Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Unmet dependencies when trying to build chromium browser on Ubuntu 14.04

I am trying to install the necesarry dependencies for building Chromium on Ubuntu 14.04, and I am facing the following message: The following packages have unmet dependencies: g++-4.8-multilib : ...
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1answer
33 views

Not able to reinstall the kernel or to use the latest version

On a ubuntu server, I try to di "sudo modprob" and I have this error : $ sudo depmod [sudo] password for deployer: depmod: ERROR: could not open directory /lib/modules/3.8.0-38-generic: No such file ...
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2answers
42 views

how to check a kernel version which was used when building package

I use apt when downloading packages from Ubuntu repositories. How can I check which kernel version was used when building package? When it is important (kernel version of the build server vs. kernel ...
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0answers
31 views

Can you install & boot linux from a specified folder?

The Situation: I have access to a computer in the university, but no root rights. I already installed Ubuntu on a USB Drive and I could boot and run Ubuntu, but the computer has only USB 2.0 and I'm ...
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1answer
36 views

Is it possible to reclaim files after incorrect unmount?

When I first began using Linux (~10 yrs ago) I used a USB univ. drive adapter to mount an external hard drive. Unfortunately, I was not aware of the unmounting procedure so, when finished, I just ...
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0answers
24 views

Latest version of Ubuntu Won't login to GUI

I'm assuming this is an issue with UNITY because I can log in just fine at the command line. When I boot up my most recent kernel, I enter valid credentials but It just keeps kicking me back to the ...
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0answers
23 views

Themes app not showing preview for installed GTK themes (Window borders and Controls) in Cinnamon

I have installed Cinnamon in Ubuntu using a ppa. The problem I have is that newly installed GTK themes won't show previews in Themes application. Here are the screenshots. .As you can see the Window ...
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0answers
36 views

Upstart job does not trigger (Xubuntu 14.04)

I'm in the process of learning how to use Upstart. I wrote a simple job as a test (file is /etc/init/uptest.conf), using a custom event to trigger it manually: start on uptest task exec touch ...
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1answer
24 views

How can I “reset” aptitude?

I've inherited an Ubuntu 12.04 server where package management is completely messed up. Any aptitude command fails with errors like this one (for every installed package, as far as I can tell): dpkg: ...
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1answer
26 views

Auto reconnect to wifi once disconnected?

On Ubuntu 14.04, I am using a usb wireless adapter to connect to a wireless network. The connection is often disconnected (I have tried to solve the problem, but I don't know why. That is another ...
4
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1answer
53 views

Circular dependency in Ubuntu Release upgrade

The title is the best way I could describe this error. Basically the packages kbd, console-setup, console-setup-linux, and keyboard-configuration all depend on each other. So I cannot remove, ...
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1answer
22 views

virtualbox on os x lags when not active

I am running ubuntu server as guest inside virtualbox on os x 10.10.x host While the system works, it lags whenever the virtualbox window is not the active app. E.g. I log into ubuntu from terminal ...
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0answers
40 views

How to disabled nvidia graphics card and start using intel hd 4600

I use UBuntu 14.04 LTS. I have cpu i4790k with hdgraphics 4600. How to disable my nvidia graphics card and start using intel hd 4600 ? Should I change something in bios or it is possible from the ...
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1answer
15 views

How to solve nsf-common related error when install zsh in ubuntu?

Everytime I install some kind of package, at the last phase, apt-get install could return a common-nfs related error. Why the installation can't be done without this error? detailed pastebin here ...
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0answers
28 views

Why does newer version of Ubuntu and Linux Mint hang after install and which is the best alternative?

I am trying to install either Ubuntu (Ubuntu 14.04.2 LTS) or Linux Mint (Linux Mint 17.1 Rebecca) in my Desktop. I downloaded installer images multiple times and tried to install in my system. Every ...
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2answers
44 views

mysterious program crash: where to look for clues?

On Ubuntu 14.04, I often experience the following: open an application, and within 15 seconds or so the application window simply disappears from screen. If I ps aux | grep nameOfApplication it will ...
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2answers
42 views

Duplicate sources in Ubuntu 14.10's APT files, are they OK?

