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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0
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3answers
418 views

Directory appears as file?

So we copied some photos in a directory across to a NTFS partition last night, and they were viewable from ubuntu. Today the directory is not accessible from Windows, and when we booted back into ...
3
votes
1answer
2k views

Sound volume control does not work in Ubuntu

My sound volume control does not work when I'm logged in with my regular user, though the sound works correctly. What's weirder is that the sound control works when I'm logged in as guest. With my ...
0
votes
0answers
7 views

Unable to type input to serial command interface

I am trying to communicate with a device with a serial command interface. dmesg shows that: [ 2465.467579] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB0 ls -pla /dev/ttyUSB* ...
0
votes
1answer
915 views

Consistent network interface name ubuntu using pci slot

One can set consistent interface naming via mac address by modifying /etc/udev/rules.d/70-persistent-net.rules. Can you establish consistent interface naming by PCI slot number? (I tried but failed) ...
1
vote
1answer
25 views

Running ubuntu binary on CentOS with all shared libs installed results in ld SIGSEGV

I'm trying to get a binary compiled on Ubuntu to run on CentOS 7 (both 64bit, one host, the other vm). So far I've copied the binary with all the shared libs. I no longer get the missing library ...
2
votes
0answers
10 views

odroid/ubuntu - getting wlan to start

Im working with an 'odroid' fanless PC. The latest OS attempt on it is the stock Ubuntu 14.04 that comes with it. Have made some progress getting the networking (eth0) started but am having issues ...
3
votes
1answer
33 views

losetup /dev/loop0 disappears after some time

at the moment I do some tests with loop devices on Linux/Ubuntu. In a small test script I have the following commands: #!/bin/sh rm testfile.x dd if=/dev/zero of=testfile.x bs=1M count=1200 losetup ...
1
vote
0answers
51 views

Command to get System Serial Number in Linux Machines

How Can I get System Serial Numbers in Linux Machines ? i prefer to get this through a non root account and dont want to use external commands such as dmidecode or lhal
0
votes
1answer
26 views

Ubuntu remote desktop user using a key-based login

I have an Ubuntu 14.04 LTS set up and I have a which authenticates using a private key to connect via PuTTY. Is it possible to use remote desktop from windows 7 (xrdp) with key-based login?
3
votes
2answers
9k views

eth0 not being configured automatically

When I start an ubuntu 12.10 instance, eth0 is NOT getting configured. davidparks21@MySqlDB:~$ cat /run/network/ifstate lo=lo When I manually edit ifstate and add eth0=eth0 and service restart ...
2
votes
1answer
30 views

How will apt-get handle my manual installed software?

Suppose the Emacs version in the APT repository is 24.3, I configure && make install my own emacs 24.4. After a long time, the software in the APT repository was updated to 24.5. What would ...
0
votes
1answer
51 views

How do I know if I'm in a jail, container, snapshot, etc. environment? [duplicate]

I received a machine (Ubuntu 12.04 server) from a coworker when he left the company. I created my own user as sudo/admin and used the machine for months. After rebooting for the first time since I was ...
-3
votes
0answers
25 views

where could i find a quick explanation to network bridging? [on hold]

I would like to use haproxy as a load balancer for 2 backend servers. To keep the source ip addresses i have to use it with tproxy which means i have to make the haproxy load balancer into a ...
3
votes
3answers
2k views

Mount NTFS Partition on Startup in Ubuntu

I have a 10 gigabyte partition which I use for files which I share between my Windows installation and my Oneiric Ocelet (Ubuntu) installation. My Eclipse workspaces exist on this partition. Eclipse ...
2
votes
2answers
591 views

root partition getting full with nfs mounted directory

I am having one nfs volume, which is mounted on one of the directory of root partition. My problem is when I checked df -ha it adds up mounted directory file content as well. Following are my ...
0
votes
1answer
603 views

Upgraded to Ubuntu 14.04 - Mail server missing dovecot-lmtp even though it is installed

So I upgraded to Ubuntu 14.04.1 from 12.04 the other day. Easy upgrade process. Everything worked fine except for my mail server stopped receiving mail. The logs show the mail arrives and is ...
0
votes
2answers
822 views

Linux Ubuntu / Mint Live CD user-home customization

I'm trying to customize Linux Mint Live CD with these instruction (uck doesn't work for me). What I want is to have more icons at its Live CD user (/home/mint/Desktop) but I can't find /home/mint on ...
2
votes
3answers
19k views

