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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LIVE USB has error Grub Rescue

my issue is NOT ubuntu 14.04 LTS installed on HDD. my issue is live usb getting error on boot "no such device: ..... grub Rescue > " i know people say just format and remake whole live usb again. i ...
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9 views

linux installer does not detect installed windows 7

I try to install linux ubuntu on my laptop alongside windows 7 x64, that are already installed. I use bootable usb flash. When I am from live usb in Linux I can see all my windows files, but the ...
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1answer
12 views

Load Images and play Videos online using linux terminal

I am using ubuntu 12.10 and I am browsing website using w3m module. But this module cannot shows images and play videos. Is there any way to load images and play videos in linux terminal?
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2answers
17 views

What to do when “apt-get update” gets stuck in 100%?

I'm setupping a VirtualBox VM to do my development work with Ruby on Rails. My problem is that apt-get update is taking very long, ~30 minutes instead of seconds. I can install things with apt-get ...
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1answer
13 views

Any similar alternative of YUMI in Mac OS X? [on hold]

I want to create a portable Ubuntu pendrive—without installing it—but wherever I search, I cant seem to find a alternative to YUMI. Any idea or instructions to get the same result?
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2answers
12 views

How I can create a multiplatform portable pendrive of Ubuntu?

The goal is to carry a pendrive with your personal files and ubuntu. Just plug in a computer an boot it. Is this posible? Across Mac/Windows/Linux?
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1answer
37 views

Is it possible to compress a full file system on Linux?

On Windows I can use NTFS drive compression to save heaps of disk space; usually 30%, often much more. It also improves read and write speeds at the cost of higher CPU usage; which isn’t an argument ...
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11 views

No value for $TERM and no -T specified

I recently upgraded (with apt-get dist-upgrade) my Kubuntu and Lubuntu linux boxes, and now every time I start one of these machines, I get this message: tput: No value for $TERM and no -T specified ...
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5 views

hub 3-0:1.0: couldn't allocate port 9 usb_device

I have a motherboard Asus H97-Plus, and recently, don't know why, everything has gone mad. The bios took 4 minutes to load before displaying, then I had GRUB (I could select Ubuntu 14.04), and then ...
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9 views

How to reduce AWS EBS root volume size?

I’d like to reduce an Amazon Web Services (AWS) EC2 instance Elastic Block Store (EBS) root volume size. There are a couples of old high level procedures on the net, but I’m unable to find a detailed ...
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4 views

How can I make default Vagrant storage a fixed size?

I use Vagrant with VirtualBox provider. When I execute vagrant up in my terminal I had a Dynamically allocated storage at the end of execution. How can I change --variant option to the Fixed storage ...
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13 views

Can't access static IP ubuntu server

I am running an Ubuntu server 14.04 LAMP server within Hyper-V. When using DHCP, everything works. The moment I change it to a static ip by modifying the contents of /etc/network/interfaces to ...
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6 views

SVN Backup and Restore

I am trying to take backup and restore Remote SVN using svnrdump because we don't have an admin SVN console. I need a incremental backup so it will take less time. I am using the following command ...
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1answer
16 views

MongoDB manually preparing for upstart but not running

I am on Ubuntu 14.04.1 LTS. $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty Instead of using the system ...
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1answer
13 views

Updating OpenGL on Ubuntu

When trying to run Portal 2, I recive this error: SDL video target is 'x11' SDL video target is 'x11' SDL failed to create GL compatibility profile (whichProfile=0! SDL failed to create GL ...
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16 views

Video playback from remote filesystem lag on Ubuntu

I have laptop running Ubuntu 14.10 and used for watching movies from my server. I've installed vlc player but faced with the bug: At approximately 40 minute (can ve different for various videofiles) ...
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13 views

How to increase space for ubuntu

I have installed Ubuntu in my laptop along with Windows 7. Initially I alloted only 20Gb and installed it. Now I need to add 30GBB more to it. How can I do that? I am new to Ubuntu. ...
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1answer
18 views

Cant launch Portal 2: Failed to load the launcher (libuuid.so.1: cannot open shared object file: No such file or directory)