So I was preparing to upgrade to ubuntu 15.04 and I was going through and cleaning things up and this is one of things that stood out to me. W: Duplicate sources.list entry ...
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1answer
79 views

Linux - rendering performance after switching from nvidia to nouveau drivers

I use UBuntu 14.04 LTS. I have purged all nvidia proprietary drivers and currently my system use Nouveau driver. Here is an output from glxinfo | grep OpenGL : when using nvidia propietary drivers ...
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1answer
30 views

How to associate physical usb port with usb device number

I'm using Ubuntu 12.04. I need to send a command to a device that I have connected on a port of my PC. I can send the command by finding out what the Bus and Device number are. For example, lsusb ...
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0answers
7 views

auto boot a java app fullscreen on lxle

I just downloaded a base version of LXLE. How can I configure the system whereby on startup, it'll launch a java app full screen (covering everything possible). The only way to navigate out of it is ...
3
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2answers
150 views

Can't boot, task btrfs-transacti blocked for more than 120 seconds, how to fix this?

My computer was set up to boot Ubuntu 15.04 via UEFI. I have two disks. My first disk /dev/sda is a 128 GB ssd formatted as GPT, containing an EFI partition and a btrfs partiton with subvolume @ ...
1
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1answer
25 views

Simple Radius authentication

I'm looking into using Radius as an authentication server for a few Ubuntu servers when accessing through SSH. I have tried using libpam-radius-auth but it doesn't work quite as I need. My goal is to ...
4
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4answers
339 views

Is /etc/rc.local a good place to run a script before any (normal) user can log in?

I have a Ubuntu 14.04 Server which, during boot, should sync some stuff over the network before any normal user can log in (over ssh). I was wondering whether calling the script from /etc/rc.local is ...
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0answers
10 views

How do I write commands to a ttyACM0 device and obtain the resultant information data using C/C++ [migrated]

I am currently stuck with a task of retrieving data from a decoder that monitors 6 joint positions of a robot arm. This device has a USB interface that runs as a serial CDC device. An ASCII command ...
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1answer
33 views

Pass SNMP trap packet to a php daemon on Ubuntu

I have a Ubuntu server which is collecting incoming SNMP traps. Currently these traps are handled and logged using a PHP script. file /etc/snmp/snmptrapd.conf traphandle default ...
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0answers
69 views

UBuntu 14.04 LTS - switching between nvidia proprietary driver and nouveau driver

I use Nvidia proprietary drivers but I also have installed nouveau driver. How to switch to nouveau driver and then back to nvidia driver without uninstallling drivers ? Reboot is acceptable. By ...
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1answer
23 views

How do we remove installed packages in damnsmalllinux distribution(debian)?

I'm currently running damnsmalllinux distribution and I want to remove certain packages from the desktop like the beaver but I can't locate package to in /etc/init.d/ to remove How do I remove the ...
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0answers
26 views

Oracle VirtualBox Virtual machine automatically goes pause state

Virtual machine goes Pause state Automatically. And Error message shows in one box " An error has occurred during virtual machine execution! The error details are shown below. You may try to ...
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1answer
47 views

Unarchiving a downloaded tarball with Ansible

I'm trying to get WordPress downloaded and installed via Ansible and I can't seem to figure out what I'm doing wrong here. First I download via the get_url module then I attempt to use the unarchive ...
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0answers
20 views

Custom Copy Function?

I want to be able to select text in a browser, file, etc, use a shortcut and send that text to a file. The idea is, select an YouTube URL, hit CTRL + [button], the URL gets saved in a file and then I ...
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0answers
32 views

multicast routing (forwarding) using mrouted from OpenVPN tap interface to LAN

Brief network diagram: Host "S" < Tap OpenVPN > Host "C0" < eth0 > Physical Switch < eth0 > Host "C1" According to mrouted document, it doesn't need to config anything for receiving ...
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0answers
28 views

Graphic glitches: Linux vs. Hardware, who is guilty?

