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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Ubuntu hang up before login screen

On my Ubuntu 14.04 x64/Win 8 dual boot system (traditional via grub), Ubuntu won't run any more... The boot process seems correct, but when the login screen is about to display (Ubuntu logo shown with ...
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17 views

Input/Output error while installing Ubuntu 14.04

Hi there I was trying to restore my Dell Inspiron 3543 to factory state after accidentally loosing my data using Dell's factory image that I backed up when I first bought the laptop. I am facing ...
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2answers
42 views

bash No space left on device

On VPS when I press tab under my user I get: bash: cannot create temp file for here-document: No space left on device but it works fine under root, what's happening?
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1answer
25 views

Why does Chrome cause very high GPU load in full screen?

My operating system is Ubuntu 15.04. Since a few weeks I have an annoying problem with google chrome. Whenever I'm switching to full screen mode - be it a video, a flash application or anything else - ...
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0answers
12 views

Screenshot will not copy to clipboard in Ubuntu 14.04 Unity desktop. How can I fix this?

I have been able to take screenshots without issue until today. Now screenshots are being produced but will not copy to the clipboard. If I use the screenshot app and save the image to a file this ...
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1answer
24 views

Which shell script executes first at boot time?

Is there a standard entry point of the shell in Linux? For example I know that /etc/profile get executed at startup, but which is the script that gets executed first? If every distro does it ...
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0answers
17 views

Error installing Safari for Windows on Ubuntu 15 through Wine

I'm trying to install Safari 5 for Windows in Ubuntu 15 through Wine (version 1.6.2). First I downloaded with wget: wget http://appldnld.apple.com/Safari5/041-5487.20120509.INU8B/SafariSetup.exe ...
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1answer
24 views

Recover data from formatted harddrive

I had a dual boot machine with Windows 8 and Deepin linux on it. Last week I removed WIndows 8 and installed windows 8.1. After installing Windows 8.1 grub was removed. I followed How can I repair ...
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1answer
12 views

New HDD mounting and partitioning difficulties

I have recently purchased and installed a brand new 8TB Seagate Archive HDD into my desktop computer, and, using the "Disks" program in Ubuntu, I created one 8TB NFTS partition named "MediaStorage" ...
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1answer
23 views

Linux Ubuntu Password reset

I used the passwd >username< on Ubuntu, and it gave me a list of options. How do I get past them? If I try using the options, it won't let me. Please help. Thanks!
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1answer
21 views

VirtualBox Ubuntu guest has NAT, but no TCP connectivity

First of all, I am using these things: Windows 7 host Ubuntu 14.04 guest (just set this up) VirtualBox 5.0.2 Where I'm at now I am having some issues with my networking settings. Everything is ...
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5 views

How to disable creating device nodes of ldm disks in ubuntu?

Yesterday I've installed ubuntu 14.04 to my mother's home computer. That's really good deal, but she uses windows too to work with documents. This documents is placed on the Windows dynamic disks in ...
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24 views

Touchpad can't be use outside of Windows (10) and sometimes not at all

My touchpad (Elan Smart-Pad) on my Toshiba Satellite PSPRDU-00C003B is only working on Windows now. It had been working with both Windows 10 and Ubuntu but now it only works when running windows. It ...
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1answer
20 views

Error messages when extracting a .tar.bz2 in Ubuntu

While extracting a .tar.bz2 file using the command tar xjf git.tar.bz2 I received error messages that shows Cannot hard link to and Cannot create symlink to What will be the reason ...
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1answer
23 views

How to uninstall/remove ubuntu 14.04 from dual boot windows 8 [duplicate]

I installed ubuntu on a usb and get the option to run either windows 8 or ubuntu @ startup. I just deleted all the files in the install ubuntu folder in the usb and thought that would do the trick but ...
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1answer
10 views

apache userdir - home folder permissions

I have added the userdir module with a2enmod userdir I have configured the following in the sites-available/example.conf UserDir disabled UserDir enabled lazaro UserDir www Then I have created a ...
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0answers
11 views

All screens go black when HDMI is connected on ubuntu

I recently got a new graphics card for my computer with an HDMI connection, a VGA connection, and a DVI connection. This is what i did: I connected a VGA monitor to the graphics card. the monitor ...
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0answers
19 views

Roll back to libc6-amd64 using a live cd and chroot on ssd with GPT filesystem

I was attempting to follow a steam guide to install a dedicated game server. See my original post here. Basically I really messed up. I attempted to roll back but when it downgraded my network ...
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1answer
23 views

Steam and Ubuntu - 2nd HDD (game library) not being recognized until clicked on

So I installed steam and I got a problem each time I reboot. My HDD remains undetected by Steam until its been accessed in Ubuntu 15.04. Thus steam does not recognize the HDD and leaves my library ...
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0answers
12 views

How to pick a different WiFi connection when one drops?