Create file in folder: permission denied

I'm a newbie in the GNU/Linux-Ubuntu world. I have a problem copying files to a directory on Ubuntu 12.04. I create a directory in the home directory so that the path where I want to copy to is: ...
2
votes
0answers
5 views

Why libpam-systemd run interactively on apt upgrade, even when specified force-confdef/force-confold

I upgrade my packages using aptitude, specifying the apt options --force-confdef and --force-confold. This generally works, but the package libpam-systemd (204-5ubuntu20.8, on Ubuntu 14.04) still ...
0
votes
1answer
485 views

Starting Resque worker with script doesnt work, starting by hand does

I am trying to figure out why my process doesn't work if started via a script, but works fine if started by hand. Here's the details: script is a resque worker start script. The script location is ...
1
vote
1answer
35 views

Ubuntu runuser command?

I am creating a bash script that requires to run commands as a specific user. As a result I am using the command: runuser I have tested this script and it works perfectly in Ubuntu Server 14.10. ...
3
votes
2answers
3k views

How to show the tree view in left pane of Nautilus?

My question is similar to this one, however the answers provided are not sufficient. I'm a linux occasional user / learner, not having much background to understand what to do reading between the ...
0
votes
1answer
497 views

Playing or converting .dv4 files in Linux

I need to find a way to playback a number of .dv4 files on Ubuntu 12.04 and Fedora 20, possibly after having converted them to a more conventional format. So far I have managed to convert the files ...
0
votes
1answer
968 views

Low display resolution Ubuntu Gnome remix 12.10

I'm running Ubuntu Gnome remix 12.10 and it can't recognize my display. My HW is: Intel i3 3225 with HD 4000 onboard / is on a OCZ Vertex 4 SSD display is an old IBM Thinkvision with vga connector ...
3
votes
2answers
425 views

Mounting USB camera on Ubuntu

I am quite new at Linux and I have to install this SwissRanger camera on Ubuntu. I am trying to follow their USB mounting instructions and I got stuck. From the instructions: Modify the usbdevfs ...
2
votes
2answers
480 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 ...
1
vote
1answer
27 views

Creating users with groups in Ubuntu Server? [on hold]

Typically when I create a new user in CentOS / Redhat with the command: useradd user The permissions that it is assigned to the user typically works fine. I believe everything is restricted to its ...
1
vote
0answers
708 views

Setting up VGA Passthrough on Ubuntu with KVM : error no iommu_group for device qemu-system-x86_64

I'm trying to configure the VGA Passthrough on the Debian SID because I want to use Debian on the first monitor and Windows 7/8 on the other one. I have tried with XEN and with KVM but in both case I ...
7
votes
4answers
24k views

How can I look up a username by id in linux?

The command id can be used to look up a user's uid, for example: $ id -u ubuntu 1000 Is there a command to lookup up a username from a uid? I realize this can be done by looking at the /etc/passwd ...
1
vote
3answers
1k views

ubuntu + how to install the patch command

Please advice how to install the patch command on Ubuntu Linux I download the following file , patch_2.6-2ubuntu1_amd64.deb ( from site - http://packages.ubuntu.com/lucid/patch ) But not clearly ...
12
votes
4answers
1k views

In Debian based systems, how do we purge configuration files of packages that have already been uninstalled?

To be more specific, I would like to do the equivalent of adding the --purge flag to the following command sudo apt-get autoremove --purge [package name] to packages that are no longer on the ...
1
vote
2answers
2k views

Unable to connect INTEX 3.5G (aka 普创E003) Wireless USB modem in Ubuntu 12.04 LTS

Can anyone help me out on connecting INTEX 3.5G 7.2 Mbps (aka 普创E003) Wireless USB modem in Ubuntu? Initially it is recognized as a storage device and the modprobe cmd does not create any impact on ...
3
votes
6answers
15k views

Black screen at boot with Mint and Ubuntu live CDs

I just bought an HP pavillion g6 laptop, with the hope of installing Linux on it. I have now tried both Linux Mint (my first choice) and Ubuntu, and both simply give me a black screen from the moment ...
1
vote
2answers
720 views

Installing mysql-server in vagrant bootstrap shell script (how to skip setup?)

