Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

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Different behaviours of Gnome Screensaver

When locking the screen using gnome-screensaver-command --lock (assuming that gnome-screensaver is running): If the session is Gnome, it shows a blue screen with a very large clock. If the session ...
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How to set four virtual desktops in Windows 8.1 like Ubuntu?

I have started use Windows 8.1. I want to use four desktops like Ubuntu. It is possible?
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Can't auto connect to samba drive on login?

I have a old PC running Ubuntu server with samba and for some reason, my mac cannot connect to it automatically on login. I added the volume to the login items in system preferences but every time I ...
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How to boot Linux with extlinux

Anyone knows how to boot Linux with extlinux? I've exhausted my google search but still unable to figure out what's the proper way to setup extlinux to boot Linux. All hits that I found talk about ...
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32 views

The extreme-flat theme for Ubuntu 14.04

I saw a extreme-flat theme for Ubuntu 14.04 somewhere. Can anybody tell me how can I install this theme?
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1answer
29 views

Connect 3 laptops

I am working on a problem but not able to solve it. It goes like this I have 3 laptops, laptop1 is connected to wired network , laptop2 is in having wireless connection with laptop1 , laptop3 is ...
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hard drive detected internally but not externally

I have an acer laptop with a WD hard drive I have been using for about a year. Of late I noticed my system slow down dramatically. Further inspection revealed that the hard drive was going bad. The ...
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2answers
18 views

Unformat laptop windows drive using a bootable ubuntu usb stick

I would like to recover the hard drive on my laptop which had windows 7 but was formatted. Assuming I have an Ubuntu live usb stick, how can I unformat the laptop's drive? Notice I rather not open ...
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6 views

rdesktop into windows 2008 server refuses password

I have an ubuntu 12.04 box and I need to remote desktop into a remote windows server to manage. However, using rdesktop my password is always refused like it is not typing correctly in the password ...
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7 views

Booting livecd from external USB not working (no power?)

I have a usb hard drive with ubuntu 12.10 partition on it, but I can't seem to actually boot into the livecd. I can get to the grub menu, and I select "Try without installing", but then the screen ...
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1answer
16 views

Linux (Ubuntu) CIFS mount with restrictive umask

I'm trying to mount a NAS share using CIFS in Ubuntu 14.04. This is my personal share and I'd like to make sure that files are readable only by me and not by anyone else logged in. So ideally, I'd ...
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19 views

WIndows 7 cannot access Samba share

I have an Ubuntu-server running as a file server using Samba and it also acts as a print server via CUPS and media server via Serviio. All was good for the last few months and now suddenly one of my ...
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36 views

Ubuntu lost Sudo password

After a disk crash someone reinstalled Ubuntu for me. My su password works. They said they used no sudo password, but that doesn't work, and nothing else works. Can I reset the sudo password from ...
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What kind of extremely exhaustive calculations my laptops perform and why?

I have two laptops that I bought in 2013. One of them is running under Windows and another one has Ubuntu. I do not play video games, do not perform any calculations on them. The only thing that I do ...
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1answer
28 views

Successfully installed Ubuntu but unable to load it in the system

process : 1)inserted Ubuntu Bootable Pen Drive 2)Selected 3rd option i.e Something else 3)than deleted C drive ( drive containing Windows)out of which i made 63GB unusable , created 15 GB ext4 - ...
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Ubuntu cant swap between windows of same application

I have downloaded Ubuntu 14.04 LTS , I tried code blocks and eclipse and I have the same problem which if i opened create new project in code blocks it appears when i click Alt+` but it doesn't select ...
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9 views

USB mouse gets stuck on top right corner

My USB mouse every now and then (which means pretty often :) gets stuck in the top right corner of the screen with no apparent reason. If I unplug and plug back the USB cable, then it resumes working ...
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2answers
22 views

