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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“Enabling additional executable binary formats” fails

On ubuntu 14.04, after doing do-release-upgrade -d several systems failed like dbus, network-manager, sound card etc.. I am logged into terminal instead of X. Looking at the /var/log/boot.log I ...
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1answer
710 views

ssh ubuntu to android : No route to host

I am trying to log into my android phone (running sshdroid), using my laptop (ubuntu 12.04). I am on a university sub-network (on wifi), and so is my phone. I tried the following command: ssh ...
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0answers
71 views

Use FindBugs in Eclipse from terminal on Ubuntu

Is there any way I could use Findbugs from terminal to get all the bugs in my Java code and print it out to a text file? I want to write a script that goes through 100 java files ( this is already ...
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1answer
236 views

Ubuntu home folder issue

I am quite a newbie to Ubuntu and Linux world. I dual booted windows 8.1 and Ubuntu 14.04. I followed a tutorial and mounted a 38GB partition at /home. Now that my /home folder is almost full (2MB ...
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1answer
967 views

Prevent USB storage from using different device on reset

I have a hard drive in a USB enclosure that I am doing some data recovery on. The drive is in extremely bad shape and frequently resets on reads. The device registers as /dev/sdb. Sometimes, probably ...
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3answers
2k views

How come I installed Ubuntu 64 bit on a Pentium 4 machine?

I have just tried booting the Ubuntu 10.10 64 bit live USB on this machine and to my amazement everything works fine. I even installed the system, after which I checked with uname -a and the result is ...
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1answer
244 views

Trouble installing or booting into Ubuntu or Fedora using a live USB or DVD on a new Lenovo E31

I've tried a live USB with Ubuntu 12.04.1 (both i386 and AMD 64-bit) as well as 11.10, as well as Ubuntu 10.04 on a DVD and Fedora 17 on a live USB. In all cases, selecting the option to boot into ...
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1answer
3k views

How to register Nginx as a service, after installing Passenger?

I need passenger/nginx to run many sites on port 80. I have installed it with its own installer (per the instructions on the nginx website. But nginx is not registered as a service. I can only run it ...
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1answer
495 views

upstart writing to syslog in a simple way

I have an upstart script that uses pre-start script exec >/dev/kmsg 2>&1 echo starting program # run my program here npm install node app.js end script to redirect output of a ...
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1answer
1k views

Why beep does not work in Ubuntu?

I've tried the below shell, but nothing happened. #! /bin/sh beep -f 500 -l 700 beep -f 480 -l 400 beep -f 470 -l 250 beep -f 530 -l 300 -D 100 beep -f 500 -l 300 -D 100 beep -f 500 -l 300 ...
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0answers
4k views

Ubuntu 14.04 mouse pointer does not move

I'm using Ubuntu 14.04, after updating the Unity doesn't load. The sidebar and topbar disappear. On the main screen, there are only the background and the pointer. I've solved this problem by entering ...
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1answer
230 views

Custom command wget without response

I have an arduino with an ethernet shield that is controlling a relay, which control the lights. I usually just use the phone to send a http get request from a widget in tasker, but I would like to be ...
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1answer
3k views

How to upgrade OpenSSL to 1.0.1h

I'm currently running Ubuntu 13.10 and my OpenSSL version is 1.0.1e. As per latest security warning, I'd like to upgrade it to 1.0.1h. I've tried apt-get upgrade openssl (don't want to upgrade ...
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0answers
111 views

Problem in writing message from one terminal to another terminal

I have a user of name x in tty1 and y in tty2. x wants to write some message to y and vice-versa. When I typed write y tty2 in the tty1 terminal, it said: write:you have write permission turned off ...
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0answers
134 views

Linux makes my audio speaker make a “poping sound” back to Windows in dualboot

I have a very strange problem that other people with the same hardware than me already had, but I didn't see any solutions on the internet. That's why I'm posting here, I'm a bit desperate and if I ...
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0answers
369 views

