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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Program does not terminate when called from udev

I've written a program in C#/Mono that probes a device to determine if it is a modem. The program works fine from the command line. However, when it is called from PROGRAM= in a udev rule, the ...
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985 views

problem dhcp3-server ubuntu server 11.04

I installed dhcp3-server in ubuntu server 11.04 apt-get install dhcp3-server However, an error message during installation: Traitement des actions différées (« triggers ») pour « man-db »... ...
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17 views

installing mongodb with linuxbrew

I want to install mongodb with brew in ubuntu 15.04 but despite several attempts to install i can't do that, even if I completely remove homebrew and reinstall it. when i type in terminal : brew ...
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11 views

connecting to virtualbox ubuntu from osx extremly slow

I am running ubuntu 10.04.x as guest on virtualbox from osx x 10.10.x host It works (kind of), but after working a while with it and also after power sleep it can get almost unusable slow. It looks ...
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12 views

Why can't I connect to 5ghz?

In "Edit Connections" I chose mode "Infrastructure". In router page (BT Home Hub), it shows that my android phone is connected to 5ghz, and my laptop still uses 2.4ghz. What can I do?
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19 views

Postfix problem with sending and receiving emails

I have had problems for one week with the email server Postfix. This came after running the antivirus ClamAV with the remove option on. When reading the mail log I keep getting the error message ...
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31 views

gnome power manager

Last night I was trying to sort out a problem with evolution to enable me to delete emails as the disk is getting rather full. I had deleted some files in the evolution folder ( .cmet and .index). I ...
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24 views

Error installing grub on bootable USB drive

I want to deliver a Linux tool as a bootable USB stick and so I am trying to create a USB stick with the Ubuntu core. I am following the steps at What commands are needed to install Ubuntu Core? But ...
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8 views

Ubuntu automout+NIS startup conflict

I have an Ubuntu 14.04 system using NIS for login. On startup it seems that automout is starting before NIS, and then not honoring the auto.home NIS pushes out to do NFS for home directories. ...
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14 views

Dav SVN apache mod not working in Ubuntu trusty when there are spaces in the url

I am using Ubuntu 14.04.2 LTS with subversion 1.8.8 and attempting to set up remote svn access via apache2 with mod_dav_svn - this is a migration to linux from a windows server running apache2. The ...
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22 views

What could be the output of command `lsblk -f -r | grep ' /' | grep -v ' /boot'` on encrypted drives?

Suppose we have drives which are encrypted, what could be the output of following command in Debian based (specially Ubuntu OS)? lsblk -f -r | grep ' /' | grep -v ' /boot'
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19 views

Symbolic link not allowed apache 2.4 chiliproject

Few hours ago I upgraded ubuntu 13.10 to 14.04 LTS. I have 1 problem with chiliproject application wich running on Rails. I got error 403 when I'm trying to access my chiliproject application. In ...
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11 views

Subversion server on ubuntu with mutiple repositories and checkout problem

I have 3 customers, FirmA, FirmB and FirmC. Under directory /srv I've created three subdirectories, FirmA, FirmB and FirmC that will act as a svn root for every firm. Inside svn root directories I've ...
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20 views

date advancing quickly ubuntu 14

after an upgrade of my server from ubuntu 12.04 LTS to ubuntu 14.04 LTS my system date is advancing quickly (taking 1h every 10 minutes). I tryied to install an ntp server to correct date but no way ...
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23 views

Incorrect installation of python-2.7.2 - cannot use zlib

I am installing python 2.7.2 from Python-2.7.2.tar on Linux Ubuntu-14.04. I untar it, then ./configure --prefix=/apps/python/install/2.7.2. I then make and get : Python build finished, but the ...
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29 views

find the cause of file corruption when copying files to a network share on an Ubuntu machine

I am copying files from my SD card to my Ubuntu server via Windows 7 using a network drive. The problem is that sometimes, 2 files out of 150, are corrupted during transfer. See here 2 example files ...
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33 views

Packets drops seen in physical interface while using kvm bridge

In ubuntu kvm hypervisor we are seeing packet drops in the physical interfaces once we create the bridge. Below is the output of ifconfig, br1 Link encap:Ethernet HWaddr xx:xx:xx:xx:xx:xx ...
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35 views

