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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2
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0answers
348 views

Unmount external drive with LVM2 Physical Volume on it

I've got my Ubuntu 13.04 install backed up to my external hard drive using deja-dup. I formatted the drive with lvm so I could use the rest of the drive for external storage while having the resize ...
7
votes
2answers
130 views

What is the rationale behind using non-numeric package component for the version?

In ubuntu (and not only in ubuntu) default repository you could see a package version like 2.2.14-5ubuntu8.12. Why do the maintainers give such a weird version in the central package repository? ...
0
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1answer
1k views

How to set g++ 4.8 to be the default after installing? [closed]

After executing the following on Ubuntu 12.10 how do I set 4.8 to be the default C++ compiler? sudo add-apt-repository ppa:ubuntu-toolchain-r/test sudo apt-get update sudo apt-get install g++-4.8 ...
1
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0answers
85 views

Monodevelop D Bindings for Debian / Ubuntu?

I want to install the D-Language binding for MonoDevelop but it does require MonoDevelop 4.x, which isn't available yet for Linux based systems. Is there any way I can get around this? I tried ...
3
votes
2answers
1k views

Do I need a special firewall on a personal computer

I am relatively new to Linux and was wondering about security issues. Most people agree that a virus-scanner is not useful on a linux system, but what about a firewall? I am using Debian wheezy stable ...
0
votes
3answers
699 views

Why do two Ubuntu systems in the same network behave differently in DNS resolution?

I have two systems, both running Ubuntu 12.04, which are within the same network (connected by hubs without routing logic). Both systems are configured quite similar, but not identical. In particular, ...
1
vote
2answers
109 views

Odd behavior of software sources GUI in Ubuntu-based eOS (sources selected in the background)

Oddly enough, they all look unselected - I do not know that this is really true, but they look like they are not selected. But most odd is that selecting them is impossible - as seen HERE. For a ...
2
votes
1answer
42 views

Ubuntu blocks access to services when not logged in

I'm not really sure what's going on here. I have the following: A fresh install of Ubuntu 12.04 LTS. Jira 6.1.2 installed as per instructions from Atlassian. Confluence 3.5.13 installed as per ...
1
vote
2answers
65 views

Install Ubuntu from the same or different partition?

Do you need more than one partition to run an Ubuntu installer? Or can you download it, save it, and install it all in the same partition? (without mounting others, nor using the Windows installer). ...
1
vote
3answers
8k views

How to repair Ubuntu after upgrade? (from recovery mode)

I have gone through countless threads on the following error and none have helped. Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure ...
2
votes
2answers
126 views

How can I automate a task on a certain event?

Playonlinux and WINE are great. Finally I can have my favourite games and the joys of Linux without having dual-boot or filling my disk with Windows crap! But some are quite old, and only run on lower ...
2
votes
1answer
516 views

mdadm + lvm2: destroyed all superblocks accidentally

I accidentally overwrote all my RAID1 superblocks with garbage. I think this happened because I ALT-CTRL-DEL booted when the Ubuntu had put me in some kind of hard disk recovery mode. My display wasn'...
8
votes
2answers
805 views

Nautilus special URIs

Where are these special URIs used in Nautilus defined in Ubuntu? recent:/// trash:/// x-nautilus-desktop:/// computer:/// burn:/// These can instantly open special locations in Nautilus by typing ...
0
votes
1answer
73 views

Help With Visual Differences in Google Chrome

Okay, so I just moved over to Ubuntu yesterday. I'm loving it and am trying to get the hang of everything. Yesterday everything seemed to look fine in terms of Google Chrome, but today everything is ...
8
votes
4answers
32k views

Proper way of changing username in Ubuntu or any linux

I am using Ubuntu 12.04 and made some customization. I will also make it a new iso which is customized ubuntu. What I want to ask is how can I change my username. There are plenty much configuration ...
1
vote
1answer
462 views

network device name is changed by itself

I use a Ubuntu-arm, uname -a Linux arm 3.7.8-x8 #1 SMP Sat Feb 16 04:15:13 UTC 2013 armv7l armv7l armv7l GNU/Linux I have two USB WiFi interfaces that are named wlan0 and wlan1 on /etc/udev/rules.d/...
1
vote
1answer
519 views

mobile not being recognized by Ubuntu13.04

I connected my China mobile to laptop via cable. On the phone I selected the option mass storage. Then it messages on the phone as "done". But as I was expecting I would be able to see the contents of ...
2
votes
1answer
94 views