Old hard disk does not load OS

I have this old computer but upgraded the motherboard and the processor just recently. Everything was already used except for the motherboard, processor and RAM. The rest, was already used, the hard ...
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Ubuntu freezes when I plug in external hard drive formatted as exFAT

What can be hanging up my system. I thought I went through the necessary steps to enable mounting of an exFAT-formatted hard drive: # Install fuse-exfat and exfat-utils sudo apt-get update sudo ...
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Keyboard intermittently stops working on Ubuntu

I am running Ubuntu 12.04.4 LTS on my desktop and my keyboard will occasionally stop responding for a few seconds. It immediately begins about a second or so afterwards, so nothing freezes. Just now I ...
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24 views

Not able to send mail via Ubuntu VPS

I'm having a Ubuntu VPs with zpanel isntalled on it. There is something wrong going with the mail. Im not not able to receive the mails from my contact form on my wordpress site ( the site is hosted ...
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6 views

How can I auto mount a CD or DVD to the same location/path every time?

I am running Linux Mint 13 and I am enjoying the convenience of having a CD or DVD automatically mounted after I insert it (to some mysterious place). I have converted this machine to a headless ...
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36 views

Recommendation for a linux virtualization homemade open-source server build [on hold]

I'm looking to built a central virtual server with XenServer for a couple of Debian and Ubuntu server and I was wondering what you guys think of it. What is your recommendation, criticism, et cetera. ...
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37 views

How to kill all processes returned by pgrep

I need to kill a few Python processes. I can get a list of the process numbers using pgrep python, but how can I kill them all at once instead of killing one by one? I'm looking for something like: ...
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1answer
9 views

Ubuntu LiveUSB not booting in HP laptop

I am using a HP Pavilion laptop pre installed with Windows 8. I am trying to install Ubuntu 13.04 on my laptop using a LiveUSB, which I created in the conventional way given on the Ubuntu official ...
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2answers
22 views

“Install” virtual machine guest os on host os

I have a host OS running Windows 7 and guest OS running Ubuntu on Virtualbox. What if I want to "install" my image of Ubuntu virtual machine as ordinary Ubuntu installation. Is it possible and how?
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cd command has stopped working in Ubuntu

After installing gem files on my system, cd command has stopped working and throws the following error when I try to open any dir robus@lucy:~$ cd /starterkit -bash: cd: /starterkit: No such ...
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302 views

What's the terminal command for auto pressing [Y]?

for ex: if I do like sudo apt-get upgrade Then I might get the y/n question before installing an update. What's the parameter to auto accept it.
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Is it possible to spawn any kind of terminal on dedicated lan card before entering LVM volume passphrase?

I got IBM x3500 m2 server running Ubuntu server on encrypted LVM volume. This machine has one slower LAN card for service purposes. Is there any way to spawn some kind of console on it BEFORE ...
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1answer
10 views

Undocumented default values for sudoers' env_keep variable

I'm experiencing some strange behaviour. My sudoers file is very short and looks like this : Defaults env_reset Defaults mail_badpass Defaults ...
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1answer
25 views

How do I set a RAID array as a /home mount point on Linux?

I need to create a file server using Ubuntu Server 13.10 with the following specifications: 1 80Gb HDD: grub boot manager System files apache server files 2 identical 1000GB HDDs: RAID 1 array ...
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10 views

Getting “Server unexpectedly closed network connection”

I created VM by using Jclouds API and by giving the public address in putty login into the VM. I tried to install GUI in VM by giving the below command sudo apt-get install ubuntu-desktop It is ...
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2answers
33 views

Just recently change /etc/network/interfaces to static IP, apt-get not working. How to check for errors?