SOLVED: KVM Can't Read Keymap File on Ubuntu 14.04

When I try to create a KVM domain with virt-install on Ubuntu 14.04, I get the following message: ERROR internal error: process exited while connecting to monitor: Could not read keymap file: ...
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2answers
681 views

inotifywait different action on file or dir

I'm trying to make a inotifywait script take different actions for files vs folders if it sees a close_write flag being raised in the watched directory, but cannot seem to get the checks working. In ...
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1answer
678 views

Ignore DNS from DHCP server in Ubuntu

I set static DNS in /etc/resolvconf/resolv.conf.d/base file: nameserver 8.8.8.8 nameserver 8.8.4.4 But my PC still obtains DNS from DHCP, this is my /etc/resolv.conf: nameserver 192.168.100.2 ...
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0answers
101 views

How to inactive Wire Lan Connection when have not physical connection

I use Ubuntu 14.04 LTS. When I work at Company, I usually use Wire Lan Connection and set static IP. But, but when at Home, I usually use Wireless Lan Connection and IP information is provided by ...
2
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1answer
229 views

Reinstalling Ubuntu: Shall I back-up dot files from my home directory?

I'm removing my Ubuntu 13.04 as I'm reinstalling latest version. So, I have taken back up of my home partition using tar. The back-up includes hidden files (dot files) like below: $ tar -tvf ...
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1answer
73 views

DHCP Problems Virtualbox

I have some minor issues with Ubuntu server on a virtual machine and even though I have some assumptions as to what actually happens, I'd like to ask all of you about your opinion. Here's the deal: I ...
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1answer
798 views

Ubuntu 13.04 seems to randomly crash

I'm using an x64 distro of Ubuntu 13.04 on a Dell inspiron 1464, but it keeps crashing for no apparent reason. Took some pictures of the error screen (first picture is of one instance, the rest are ...
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0answers
702 views

Linux - Only first virtual interface can ping external gateway

I created 3 virtual interfaces with different MAC addresses all linked to the same physical interface. I see that they can successfully arp for the gateway (gw) and they can ping (the request is ...
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0answers
4k views

Running F.lux (Flux) or Redshift with Multiple Monitors with Nvidia Optimus

I have tried installing F.lux and then Redshift, and configured them to run on multiple monitors with no success. I wonder if my setup, which includes Nvidia Optimus setup using Bumblebee could be the ...
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0answers
134 views

CPU frequency goes back after scaling down by indicator-cpufreq, suspension and waking up

I scale down the CPU frequency by indicator-cpufreq on Ubuntu 12.04. After I suspend Ubuntu and wake it up, the CPU goes back to"on demand" (the default). I wonder if there is a way to keep the CPU ...
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1answer
2k views

kill pid is not working? [duplicate]

This is pretty weird now. I am trying to kill a process by using its pid but it is not working at all. root@machineA:/home/david# ps aux | grep modelling david 5075 0.0 0.0 1285420 29404 ? ...
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0answers
18 views

Failed packages list

I am planning to write a script to get the list of upgrades available on Ubuntu server and upgrade them. I can get the list of upgrades with "apt-get -s upgrade". But how to get a report on list of ...
2
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1answer
125 views

why 2TB external HDD is recognized as 800 GB only in Ubuntu 8.10

I had a 2 TB external HDD which I formatted as below. fdisk /dev/sdb After issuing the above command, I did the following steps. Then selected option p. (To print the partition table). Then ...
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0answers
1k views

Cannot Start KVM VM Because Missing BIOS

Whenever I attempt to start a KVM VM on Ubuntu 14.04 with the "kvm" command, I get the following error: qemu: could not load PC BIOS 'bios-256k.bin' I have searched for this file and found it ...
13
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7answers
12k views

Linux equivalent for Windows Startup

Is there any way to add an application/script to the Linux startup so every time the system is on it executes [i'm looking for some automated way, user should not add this by cron job or something ...
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1answer
86 views

Enabling a Display Manager in Ubuntu 13.10

I was wondering if anyone knew how to enable/set-up a display manager which prompts for username and password when the screen boots. Whenever I start Ubuntu, it goes to the desktop and then a small ...
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1answer
1k views

Failed to bind to '127.0.0.1:6600': Address already in use

I'm using ubuntu 12.10 for my MPI(message passing interface) configuration I have installed mpd after installation I have start mpd, it is started normally no error message display but when I'm trying ...
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2answers
26 views

Can the --prefix path be the same as the directory where I downloaded/unzipped the source?

