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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How ubuntu achieves pinch & rotate with synaptics, if synaptics doesn't support it?

I've installed ubuntu while ago on my old netbook and pinching and rotation gestures were recognized out of the box. I was positively surprised. Then I changed distribution (and I'm very happy with ...
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2 views

Installing Ubuntu in a new computer

I recently purchased a ThinkServer TS140 (Intel i3-4130; 8GB RAM, 1TB HDD). It comes without any installed OS or drivers. How do I install the Ubuntu OS in this computer? I tried burning the Ubuntu ...
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4 views

Killing VNC Process Manually

I'm looking for a way to reset the display counter for VNC to :1. What has happened is that my server has been restarted without killing the VNC processes first and upon reboot and then starting ...
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3 views

PHP file printed to file

I have my PHP scripts in my public_html file and when I try to run them in browser, the file entire file is printed instead. Is there a way to fix this? I'm not sure if this is a problem with my lamp ...
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8 views

Setting up Wi-Fi using USB adapter on Ubuntu 12.04

I have tried in vain to set up my Ubuntu 12.04 laptop as a Wi-Fi hotspot; it says Your wireless card does not support Access Point mode I had to resort to a USB Wi-Fi adapter, and I purchased ...
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1answer
23 views

GRUB Bootloader not loading

I had 2 partitions Partition 1 - Ubuntu Partition 2 - Empty So I installed Windows 8 on 'Partition 2' and now I can't load the Ubuntu OS as it directly loads Windows. How do I get back the Grub ...
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14 views

Basic conversion of sequence of images to avi with avconv

I'm trying to convert sequnce of images to small avi. Each image should be shown 2 seconds. I'm using this basic command sudo avconv -r 0.5 -i test%05d.jpg out.avi I get the output, but it shows ...
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8 views

Can't see or browse SMB file shares depending on two routers

I have two routers (huawei which is the main and linksys connected to it for extra coverage), I can't access my SMB share which is connected to the huawei through the linksys network. note I can ...
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36 views

How can I improve the performance of my computer?

I have had my computer for a long time now and even though I try to keep things clean, it seems relatively slow. Particularly, the windowing system seems to lag frequently. Windows fade in slowly ...
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1answer
22 views

Need a proxy server for only logging requests

I have looked at Squid and find it too heavy for the simple task that I have at hand. I just need a proxy to run on Ubuntu, preferably a transparent one, which will only log http requests and nothing ...
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1answer
37 views

Unable to start windows 10 technical preview

Few time ago, I have installed windows 10 technical preview and it worked perfectly for the first two weeks. After that, it began restarting every few hours saying that windows 10 has expired. I have ...
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1answer
6 views

Force remove package with dpkg despite errors

I think this is Ubuntu Vivid specific as none of the existing solutions helps: Can I get dpkg to ignore an error returned from a post-installation script? Unable to remove package on Debian 7 All ...
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19 views

Ubuntu Vivid, Missing vmlinuz from /boot

This might be an Ubuntu Vivid specific question as I haven't meet it before. In my new Ubuntu Vivid, the VmLinuz Boot Image /boot/vmlinuz* is not found and I can't generate it. Answer from ...
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5 views

Ubuntu 14.10 Shutting Down on Lockscreen When Idle

I have a clean install of Ubuntu 14.10 on an HP z440 workstation. I have the problem that when I lock the computer and leave for at least an hour the machine shuts off. I have to restart the ...
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8 views

VPN-Client on virtual interface

We have the following two interfaces (2nd is a virtual one) on a ubuntu machine: eth0 Link encap:Ethernet HWaddr abc inet addr:x.x.x.110 Bcast:x.x.x.127 Mask:255.255.255.224 eth0:1 ...
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Ubuntu Upgrade Fail, Can not install/remove/purge USB Device are not detected too

I recently Upgraded my Ubuntu 12.02 to 14.10 and now I can not remove or install or even any USB Devices are also not detected. I get following error on install/remove I tried adding new user and see, ...
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2answers
24 views

How to resize boot partition on ubuntu 14.10 using gparted

I have Ubuntu 14.10 installed on my pc of 500GB HDD. I created a seperate boot partition and now its running low on space while upgrading to 15.04. I even tried cleaning out spaces, still its not ...
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1answer
35 views