I have 2 WiFI connections available. Sometimes, the WiFi network disconnects, and when that happens, I'd like the system to automatically use the other connection. How can I do this? I'm using a ...
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0answers
23 views

Easy way to kill frozen apps on Ubuntu without hardware reboot

After one of the recent Chrome updates on Ubuntu some parts of this browser (e.g. right-click menus) work really bad. Also, it freezes from time to time. It seems to me that actually all the system ...
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0answers
14 views

Compiling OpenSSH without “consolekit.patch”

I'm currently encountering issues with some tools that connect via SSH to a remote machine (Eclipse's remote deployment) to deploy files automatically. Around 90% of the time, when I initiate the ...
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3answers
20 views

formatting output in bash shell to remove special characters - linux

I am issuing the command below against a logfile grep "Oracle Audit" /var/adm/messages | awk '{print $6}' How do I format the below output Audit[9460]: Audit[10507]: Audit[10507]: Audit[10507]: ...
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10 views

Touchpad unresponsive until X restart

I'm on a Netbook with Mint 13 (Ubuntu-based). It has a touchpad which gets stuck every now and then (it's quite rare actually, but it does happen -- a few times a day). Restarting X fixes the ...
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23 views

Low cost Ubuntu/Cups Compatible Laser Printer [on hold]

I am looking for a laser color printer that can be configured with secure ipp printing via CUPS. I had purchased about 45 Dell C2660dn Color Laser printers. They had a nice web interface that I could ...
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0answers
10 views

Ubuntu Trickle Will Not Open Chrome

I'm trying to open Chrome with trickle to throttle the upload speed so I can test a sites image uploading progress display, but the build in dev tools for chrome only allow throttling for downloads. ...
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8 views

Canvas lms open sourse installation

Hope you are doing fine. I am facing a lot of problem while configuring canvas using ubuntu 14.04 following the steps described in https://github.com/instructure/canvas-lms/wiki/Quick-Start Step 1: ...
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1answer
13 views

Error starting a VirtualBox instance inside an Ubuntu VirtualBox instance

I am trying a Microservices demo that uses Vagrant to start up a VM and deploys software to the started machine. Because the demo is set up for Linux and I am using Windows (8.1 Pro), I am running ...
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0answers
12 views

ioctl() returns EADDRNOTAVAIL when tried to bring down the alias interface eth0:0

root@host# ifconfig eth0:0 eth0:0 Link encap:Ethernet HWaddr ec:9e:cd:0d:80:f4 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Memory:f0540000-f0560000 ...
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0answers
11 views

Linux boot blocked

Good evening, I'm trying to install a faxserver using Hylafax on a Ubuntu Server 12.04 . After install and configuring hylafax-server I've tried to send a fax without success, I decided to turn off ...
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0answers
34 views

Upgrade to windows 10 screwed up my partitions(tables?) on an Ubuntu/Windows dual-boot

I thought windows would just overwrite the bootloader as expected, but something wonky is going on with the partitions too, and I can't access linux. I'm not sure if it's recoverable, but any input ...
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3answers
38 views

/etc/shadow and /etc/passwd privilege - why is it writable

sghk1> id uid=0(root) gid=0(root) sghk1> ls -l /etc/shadow -r-------- 1 root sys 4045 Aug 24 15:52 /etc/shadow sghk1> ls -l /usr/bin/passwd -r-sr-sr-x 1 root sys ...
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2answers
18 views

Cron expression hour 1/12

I'm looking at a system where someone added a cronjob which schedule is like this: 0 1/12 * * * doSomething More commonly, if the hours part in the schedule were */12 then it would execute every 12 ...
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1answer
16 views

Signing Error during kernel compilation

I was trying to compile kernel on my system by following this link http://www.ramkitech.com/2012/04/how-to-compile-kernel-step-by-step.html when I run make command, I am getting the following error ...
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0answers
24 views

OS X right click / define on ubuntu and windows 7

I have been an OS X user for a long time and really gotten used to a lot of features that Apple has to offer. At work I have to keep switching between Windows 7 and Ubuntu 15.04. One of the most ...
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1answer
23 views

how can I jail user in a directory in ubuntu?

