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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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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24 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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1answer
6 views

unable to locate package software-centre on chromebook

I've just installed Ubuntu via crouton on my hp chromebook 14, but I need to install software centre as I can't do anything without it. I try to run apt-get install software-centre but it returns ...
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44 views

Unable to install Ubuntu on 4TB hard disk [on hold]

I am trying to install Ubuntu(I tried these versions 12.04.1,12.04.2,13.10,14.04 and 14.04.2) in my workstation (Dell Precision Tower 7810, hard drive 3x4TB), but after completion of installation it ...
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1answer
55 views

Screen brightness adjustment not working in Ubuntu 14.04

When I try adjusting the screen brightness using the function keys on the keyboard, the adjustment scale is shown on the screen responding but the screen brightness is not adjusted. Tried ...
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8 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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1answer
860 views

qemu emulator for raspberry

I am trying to emulate a raspberry pi on ubuntu. I have tried several ways using several tutorials but every time, the emulator logs this: scsi: 0:0:0:0 ABORT operation started scsi: 0:0:0:0 ...
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How to install custom plugin on Google Ghrome Ubuntu 14.04

I have a problem while trying to install rutoken plugin for Google Chrome v. 40.0.2214.115 (64-bit) on Ubuntu 14.04. That's what I try: Download plugin from ...
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1answer
51 views

Ubuntu server 14.04 cannot reach dns but can ping

The server A has access to the Internet, since I get correct response when I use curl . And I have another server B which is free of this issue, of which /etc/network/interfaces and /etc/resolv.conf ...
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1answer
24 views

Ubuntu experience on a Chromebook [on hold]

So I want to buy a cheap laptop, just to code and I need Ubuntu for that. So I thought about Chromebooks, but some questions came to my mind: 1. Which methods are available to install ubuntu on a ...
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1answer
37 views

Routing ALL traffic through VPS

I recently acquired a Raspberry Pi and I'm setting it up for various things. I have a local router that the Pi is wired into along with my desktop computer. I want to be able to access the Pi from ...
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1answer
116 views

How do I know when I installed package FOO

I was wondering if I installed 'Tor' on my Ubuntu 14.04 or it was shipped as a default package since I hadn't remembered installation by myself. So what's the way to find out if a package is ...
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9 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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2answers
703 views

i3-wm not resizing screen resolution on login

I'm using Parallels for the Mac, but this may be relevant to other VMs too. Using Ubuntu 14.04, when I login using Unity it resizes the screen and uses all available screens (2 in my case), perfect. ...
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2answers
449 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 ...
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14 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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12 views

Ubuntu Linux 14.04 on Parallels Desktop 10, Mac OS X 10.10.2: Parallels and/or Ubuntu update broke Terminal (no command-line prompt) [on hold]

Apologies if reposts are not welcome; I just asked this question on "Ask Ubuntu" and was advised to post it here. I'm not clear on whether the problem is with Ubuntu or if it is more general, as I ...
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1answer
468 views

How to troubleshoot and fix Wifi driver on Wandboard DUAL?

Environment Wandboard DUAL C1 Ubuntu Trusty using these instruction Issue I was able to install Ubuntu Trusty and I am failing to get the Wifi driver to work. root@ubuntu-armhf:~# uname -a Linux ...
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2answers
18 views

No diskspace on AWS Image?

we are currently testing AWS, therefore I created an EC2 instance using a bitnami-magento image. The AWS intance has 10gb of space attached to it. Now all of a sudden, I am out of diskspace and I have ...
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3answers
4k views

Configure multiple interfaces with different hostnames using DHCP and DNS

I have a machine running Ubuntu 12.04 Server with two interfaces connected (eth0, eth1) to the network. Our network is set up so that a FreeBSD based DHCP server hands out leases and registers the ...
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1answer
1k views

How do I change file/directory permission of a nfs mounted directory, so I access files as user?

On a Ubuntu computer I mounted a directory from another computer using the following line in the fstab: 12.34.56.78:/space/Images /mnt/space/images nfs rsize=16384,wsize=16384,rw,auto,nolock 0 0 ...
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1answer
42 views

cd to my folders shows me an error

I just logged out my system and logged on. And i tried to get into my folder cd /u/folder It says Too many levels of symbolic links. But it worked yesterday. What could be the reason? I found ...
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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 ...
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1answer
45 views

update-rc.d squid3 init.d init weirdness

sudo service squid3 status works, implying squid is in upstart. However a listing of services using sudo service --status-all does not show squid. Neither does sudo update-rc.d squid3 defaults ...
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23 views

isc-dhcp-relay service doesn't work

192.168.2.1(dhcp server) -> (eth1 192.168.2.3)[ubuntu 14.04 dhcp relay server](eth0 192.168.1.1) -> Client isc-dhcp-relay successful installed, configuration file is #/etc/default/isc-dhcp-relay ...
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17 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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1answer
118 views

Why Linux games are less performanced than Win 7?