I got a new computer downloaded Steam, and purchased Portal, and downloaded it to both my old computer and my new computer. It launched instantly on my old computer, but, refused to launch on the new ...
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7 views

VirtualBox, shared folders and npm modules

I'm had tried to install some npm modules and got a problem: vagrant@vagrant-ubuntu-trusty-64:[path/to/shared/dir]$ mkdir newDirectoryName mkdir: cannot create directory ...
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2answers
12 views

Lenovo X201 screen - black now green

My trusty Lenovo X201 (running Ubuntu 14.10) has developed a problem with the screen. The colour black is now green. Initially, I could make the problem go away by moving the screen back and forth but ...
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5 views

slow vnc runnig mate desktop

i have a vps running ubuntu 14.10 with 4 gb ram 3 cores processor and 50gb disk i installed xfce lubunut and finally mate desktop environement but it was slow i found a post that For faster remote ...
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14 views

Can not login through “ubuntu” option but can login through “ubuntu 2D” option

My system is Ubuntu 12.04 LTS. Since updated, every time I input the right username and password and hit enter using Ubuntu entrance, I got bounced back to the log screen. But other entrances are ...
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1answer
21 views

Apt doesn’t seem to update package sources when attempting to install Mono on Ubuntu 14.04

I’m currently tinkering with Ubuntu 14.04 LTS in a virtual machine. I have been having success with getting my Samba server set up correctly and I have also set up my FTP service. So the next thing I ...
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1answer
8 views

How do I boot into Xubuntu after dual booting along-side Windows

I recently installed Xubuntu 14.04 from USB on a netbook running Windows 7. It installed fine, but before I restarted the machine, I removed the USB stick (out of habit). I couldn't shutdown the live ...
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10 views

Why is system removing working packages?

I noticed that my system (Elementary OS, based on Ubuntu 14.04) is trying to remove working packages through auto-remove. Running auto-remove makes system unusable, reinstalling packages do nothing, ...
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13 views

Mark file icons with emblems like in Ubuntu in Windows

A while ago I was playing with an older version of Ubuntu, which allowed me to mark the files with an emblem that appears on top of the file's icon. I'm wondering if I can do the same thing in ...
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1answer
25 views

Problems installing Ubuntu in VirtualBox

Whenever I try to install Ubuntu 14.04 in Virtual Box some strange codes pop up and no matter what I do. Am I doing something wrong? A few hours before I successfully installed Windows XP SP3, but ...
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1answer
22 views

How to make clicking a link in external app use running firefox profile

I use more than one firefox profile on Linux. If I click on a link in an external application, instead of opening the URL in a running browser window, I get a firefox profile manager dialog. How can ...
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2answers
31 views

ssh connection between two local computer

I'm trying to establish an ssh connection between my personal computers, connected with LAN and Wi-fi to different networks. Let's call them computer A, with Ubuntu 14.04.2 LTS, connected with LAN, ...
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13 views

Running upstart as non-root user not working in Ubuntu 14.04 LTS

I realise a similar question has been asked before but the solutions aren’t working. I think its because I'm running a multi-line exec call: script exec start-stop-daemon --start --chuid sbprod ...
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2answers
20 views

Can a Wi-Fi device be a WAP and provide internet connectivity simultaneously?

I’m working on a project where we are using two Wi-Fi dongles, one to provide a WAP and the other for connectivity. However, setting this up in Ubuntu is a royal pain. Is it even possible for one ...
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17 views

Why would we need to restart network interface periodically?

Occasionally, one or more machines in our 20-node server room here at U. Washington will start lagging, to the point that SSH connections into it takes minutes or just stall. Some high-level effects ...
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2answers
17 views

How to save matching words from output of dmesg in a list

I am connecting USB-Serial devices to my device using different ports and serial-USB devices sometimes show up as 'ttyUSB0', sometimes 'ttyUSB1' or 'ttyUSB2'. How can I write a script to extract all ...
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2answers
30 views

Ubuntu 14.04 Terminal command to find all specific file types

What is the command in the Terminal for find all files of a specific file type? E.g., all jpegs. I'm looking for a global search similarly to that on Windows/MacOSX where you can find all files with ...
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9 views

Gnome 3: when re-attaching secondary screen, why is it fuly dimmed?