Time Machine on Ubuntu Server via SSH tunnel - backup fails

I have an afpd up on my Ubuntu server. Everythings works fine in LAN. If I want to make a backup for a user via ssh tunnelling it fails, although it works in lan. The tunnelling works fine. When the ...
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1answer
19 views

can't login laptop ubuntu 14.04 LTS

It happened a few times to me already. It is an Azerty keyboard, set on [french (legacy, alternative)]. I have letters + figures to type. If I use capslock for my numbers, it doesn't work, password ...
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gettext / poedit translations not working on local server

I've installed gettext and poedit on my Ubuntu 14.04 desktop, for local development. We use poedit for one site, and on the server it works. I can see translations changing there. On my desktop it ...
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1answer
19 views

MonoDevelop not running after installation of a newer version of mono

After installing a newer version of mono (4.0.1) on Ubuntu 14.04.2 LTS i am getting an exception on running MonoDevelop Unhandled Exception: System.TypeLoadException: A type load exception has ...
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26 views

Can't upgrade ubuntu from 14.10 to 15.04

I'm using only Ubuntu 14.10 on my PC having more than 400GB of free space out of 500GB of HDD. I received a notification to upgrade to my Ubuntu to 15.04. When I tried to upgrade, after some time it ...
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1answer
33 views

Installing Linux on a Windows Dell XPS 13

I can buy from a retailer with employee discount. This means that I can get a Dell XPS 13 with Windows for considerably less money than the Dell XPS 13 developer edition from Dell directly. I would ...
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13 views

Installing Ubuntu - Boot Manager Troubles

Specs - Acer Aspire - Intel Based System - UEFI Firmware I'm trying to install Linux Ubuntu alongside Windows 8.1. I had the issue of my Boot Manager not finding other bootable devices (my external ...
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1answer
12 views

Linux Installation - Boot Manager Not Finding CD/USB

I have an Acer Aspire laptop with an intel I5 processor. I'm trying to install ubuntu alongside Windows 8.1. My problem is my boot manager is NOT finding my external hard drive nor the dvd I made with ...
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1answer
27 views

Looking for shortcut key for Linux terminal

I opened a program via linux terminal, and after some search in Google I find out that I can close the program by Ctrl+C. If I what to run the program but at the same time have new line in the command ...
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1answer
29 views

The logic of Disabling Root Login

Ubuntu 14.04 VPS user here. My VPS was hacked twice. And the third version is up. Fingers crossed. The mistake I made in the first two was that I had root + password login enabled. I've learned ...
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1answer
29 views

Ubuntu Plesk SSH issues (permitRootLogin)

I got a new Ubuntu 14.04 server with unlimited Plesk delivered and working. If I try to migrate the old server through Plesk's Migration Manager it reports the following issues: rsync execution ...
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1answer
76 views

vsftpd: 500 OOPS: prctl PR_SET_SECCOMP failed

I have an issue with vsftpd. When I connect to my FTP server via FileZilla I get the error: 500 OOPS: prctl PR_SET_SECCOMP failed Error: Critical error Error: Could not connect to server ...
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1answer
21 views

Issues with Ubuntu Linux installation on a Windows 8.1 laptop

I’m trying to install Ubuntu Linux on my Windows 8.1 laptop. I’m being told I need to “Disable Secure Boot” within my UEFI firmware settings. But the only way my laptop will allow me to do so is to ...
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19 views

OwnCloud - storing data on RAID array

I have a server running Ubuntu Server 14.10 LTS 64bit. It has an O/S drive, and then a data RAID-1 array mounted under /srv/storage I've installed OwnCloud server using the default sqlite DB. I've ...
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OSX: Locking in vagrant with Ubuntu guest using NFS doesn't work

On OSX 10.10.3 using VirtualBox 4.3.26 and vagrant 1.7.2 when using NFS for the shared folder in a Ubuntu 14.04 LTS guest, PHP application ins the guest trying to use LOCK_EX on the shared folder ...
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14 views

How can I work out why my headless VirtualBox VM is not booting?