I was trying to build R myself and put it in a temp_R folder because I wrote .configure --prefix=/dir/where/I/wanted/to/put/R, but it seems that some of the important stuff was put in the temp_R ...
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0answers
670 views

Full disk encryption with dm-crypt (without LUKS)

I am currently trying to achieve full disk encryption using dm-crypt in plain mode without LUKS header with a separate /boot on USB stick. My main goal is to achive plausible deniability on a ...
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0answers
119 views

Ubuntu 12.04 apache2 site shows index of instead of actual site on redmine

I have an Ubuntu 12.04 server that has a successful redmine install on it. I have been using redmine on it for a while, but when I tried to set up the SSL cert using this method, ...
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0answers
460 views

What is SUnreclaim memory?

In /proc/meminfo we find among others: Slab: 276188 kB SReclaimable: 244112 kB SUnreclaim: 32076 kB From what I could find out all three numbers refer to slab memory. But ...
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1answer
30 views

Table align in two column page style in IEEEtran latex

I am writing a paper using the IEEEtran class. I need to insert a 3 tables in the top of the 3rd page in the two column page style. my table having 15 columns and 4 rows..... can anybody tell how to ...
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1answer
423 views

Runs monit as non-root user

I'm using Monit to monitor my nodejs process. Right now monit itself runs as the root user which may lead to security holes. How could I run monit via the 'monit' user? I installed monit by using ...
5
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1answer
646 views

Download package via apt for another architecture

I am currently in a architecture amd64, so when I try apt-get download vlc, it downloaded the appropriate architecture for my system, but how can I download the i386 version via apt? It's for ...
2
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1answer
64 views

how to know the use of my applications?

I want to know how long my programs have been used. For example if I use my web browser I want to know the start and the close time to obtain a total of use time. Basically I want to know when an ...
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1answer
1k views

index.html is not working in apache document root

I have got Ubuntu 12.04. I have a file index.html in apache'd document root but apache lists all the files when I access the document root from the browser. It works fine if I replace index.html by ...
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2answers
1k views

it takes too long to connect to ssh server

I've got two VMs with arch linux and debian (running under virtual box). Not long ago, it started to take a lot of time connecting to arch VM over ssh. The first time after a while, successive ...
0
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1answer
367 views

how to run a script on ubuntu shutdown when it needs network on

I have an upstart script that needs to run on reboot or shutdown, but it needs to access the network to post an http requests and wait for the replies, I tried start on starting rc and start on ...
3
votes
3answers
616 views

Upstart: How to run a “stop” before stopping other services?

I recently found out about the upstart "service starter" that Ubuntu is using and that is (apparently) the future to start/stop jobs in Linux. It's pretty new to me (I was used to the old SysV system ...
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0answers
1k views

Installing Dummynet on Linux Ubuntu

I'm new to Ubuntu and I'm trying to install dummynet. I cannot however find a tutorial for Ubuntu. I've tried to follow this tutorial http://goo.gl/ZzKrpk however I get an error when making a kernel ...
2
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1answer
222 views

How do I set cron to run on background?

I am on ubuntu 12.04 and following this tutorial. I want to setup cron to run in the background but I don't have a chckconfig in sbin so I can't run sudo /sbin/chkconfig crond on I am fairly new to ...
3
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1answer
124 views

Reading Ubuntu installed magazines

I installed a digital edition of a magazine from the Ubuntu Software Center. But how do I read it? Is there an accessory tool to access it?
2
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1answer
102 views

kernel event listener

I wonder if there is something similar to an event listener in UNIX that a program can subscribe to? Specifically I want to know: Start and end times of a user session Start and end of the ...
2
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1answer
102 views

Remove an IPTable Rule

I'm having troubles removing this ipables rule in Ubuntu: $ iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3128 I've tried using the -D attribute but with no success. How can ...
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2answers
11k views

Can not execute restart networking service on Ubuntu 14.04 [closed]

I use Ubuntu 14.04 LTS, I try type sudo /etc.init.d/networking restart but no output's displayed and no action excuted.