I am having serious graphics glitches on my Ubuntu 14.04 LTS install on my new Thinkpad X201 i5 540, 2x2GB RAM. I tested the Memory Changed the kernel (3.14, 3.19) Did a BIOS update The glitches ...
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0answers
14 views

“VPN connection failed” when ufw is on even if there are no rules in ufw interface

Ubuntu 14.04 After update related with ufw and switching nvidia drivers back and forth, suddenly, I can't establish VPN connection to internet. I've deleted all rules and reseted profile in ufw ui but ...
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0answers
33 views

ubuntu lts and cgroup support in iptables

I don't understand why Ubuntu community built iptables without cgroup support and what I don't understand if community didn't make it? Maybe Ubuntu use another some way (iptables without cgroup etc)? ...
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0answers
46 views

A mini iso for a (Ubuntu LINUX) install w/ wifi support - A base system CLI - ONLY

Just as it says in the title I need a mini iso that i can put on a USB or CD (both) that will let me install a CLI with the regular needed packages that that system needs and nothing else plus the ...
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1answer
33 views

Why my terminal screen crashes?

Sometimes my system gets freezed, after that my icons looks crashed and the terminal fonts are also crashed Whenever I restart it looks normal, how to fix this?
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2answers
52 views

Why will a linux usb boot on my personal pc but not on school computers?

I'm enrolled in a linux class right now and one of our assignments was to make a bootable flash drive. My friend is also in this class but he didnt know how to do it so I just made one for him. It was ...
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0answers
32 views

can I boot ext4 usb stick with xubuntu on from a Mac laptop?

is there a way to boot my ext4 formatted "xubuntu" USB memory stick from a Mac laptop? The laptop can identify FAT32 usb memory sticks with ubuntu at boot time, but it cannot identify mine, which is ...
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0answers
38 views

Did Ubuntu fix the Docker Security Flaw? [migrated]

I read an article that said that Docker was insecure, and that this is why Core OS was created. Then a short time later, I read an article that Mark Shuttleworth of Canonical / Ubuntu fame was ...
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0answers
77 views

Starting Wait for Plymouth Boot Screen to Quit

I'm struggling to install Kubuntu 15.04 on my PC. I've got a GTX 970 which i think is throwing off the trial mode from starting up. nomodeset doesn't work, so I tried nouveau.noaccel=1 to beget this ...
0
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1answer
9 views

How to use Mac Camera on Ubuntu Desktop

I am trying to feed my mac's camera into my ubuntu desktop. Any advice on either how to do this or the proper forum/resource to use to find out?
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0answers
29 views

Using Ubuntu as a SOCKS Proxy for Torrents - How to allow UDP for trackers?

This is my build: 14.04 LTS (GNU/Linux 2.6.32-042stab094.7 x86_64). I'm a complete noob at linux but have some experience in bind and ISC DCHP on some old solaris boxes (to define the audience!). I ...
0
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1answer
34 views

Ubuntu K/FreeBSD

I was wondering if it is possible to alter Debian K/FreeBSD so it becomes Ubuntu? I know there are builds of Debian 7 running on FreeBSD, so would it be possible to get a working Ubuntu system with ...
0
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2answers
41 views

Find command returning wrong data [duplicate]

I am using this command to list all files that have been modified in the last day (or created) find ./ -mtime 1 -ls However it keeps returning files from 30th April when I am running the command ...
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0answers
13 views

Backing up/restoring a full VPS, can't boot from live media

(My question here is specifically about Ubuntu, but I'm posting it on Unix & Linux because I think the answer will apply to Linux in general. I'm more than happy to reformat the question or move ...
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1answer
93 views

macbuntu - is it a linux distro or a desktop or a theme? [closed]

These might be very basic newbie questions (and if it is too basic, I would be happy to remove this post). After 25+ years of using various versions of Windows, to experiment with non-Windows OS, I ...
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0answers
34 views

Backing up VPS via SSH/SFTP

I'm going to perform some maintenance on my VPS (Ubuntu Server 15.04), and I would like to back up some files before doing so. The problem is that some of these files are under other users' home ...
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0answers
30 views

How do I setup a secure HTTP/SOCKS “proxy” tunnel through a Ubuntu server?

Is there any helpful tool that will allow me to turn a existing Ubuntu machine/server into a full featured SOCKS/HTTP proxy server which I can offer to customers? Meaning that I should be able to ...
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0answers
22 views

Permission of any file folder set to read only on upload

I have inherited an old CMS system that I have just cleansed from a massive hack attack. I copied all the files and databases, scrapped the old server, cleansed the files via various means, cleansed ...
0
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0answers
38 views

Debian setup launching GRUB bash

I have a little problem with setting up Debian. When I boot from the installation USB in UEFI mode, I get the GRUB command line. If I type in "boot", I get Please load the kernel first. I had Ubuntu ...