I recently just updated my /etc/network/interfaces file to set a static IP address. Seems other computers can access the computer using the network IP address but I may have broken something - now ...
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27 views

Unable to connect Ubuntu remote machine

In Ubuntu I've installed Tomcat and deployed the web application. I started tomcat and trying to access from Windows like below http://54.85.125.1:8080/manager Error could not connect to ...
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Grub4Dos and /boot/bcd error

I am running Ubuntu 13.04 on my laptop (SSD drive) and recently bought another HDD (second drive) installed in place of CD-ROM. What I want to achieve, is to have Ubuntu as primary OS and ability to ...
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1answer
17 views

find . file -/+ size except *.filetype

Alright what I am looking for is a way to do something that can find all files less than size except filenames with an extension or more. May be more than one. find . -type f -size -20M -name /! ...
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1answer
24 views

Install Ubuntu server on one computer, then soon as possible control it (via terminal) through another

I tried to set up a home network the other day, and wanted to set my old computer up as a file server. So, I installed ubuntu server on it. Once installed and logged in, I realsied that some of the ...
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23 views

How do I remove the old versions of the linux kernel shown in grub boot loader

I am using Ubuntu. I have Linux kernel 3.8.0-35-generic, 2.6.34.14 and 2.6.34.14. I want to delete the 2.6 versions from my system, because 2.6 won't even load when i select them in grub boot loader. ...
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VIDIOC_STREAMON: Invalid argument

I am working on a project using opencv to capture and analyse video. If the program crashes at any point while capturing webcam images, I would get the following error on the next run: ...
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64 views

How to know if you are using Ubuntu or Debian? [duplicate]

I know Ubuntu is based on Debian but I would like to find out if I am running debian or ubuntu. Uname: uname -a Result:Linux test 2.6.18.8-x86_64-linode10 #1 SMP Tue Nov 10 16:29:17 UTC 2009 ...
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1answer
15 views

Create an ISO image from a virtual device image

Oracle VM -> ISO I am using Oracles VM VirtualBox to good effect and have created several ubuntu machines created from an ISO image. My question is that I now want to go from a VM machine to a real ...
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IDE for Bash shell scripting on Ubuntu?

I'm probably looking for the Holy Grail here, but I figured I'd ask. Is there an IDE for Bash shell scripting on Ubuntu (Ubuntu 12.04 in my case)? Something with a code editor that lets you set ...
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1answer
26 views

How to install i386 package under amd64 ubuntu/debian

All existing answers I found are for the pre-multiarch era (chroot) https://help.ubuntu.com/community/MultiArch says it is OK to install i386 package on amd64 under the multiarch environment, but ...
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1answer
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Why I can't see Ubuntu restricted packages

I don't know what else restricted packages are there, but I'm looking for the sl-modem-daemon package, which according to ...
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Upgrading from OpenGL 3.0 to 3.3+ on Ubuntu Linux

I recently made the switch from Windows to Ubuntu (because I am becoming more of a game developer than a game player), but quickly found out that my OpenGL version was downgraded because of the ...
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My PC (w/ Windows & Ubuntu) not responding to keyboard and mouse input

I have an old Acer Aspire 3100 running Windows Vista. I have put Ubuntu on a Live CD (actually a DVD R). When I boot into Windows, I get no keyboard and mouse input in Windows (Windows doesn't even ...
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2answers
25 views

Problems Installing from Windows 7 USB

I asked this question at askubuntu and they directed me here. Just like this mans problem: http://askubuntu.com/questions/396578/why-cant-i-boot-from-my-windows-7-usb-device-usb-install Originally ...
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1answer
20 views

Booting PC that won't boot Windows w/ Linux

My old laptop, an Acer Aspire running Windows Vista Basic Edition, will not boot up. When I power it on, I see a blank black screen 90% of the time (but it 'lights up' if you know what I mean, the ...
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28 views

Why has Ubuntu minor version number 04 or 10 only?

Why if an Ubuntu with a new major version is to be released the minor version is automatically 04 (and 10) for updates?
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40 views

Ubuntu root permission denied

I am trying to setup a Ubuntu 12.04 LTS with chef. I am getting this error, which I'm assuming is related to my user permissions: Chef Client failed. 3 resources updated in 5.613887095 seconds ...