I did try to install mysql-server on my Vagrant Ubuntu 12.04 LTS virtual machine. When I did so, the setup auto-starts. I can see this in the Vagrant output: While not mandatory, it is highly ...
1
vote
0answers
27 views
+100

Cannot connect PC and Android through bluetooth

I want to create a simple client/server app using bluetooth. I want to use an android as client and a Linux Mint 17 Cinnamon 64 bit as server. I found and adapted this script : import os import ...
1
vote
2answers
99 views

Arch, Ubuntu: So what's the deal with libudev.so.0?

I'm interested in building Linux desktop apps with Web front-end technologies. Both platforms I've tried -- Chromium Embedded Framework/CEFPython, and Awesomium, seem to have a dependency on ...
2
votes
1answer
25 views

number of open files configuration not operational

Addressing an error of Too many open files I was attempting to follow the suggestions here Although /etc/sysctl.conf fs.file-max = 70000 vm.swappiness = 10 and /etc/security/limits.conf nginx ...
3
votes
1answer
62 views

Ubuntu user disappeared from machine

Unsolved mystery - I was given a coworker's Ubuntu 12.04.1 LTS machine and set up my own (sudo/admin) user on there from the command line. I switched to my user (from his sudo/admin user) and ...
4
votes
1answer
7k views

org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed] while running eclipse on ubuntu

I was trying to open eclipse in my ubuntu VM with the below commmand.. And as soon as I do that, I always get the below exception - ubuntu@username-dyn-vm1-48493:~$ eclipse Eclipse: An error has ...
5
votes
4answers
6k views

Switch Fn key state

I have this issue with Lenovo Thinkcentre Edge. Its keyboard has Fn key, which acts in my Ubuntu (with Fluxbox) as if it is always "active/pressed". I can't use standard F1-F12 keys unless I hold ...
0
votes
1answer
716 views

Ubuntu 12.04 32 bit is slow on Virtual machine

I have installed Ubuntu 12.04 32 bit os on my Virtual machine. I have allocated 2GB ram to it. But the VM is running very slow, and left side taskbar is not visible. When I place my cursor on the ...
2
votes
1answer
477 views

How to open tty or execute some script when the shortcut Ctrl+Alt+F[1-6] doesn't work and X11 is partially frozen but system is still working?

I'm using Ubuntu 10.10 with Gnome on Acer Aspire One netbook. The X11 or just some parts of Gnome like panels and partially windows (details described below) are frozen which doesn't allow to do ...
1
vote
1answer
27 views

Accidentally deleted /bin/su

I was working in /bin on my Ubuntu system and ended up deleting su via a typing error while trying to do other editing. So now I have no way of swapping back and forth between users and root. I have ...
3
votes
1answer
1k views

Need to auto-login after logout on ubuntu

I've set up a kiosk using Ubuntu 12.04, and I'd like to have it autologin after a user logs out or if the screen locks, in case someone manages to get back to lightdm or tries to login to the ...
0
votes
3answers
557 views

“Package linux-image-3.5.0-44-generic is not installed” while installing quantal kernel

I am working on a Ubuntu Ubuntu 12.04.2 LTS (GNU/Linux 3.5.0-43-generic x86_64) machine. There are some packages that I need to install, and in order to be able to that, first I have to run apt-get ...
7
votes
5answers
10k views

invalid SSL_version specified at /usr/share/perl5/IO/Socket/SSL.pm line 332

Since I upgraded my PC from (k)ubuntu 12.04 to 12.10 I receive this error message when trying to send an email using sendemail. Installing an older version of IO::Socket::SSL is not an option. I ...
1
vote
2answers
6k views

Unable to set hostname for use within network

I am having a lot of trouble setting up a hostname for my home server for use within my home network. My home server is running Ubuntu 12.04 LTS and all packages are up to date. Management of this ...
5
votes
4answers
16k views

java plugin does not work in chromium-browser (all possible attempts exhausted)

I was using google chrome browser on Ubuntu 12.04 machine, recently I needed to switch to chromium-browser. I am using the version that is available on the Ubuntu software centre. The problem is that ...
1
vote
0answers
25 views

What is wrong with this upstart script?

I use the following upstart script: description "myjob" # Start up when the system hits any normal runlevel, and # shuts down when the system goes to shutdown or reboot. start on filesystem or ...
0
votes
0answers
25 views

How do I get the wallpaper to fit the width of my dual monitor setup in ubuntu?

The wallpaper I'm using doesn't fit the exact dimensions of my monitors combined, so when I set the wallpaper option to span I get black bars on the far right and left with the image centered in the ...