When detaching my laptop from it's external monitor, lwandering around, and then re-attching it, even when it reboots, it recognizes fine that I previously set the external Monitor as primary, but it ...
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1answer
27 views

How to move cursor while clicking the touchpad?

I recently installed Ubuntu 14.10 and I really dislike the touchpad behavior. For example when I try to move a file I'm used to do it by clicking on the file with one finger and moving it with ...
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9 views

Mouse issue with Synergy and dual monitor on Linux client

I have 2 laptops, one Windows 7 machine and one Ubuntu 12.04. Both computers have secondary monitors above each computer. The Windows machine is the Synergy server. I can move my mouse to both ...
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23 views

Combine free space Ubuntu

I want to "merge" or combine a free space that i have on my main Ubuntu partition, i have tried with Gparted but i can't resize the main partition. This is the results of fdisk -l: Device Boot ...
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2answers
39 views

How to make sure that repositories added to Linux Mint are safe and secure [on hold]

I’m using the latest version of Linux mint which based on Ubuntu, I have installed many programs by adding a new repository to the list of checked repositories. Now I’m worried of how safe these ...
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14 views

Ubuntu 12.04 doesn't see the second monitor

I've got vanilla Ubuntu 12.04 lts, GeForce GTX560 and Core -i7 2600's integrated card (on desktop based on ASUS P8H61-MX). The system seems to detect NVidia videocard (lspci shows that there is ...
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1answer
25 views

tmux / screen ctrl+arrow (left right) doesn't work on SSH

I've configured tmux to skip words on Ctrl+right / left : set-window-option -g xterm-keys on It works just fine, but as I do SSH, it doesn't work and prints ;5D or ;5C.. The same issue occurred ...
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1answer
22 views

Missing WIndows 8 entry in Grub2

http://paste.ubuntu.com/10418271/ I am install Ubuntu alongside Windows8. 1) Should I setup UEFI or legacy support in BIOS setting 2) I used boot-repair but Windows entry is not showing up.
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1answer
28 views

File move issues within share - Windows 7 client, Ubuntu 14 Server

We've got a setup where files are shared from an Ubuntu 14.04 server to Win 7 clients. We're struggling with an issue moving files around sometimes. It goes something like this: Create new ...
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1answer
19 views

Can't sudo because password is disabled

So, in my attempt to prevent the default ubuntu user from logging in, and to prevent the default sudo user me from logging in with a password, and thus enforcing to use the private key, I managed to ...
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0answers
12 views

Tomcat startup failure with no error output in log that I can find

Sorry, this is long, here is a brief summary: I installed tomcat7 on an Ubuntu 14.04 VPS, it worked (serving the "tomcat was installed" page) until I changed the group owning /etc/tomcat7 to tomcat7 ...
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1answer
9 views

tightVnc Viewer: no connection could be made

I have a VPS running ubuntu 14.10, I correctly installed VNC which ran fine for one day. However yesterday when I tried to connect to my VNC using tightvnc viewer it said no connection could be made ...
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10 views

what mount points can be ro on an remote headless linux box? [on hold]

I have a linux box running headless and I can't ssh into it. It runs some binary X i wrote and occasionally performs system update by flashing a complete disk image to a backup root partition B. I ...
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1answer
12 views

SanDisk Sansa device on Ubuntu: where did the music go?

I have an old Sansa Clip mp3 player that I used to use. I dual-boot Windows and Ubuntu, and I know that the Clip works just fine on Windows and that there are a variety of questions about the Sansa ...
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9 views

How to remove entries from lsblk? [migrated]

I have an AWS EC2 instance and I tried to attach and mount couple of EBS volumes on it. Somehow mount command was taking very long time so I deleted those volumes using AWS console. Now problem is ...
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1answer
26 views

Ubuntu 14.04 does not boot from USB

I have emachines e732g, SSD with windows 7 64 and HDD, on which I want to install Ubuntu 14.04. I try to create liveusb with help Universal-USB-Installer and unetbootin-windows-608. But my BIOS does ...