I have an Ubuntu Server, upon which I am trying to run a headless VM (Ubuntu Server as the guest OS) with Virtualbox. The machine apparently starts up but I cannot ssh into it (though it should be ...
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1answer
28 views

Unable to run Matlab on Ubuntu after fresh installation

specs: OS - Ubuntu 15.04 (64-bit) and Matlab - ver. R2013a (64-bit) I have successfully installed and activated Matlab. After trying to run it via terminal, it is showing error on the terminal. ...
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11 views

Newline command does not work in latex formula in Libre Office

I am using Libre Office Writer 4.2.8.2 in Ubuntu 14.04. When I select Insert->Object->Formula and write some formula like <some formula> newline <some formula> it renders as <some ...
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15 views

Mouse and Keyborad Input not working under Xubuntu VNC

Question I have x11vnc setup on a Xubuntu 14.04 machine, however when I connect to the local session, no keyboard or mouse access is accepted. I start x11vnc using: x11vnc -xkb -forever -shared ...
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2answers
17 views

No Bootable Medium For Ubuntu VirtualBox

Im trying to install the latest version of Ubuntu on my VirtualBox. Here is what I've done. Downloaded and converted the .7z file for Ubuntu and converted it to and ISO file Created the new virtual ...
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1answer
49 views

How To Build Ubuntu 14.1x KVM server with webmin and viertualmin properly

MOVED HERE from ServerFault... as the topic says I am planning to REBUILD my current file server into Ubuntu Virtualization and File Server machine. FYI: This is a home server not busines or ...
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1answer
18 views

Apache not working after an Ubuntu server upgrade from 10.04 to 12.04

I’ve just upgraded a server from Ubuntu 10.04 LTS to Ubuntu 12.04 LTS given the imminent end of support for 10.04. The upgrade went fine; I have already tested it all with a virtual machine ...
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23 views

Trigger lock/unlock XFCE session on udev event

I'm trying to write simple script that will unlock my XFCE session (xubuntu) when I will connect my phone via usb and vice-versa -> lock when phone will be disconnected. So far I managed to write new ...
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2 views

Configure inn2 to receive mail as newsgroup entry

I've installed the inn2 package on Ubuntu, which pulls in Postfix as a dependency. Emailing root@news.host successfully receives mail. I can also connect to the news server and post topics using a ...
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6 views

Can't install Ruby 2.2.0 with rbenv

I have installed rbenv and ruby-build however, I still can't install Ruby 2.2.0 using rbenv. user@admin:~/.rbenv/plugins/ruby-build$ rbenv install 2.2.0 Usage: ruby-build [-kvp] <definition> ...
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0answers
12 views

Not able to read 2 USB webcams at the same time in a Ubuntu VM in VMWare Fusion

I am trying to read 2 video streams from 2 USB webcams at the same time. This is needed for my project with OpenCV on Stereo Vision in Ubuntu. While I could read both the streams at the same time w/o ...
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23 views

What protocol do networked scanners use? Linux server emulation of same?

TLDR: What protocol do network scanners use, and how do I use that to set up a Linux scan server to OS X client? I have a Brother DCP-7065DN laser printer/scanner. It's great. It's connected to ...
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17 views

Ubuntu 14.04 and Nvidia 840M graphic card driver, prime or bumblebee ! what to choose?

I have gone through Ubuntu forum and it suggests me to update ppa of prime or bumblebee projects. I am unsure what to choose and go ahead. users has reported many complains over prime for black screen ...
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8 views

How to play specific parts in a playlist with VLC

I have 33 videos in a playlist and would like to play each of them from 3:00 to 40:00. Is that possible with VLC? Or is there any other player that can work in this way in Ubuntu?
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21 views

Raspberry Pi crashed - sdcard corrupt - how to recover data?

I have a Raspberry Pi 2B, with a 16GB micro SD Card. Last week it crashed and it turns out the sd card is corrupt. The system won't start anymore. It has two partitions. Boot is 64MB and the second ...
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12 views

Ubuntu Creating Files/Folders in Network Share Are Locked

I have two machines, both Ubuntu 14.04 LTS. One of them has a shared folder "/domains" (shared by right clicking and choosing "Local Network Share"), and the other Ubuntu machine has that folder ...
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19 views

Ubuntu Server 14.04 unresponsive / crashed after a while

I recently posted a question on ServerFault in hopes of getting some hints on where I might look to find the reason for my recent crashes. It was closed as off-topic (because I am an 'end-user' asking ...
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3answers
38 views

Why I can't access to this directory after that I use the chown command?

I am not so into Linux and I have the following problem. I have installed a LAMP environment of an Ubuntu Linux system dedicated to the develop (it is on my PC and it is not a production server). So ...