I have installed vsftpd in ubuntu. I have created a user in name of ftpadmin by command sudo useradd ftpadmin and I have set its password too, I also have created a home directory for it using ...
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2answers
16 views

How to use the partition of Ubuntu when I have win 7

I have Ubuntu and Windows to run in the past. Windows has broken, so I have to reinstall Windows. I have 2 partitions for Ubuntu that I have installed. I've just installed Windows 7 into the rest of ...
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0answers
11 views

OpenVPN works fine on windows but not everything on ubuntu

I have setup OpenVPN connection on windows and ubunt PCs. there are several websites I should be able to reach with this VPN connection and everything is fin with windows as I can reach them all. but ...
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33 views

Using OpenGL 3.x in Ubuntu 15.04 in VMware

Im using Ubuntu 15.04 in VMware under Windows 10 with an nvidia titan x. While programming I suddenly realized that something is wrong my OpenGL support. Checking with glxinfo I saw the following ...
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9 views

Switch between Qt4 and Qt5 with environment variables

On Ubuntu 15.04 I can switch between Qt4 and Qt5 by installing qt4-default or qt5-default but how can I do so without installing packages? I tried (source: ...
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1answer
17 views

How do I run an application only as long as my home-folder is decrypted?

I've recently started using syncthing, and I've run into a challenge: I have my home folder encrypted on my laptop, and I want to sync folders from inside my home-folder. The folder is encrypted ...
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0answers
8 views

Ubuntu Super+Esc key remap

I am using Ubuntu 14.04.3, guake + guake-indicator as terminal emulator. And I want to remap guake to Super+Esc (or Super+`) keys, but every time after reboot, indicator says that it can't map ...
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0answers
12 views

How get two external monitors on a laptop with one hdmi port working on Ubuntu

I bought a laptop (Lenovo Ideapad U530) and it only has one HDMI and a few USB ports. I have two monitors that both have a DVI and a VGA port that I would like to be able to use with my laptop. I am ...
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1answer
22 views

VMWare workstation 11 on Windows 10 with Radeon 290 dual screen bad performance

I discovered a strange behavior in VMWare workstation since upgrading to Windows 10. My Radeon 290 goes to 2D clocks (300 MHz) and remains there. If I set a guest to full screen the desktop experience ...
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0answers
21 views

How do I figure out a root cause of a zombie process?

A process on a production linux server became a zombie with unknown reason. I wonder if there is a certain methodology to find out what causes it.
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1answer
10 views

Why do a certain directory content's permissions change when shutting down computer?

I'm using the sudo chmod -R 775 /dev command via the terminal for development purposes, but, every time my computer shuts down, all of the directory's contents revert to how they were before the ...
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1answer
77 views

Error handling for automated uploads in Ubuntu?

Every day I need to upload automatically about 100 images with a total size of 4MB. I've used ncfttput and FTP via command line, but sometimes the upload of one image gets stuck with a Connecting to ...
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0answers
12 views

How to prepare clipboard in ubuntu before it will be pasted to anywhere [on hold]

I want to have some keyboard shortcut, which will be work seems like Ctrl+V shortcut, but before pasting some program will run and prepare clipbord. Is it possible in ubuntu? Can anyone help me?
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0answers
8 views

Screencasting from IMX6 to Ubuntu PC through network

How can we do screen cast from the IMX6 screen to Ubuntu PC through network? I tried the gstreamer commands in ubuntu and the screencasting working perfectly in localhost. I used the following ...
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0answers
26 views

scroll bar stuck at bottom of screen

This problem has been occurring since yesterday. My laptop in on dual boot-Windows 8/Ubuntu. As soon as a webpage is opened or some folder is accessed, the scroll bar shoots to the bottom of the page ...