Error installing Ubuntu on VirtualBox

I'm trying to install many different versions of Ubuntu (12.04/14.04, amd64/x86, server/desktop, etc.) on VirtualBox 14.3.26 on OSX 10.10 and I'm getting the following error: [ 0.000000] Fast TSC ...
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16 views

Missing Close/Max/Min icons in Nautilus in ubuntu Gnome

I've installed Ubuntu 13.04 GNOME and i can't see no Close/Max/Min icons in full size of nautilus.. how can i fix it?
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22 views

postfix some users can send mail to the (distribution lists) and other users not

How can I do the following things: Some users can send mail to the mailing list (distribution lists) and other users not. For example: the everyone@mycomp.com will be able to send e-mails only for ...
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56 views

Suspend option disappear from shutdown dialog on Mint 17.1 Cinnamon

Previously I have a "Suspend" option when I open shutdown dialog, not sure why (probably because I did a apt-get upgrade I found the "suspend" option has gone: Another thing is even I set my power ...
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18 views

Java JRE 6 installation

I installed Java 6 (jre-6u45-linux-x64.bin) on a Ubuntu 12.04 machine following the procedure from this link: http://ubuntuforums.org/showthread.php?t=1904467. When I later installed Java 7 and ...
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85 views

Sound is not working in Ubuntu 14.04: suddenly stopped

The sound suddenly stopped working in my Ubuntu, so I googled and followed this link but it doesn’t work to me. Output of aplay -l: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA ...
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58 views

Terminal Emulator with CTRL+Scroll Zoom

Are there any Linux Terminal Emulators that offer "control & scroll zoom" (allowing you to adjust the visible size of fonts by holding down ctrl and scrolling your mouse-wheel)? Recently on ...
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31 views

eth0/usb0 bridge breaks after removal and replacing android phone

I'd like some help with a networking bridge issue I've run into. I'm trying to make a bridge with eth0 and usb0 (my android phone). After running the brctl commands the bridge works wonderfully. But ...
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77 views

How do I get Ubuntu to use Anaconda's python instead of the standard /usr/lib/python…?

I installed Anaconda using instructions provided on the main website, which are similar to those that can be seen here: http://askubuntu.com/questions/505919/installing-anaconda-python-on-ubuntu ...
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33 views

Mounting nfs4 partition over ssh tunel

I am following this manual on how to mount an nfs port over an ssh tunnel: https://blogs.oracle.com/shepler/entry/tunneling_nfs_traffic_via_ssh I need this because I want to mount an nfs partition ...
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48 views

Not able to boot into ubuntu or windows

prerequisites you will need to know regarding my problem earlier I had Ubuntu 13 version, due to some unknown reason, when I restarted my computer to enter into windows it went directly to grub ...
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34 views

Compiling a loadable kernel module(Debian/Ubuntu)

This question is a follow up of this one. I am trying to compile the ELF loader as an individual LKM and use it as a standalone application(replacing the original module within the base kernel sounds ...
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33 views

Error while setting up environment for running swift

I am getting the following error when running the script remakerings # remakerings Traceback (most recent call last): File "/usr/local/bin/swift-ring-builder", line 5, in <module> ...
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29 views

Stability of internal Wireless module or adpater in Ubuntu

This is an update to my previous problem with wireless adapter or module in Ubuntu 12.04 on Thinkpad T400. Now I have installed 14.04. Sometimes when I move my laptop around a little, the ...
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21 views

Ubuntu server install hangs at “retrieving grub-mount-udeb”

I am trying to install Ubuntu server on an HP Pavilion Media Center m8300f that I got from a friend, and it keeps hanging at retrieving grub-mount-udeb. I previously had Xubuntu on it, but now I just ...
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348 views

Trying to install Ubuntu on MacBook Pro 5,3 - getting i8042 error

I'm a newbie to Linux trying to install Ubuntu via a USB stick on my 2009 MacBook Pro 5,3 currently running the latest version of Yosemite. Problem is, I'm getting a i8042: No controller found error ...
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15 views

Why APT shows inaccurate “Need to download” values?