Using 'convert' with files that has space characters?

for f in $(ls mydir/*.jpg) do convert -thumbnail $size -quality $quality $f thumbsdir/$(basename $f) done I'm trying to code a script that takes a directory with images and generates thumbnails ...
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0answers
371 views

Local Server not accessible on Linux

My Internet company set up a local server, where different files are hosted. I can download files at much higher speed from there. But for some reason, the server is not accessible from Ubuntu 13.10 I ...
1
vote
2answers
205 views

Shall I upgrade my OS from Ubuntu13.04 to Ubuntu13.10? [closed]

I am working on Ubuntu13.04. Now Ubuntu13.10 is available. So, I wanted your advice on what added features and advantages I may expect from the latest version. I read this link to know about the ...
21
votes
2answers
3k views

Is there an online/web interface to search and list apt-get packages and see summaries and recommendations?

I'm looking for sort of an 'app-store' or Google Play store type functionality for apt-get packages. What I'd really like to do is select a category, like 'Music' or 'Internet' and see the list of ...
5
votes
2answers
616 views

Unable to login via ssh after several months [closed]

I have a Dell Poweredge running Ubuntu 13.04 in my office to serve up an interal web-app address system. It has been at least a 2 months possibly 3 since my last login. Everything is running great, ...
2
votes
1answer
586 views

Restrictions of /etc/profile in Gnome

I have an issue which bugs me for a long time. I'm using the Intel C++ compiler which includes shell scripts to set up environment variables for library paths, include paths and more. Sourcing these ...
0
votes
1answer
75 views

Service not starting at boot

Im on Ubuntu 12.10. I have a service that runs well when I do sudo service myservice start/stop at installation, I did sudo update-rc.d myservice defaults and I see that there are in rc*.d some ...
0
votes
2answers
1k views

Cannot apt-get - Package install issue

I was halfway through updating my machine when it crashed and I had to reboot. It was updating new packages while it crashed. When I try to use apt-get it always fails because of a mysql package. ...
1
vote
1answer
716 views

Can I safely delete the Ubuntu 12.04 partition and use the unallocated space for my Elementary OS?

I have this setup: I've decided to switch to Elementary OS Luna (fork of Ubuntu 12.04) as my main Linux distro. Now I need to delete my Ubuntu partition so I could add capacity to my eOS which only ...
1
vote
0answers
153 views

Can't reliably create a directory on startup after ec2 instance mounts its ephemeral drives

This particular instance type mounts two ephemeral drives, in /dev/ and /mnt/. I have to create working directories for one of my services in these paths at startup or the services won't launch. ...
4
votes
1answer
2k views

timidity: No instrument mapped to tone bank 0, no idea which one is missing

I am trying to play this midi file downloaded from here, but I get: $ timidity --verbose marivonnig1\ \(1\).mid Requested buffer size 32768, fragment size 8192 ALSA pcm 'default' set buffer size ...
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0answers
302 views

USB Mouse and Keyboard not working in Linux 4 Tegra

I'm new to Tegra Linux development. I have a Tamontem NG Evaluation board with the Tegra 3 Chip. I installed L4T sample file system from NVIDIA Tegra resources (https://developer.nvidia.com/linux-...
0
votes
1answer
564 views

Start up commads in Lubuntu 2 [duplicate]

After posting my question here, Start up commads in LUBUNTU I got no answer so here it is. I have these 2 commands: xinput --set-prop "Razer Razer DeathAdder" "Device Accel Constant Deceleration" 4 ...
1
vote
1answer
209 views

Disallow switching to other windows

I'm working on a python project where I'm displaying a graphical window with a login screen. I've disabled the close, re-size and minimize buttons. The OS is Ubuntu. I have to disable all the ...
2
votes
1answer
5k views

Ubuntu- How do I change clock speed from terminal? [duplicate]

The title of this question pretty much says it all. What command or program do I need to run in order to change the clock speed to a specific value I want? For example, I'm looking for something like &...
0
votes
0answers
51 views

Exporting Logical Volume to Mac for use as Time Machine drive

I have an Ubuntu server, and I have put a hard drive into this server. The logical volume on this hard drive looks like Device Boot Start End Blocks Id System /dev/sdb1 ...
0
votes
1answer
961 views

How do I add custom GPG key to Ubuntu/Debian installer?

