer
49 views

can't find package crontab-ubuntu 12.04

I am trying to install cron for scheduling and before anyone says duplicate, I have tried the methods of sudo apt-get update and upgrade mentioned and they don't work. When I go to install crontab, ...