Sometimes if I Ctrl+C during apt-get upgrade/install *** in terminal, or cancel Software Update UI in Ubuntu and resuming them later I see something like this (regardless the actual package) I ...
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40 views

Why does my SD card need authentication to access?

I'm running Ubuntu 14.04 on a Toshiba Chromebook 2 via crouton. I recently reformatted a 256GB SD card that I keep in my chromebook at all times. My problem is that every time I try to access my SD ...
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29 views

Cobbler+Ubuntu: Client can't find preconfiguration file

Trying to install an Ubuntu 14 host with cobbler. The host boots and configures the ethernet interface (I can ping it), then errors out with "Failed to retrieve the preconfiguration file \ The file ...
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23 views

Thunderbird: server connection slow after restoring backup on Mint

I've made a copy of the .thunderbird folder in my home directory (on Ubuntu 12.04) and restored that backup on a freshly installed Mint 17.1 Cinnamon using the Profile Dialog of Thunderbird. ...
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18 views

Visual Boy Advance Not Running Correctly

Whenever I run a pokemon rom on my vba 1.8.0 on my Ubuntu 12.08 computer, it seems to be doing a color inversion (i.e. the text is in a black box as opposed to a white box, the players face is black ...
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82 views

Executing Minecraft Server Commands via SSH and Screen

I'm extremely new to linux, so please help me out if you can! I have read many of the posts about managing/monitoring servers using SSH and Screen, but have not found anything regarding my particular ...
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40 views

How do I decrypt this hard drive?

In 2011 I installed Ubuntu server edition on an old Dell that I had laying around. During the install process I was using the gui installer and opted to set disk encryption on the disk drive. During ...
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17 views

Xen ERROR Couldn't find xen kernel for Ubuntu tree

xen-4.2 running on server with multiple CentOS running guest, But when i am trying to install Ubuntu i got following error. How do i install Ubuntu on CentOS Xen Server? [root@example ~]# ...
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47 views

hauppauge PCI cards /dev/video0 no longer showing up after hard disk replacement

I had a working MythTV DVR a couple years ago. The hard disk failed, so it sat in the corner for a couple years. Recently, I pulled it out, put a new hard disk in it, and installed the latest ...
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39 views

How Do I Preserve the TimeStamp of transferred Files in Nemo for SSH Uploads?

I am managing some web app development and am using Linux Mint/Cinnamon Nemo to SSH to some Ubuntu servers. When I upload a file, I would like it to retain the file modified data as it exists on the ...
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11 views

Disconnect of primary OpenLDAP freezes network

I am running two Ubuntu 12.04 LTS systems, one physical one virtual, configured as primary/secondary. Physical - Primary LDAP, Secondary DNS/DHCP Virtual - Secondary LDAP, Primary DNS/DHCP ...
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44 views

hard drive formatted while Linux setup, lost partitions

I have installed Ubunto 14.04 on sda1. but after the installation finished, all the partitions are gone . I have important data on sda5 , and when I run the following command : sudo fdisk -l in the ...
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201 views

Bad resolution (max 1024x768) ElementaryOS (Ubuntu)

I installed Ubuntu (Elementary OS) a week ago and the resolution was always max 1024x768, but I want 1920x1080. I have searched in the internet for solutions, but I didn't find working ones. I tried ...
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25 views

Ubuntu 12.04 boots into wrong virtual console

If I turn on my PC with Ubuntu 12.04, then it displays information from seventh virtual console. It is also the one where X server should be started. Last messages I see in seventh virtual console ...
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18 views

how to build uuid ossp for postgres on ubuntu 14 installing openbravo

I am facing problem while executing the ant install.source command. SQL is working fine it's just a single error that i am facing is **> SQL Command failed with: ERROR: could not access file ...
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66 views

Broken iSSD on motherboard freezes Ubuntu 14.04

I have an Asus UX32VD laptop which has a primary harddrive where the OS is installed and a small iSSD of 24GB on the motherboard which is not used for anything. I'm running Ubuntu 14.04 and Windows 7 ...
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34 views

keep getting broken pipe when ssh

I'm using Ubuntu 14 LTS with two machines. When I ssh into the remote machine, I keep getting pipe broken after une minute or two, and in my ssh client I set up the keepalive already. This happens ...