I'm trying to setup custom Ubuntu install CD using instructions on http://beezari.livejournal.com/191717.html I've added my GPG key to ubuntu-keyring and signed Release file with it (resulting in ...
4
votes
2answers
9k views

Invalid signatures when running apt-get update

I'm new to linux and am trying to run an update, I get a lot of "Hit"'s and "Ign"'s but in the end I get these errors, does anybody know what they mean and how I can fix them? W: GPG error: http://...
1
vote
0answers
766 views

Problem while install ubuntu 12.04.3-server

I try to install Ubuntu 12.04.3-server-i386 in my system. My system configuration is 256MB RAM, 80GB hard disk, Pentium 4 (2.40Gz). I have a DVD drive, I downloaded 12.04.3-server-i386.iso and burnt ...
0
votes
3answers
98 views

How to get data shown out of workspace or directly from application?

Because of some reason I had to use another web browser than my main which I use daily and I chose a small browser which I installed long time ago. This brower is called Dooble, version 0.07 (dooble-0....
3
votes
2answers
1k views

shutdown ubuntu server after 2 days at midnight

without using a cronjob how would I have a ubuntu server shutdown after 2 days (2880 minutes) at midnight? The essence of what I want to do is this: bash shutdown -r +2880 00:00 which would tell ...
3
votes
3answers
17k views

How can I get Apache working (complains about logfiles) on Ubuntu after a distribution upgrade?

I upgraded from Raring to Saucy, and it says it can't open listening sockets: root@ip-10-250-42-219:/etc/apache2/sites-enabled# apache2ctl restart [Tue Oct 22 13:34:05.187996 2013] [core:warn] [pid ...
1
vote
3answers
1k views

Ubunutu software-centre is not working, showing black screen

I am trying to open ubuntu software-center but it get paused and after that shows complete black and nothing is happening. Same thing has happened when I try to run from command line. This is the ...
1
vote
2answers
854 views

Ubuntu with Gnome and Openbox

I've in my laptop Ubuntu 12.04.03 which comes by default with Unity. I like Unity, and Gnome. It has a nice look, some nice apps, things frequently works nice. However I would prefer to use Openbox. ...
3
votes
0answers
3k views

badblocks and “end_request: I/O error” in output

I have 500GB disk in my toshiba laptop, I tried to do backup of files in this HDD but it failed few times (ubuntu just closed copying operation or unmounted disk during copying files). So I boot my ...
3
votes
1answer
247 views

Why do I need to add a GPG-key with apt-key before adding URL to sources.list and download-installing an application with apt-get?

I went on to download an application today. It had it's instructions listed, step by step, number one being: adding a GPG-key with apt-key. It was followed by adding the application to apt/sources and ...
1
vote
3answers
3k views

apache not starting in vagrant vm

I used Puphpet.com to create a Vagrant VM to be used for web development. The problem I am having is that the VM cannot start apache on boot. $ sudo /etc/init.d/apache2 start * Starting web server ...
1
vote
1answer
158 views

Entered wrong installation path in Ubuntu

I was trying to install Huwaie 3G modem on Ubuntu. The install.txt said: Run ./install in TERMINAL to install MobilePartner eg: # bash //install If you had installed this software in your ...
3
votes
1answer
2k views

Passing in parameters to Upstart

I can do mongod -f /etc/mongodb.conf How do I achieve the same effect when starting mongodb as a service? ie sudo service start mongodb By default this does not read from the config file. I ...
2
votes
3answers
1k views

Removing Ubuntu 12.04 LTS from a dual boot setup and recovering the Windows boot manager

I have Ubuntu 12.04 LTS and Windows 7 Home Premium on my laptop. My desire is to uninstall Ubuntu without spoiling MBR and Windows 7. I would like to emphasize that Ubuntu was installed later so I ...
0
votes
1answer
326 views

For downloading, youtube file format changes depending on OS?

Oh! its sad to see what I saw. I am downloading a file from youtube (the video is of 1 hr) using command line from Ubuntu13.04 as below: ravbholua@ravbholua-Aspire-5315:~$ youtube-dl "http://www....
1
vote
1answer
676 views

Ubuntu: /proc/pid/comm file missing

On my development box, under /proc/[pid]/ there is a file called comm containing the name of the executable for that process. I use this to validate the process to which I am sending a signal. On our ...
3
votes
3answers
7k views

Need small distro without a desktop or windows manager, just to run a single graphical app [duplicate]

I am looking for some help on this from a linux expert. I am very novice when it comes to linux so I am hoping someone can help out. I need a small distro, that is stable. I don't need a full X ...