I had Windows 7 x64 and now I have Ubuntu 14.04 on notebook HP 4535s. I expected games to be faster in Linux than on Windows because of fewer machine requirements. But it isn't so... E.g., games via ...
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1answer
526 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 ...
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1answer
38 views

What's the diffrence between the various Ubuntu repository branches?

What's the difference between the different branches of the Ubuntu repositories? Such as main/universe/restricted and so on?
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7 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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2answers
470 views

How to fix sudden Ubuntu 14.04 graphics problem?

I have a dual boot Lenovo laptop (Windows 8 / Ubuntu 14.04) which worked just fine. Until today. When I log in to Ubuntu I type my password as usual and select for example 'Ubuntu' as the environment. ...
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23 views

Trouble calling syscall by name [migrated]

I am in process of adding system calls to linux Kernel 3.19. Tried out the following for adding a syscall 'add' for x86 arch in Ubuntu 14.04 LTS. src=3.19 source Added entry to ...
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1answer
419 views

How to write/edit/update the OsIndications efi variable from command line?

In the need to enter the UEFI firmware setup utility while using ultra fast boot (keyboard drivers are not loaded during POST), I wish to write to the "Os Indications" efi variable. My OS is Ubuntu ...
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3answers
607 views

Have to reinstall NVidia driver on every reboot

I am having an issue with my Nvidia driver after the latest update. Now, Every time I reboot the machine there is some conflict between two different version and I have to reinstall the driver before ...
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0answers
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Wifi not working on compaq 6715b running ubuntu 14.04

I'm trying to get WIFI running on an old compaq 6715b laptop. It does not show up in iwconfig, so I assume that I need to install drivers. I've tried using ndiswrapper, and tried "sudo apt-get install ...
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2answers
2k views

Linksys AE3000 install on linux

I bought a Linksys AE3000 wireless adapter hoping I could use it on my Ubuntu 12.04 box. I found a website that walked through using it, but it didn't work. I edited rtusb_dev_id.c to add: and then ...
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9 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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1answer
26 views

How do I run a service with numactl

I need to do something like this to run MongoDB $numactl --interleave=all /usr/bin/mongod --config /etc/mongod.conf & What should I change to be able to run the mongo daemon with the options ...
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2answers
553 views

Installed Linux, now Windows doesn't boot anymore

I had a working Windows 8.1 which I used regularly. Today I needed Linux, so I chose Ubuntu and installed it from a bootable flash drive alongside Windows. Everything worked well, I could choose which ...
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2answers
21 views

dnsmasq causes inability to resolve DNS queries made by host

On a headless Ubuntu 14.04 vanilla machine I setup dnsmasq as a DNS proxy with the following configuration in /etc/dnsmasq.conf no-resolv nameserver=<some working custom dns ip> port=5555 #to ...
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1answer
1k views

bash: /etc/bash.bashrc: Permission denied whenever I open a terminal

On Ubuntu 13.10, when I open a new terminal, I sometimes get the following output on the terminal: bash: /etc/bash.bashrc: Permission denied However, the permissions should be fine: >ls -l ...
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1answer
15 views

Is it possible to limit the set of English locales on a system?

On Debian and Ubuntu is it possible to limit the locales which have to be configured? I know that /var/lib/locales/supported.d/local and /var/lib/locales/supported.d/en govern which locales are being ...
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1answer
58 views

Samba Tuning (Very low data transfer rates)

I have been trying to tune my Samba server for a while now and have had very little luck. At first I thought it could have had something to do with my router but recently purchased a new one with ...
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1answer
697 views

SMBFS Mount suddenly stopped working. CIFS error

When I came in to work today, a mounted drive on our server suddenly had stopped working. In my /etc/fstab I have the following line: //172.22.64.50/Web/ /mnt/netapp smbfs ...
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1answer
25 views

virtualbox - existing folder in ubuntu as shared folder

I have some existing directory in virtualbox running ubuntu, and would like to make this folder a shared folder in virtualbox, so that the host OS, will see it. The end goal is to use git in the host ...
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1answer
20 views

Multithreading in Mail server (Postfix)

I need to perform multithreading on postfix mail server. I read about POSIX multithreading but could it be linked to postfix smtp server and if yes then how? System Specification: ubuntu 14.04 LTS and ...
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3answers
547 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 ...
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1answer
25 views

Automatically update hwclock at boot

We're having a small issue with our Beagle Bone Blacks. Since they do not come with a RTC battery, when they lose power, the hardware clock gets messed up. I need a simple and clean way of syncing the ...
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1answer
647 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 ...
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1answer
28 views

Directory permissions for web server

Hi all I'm fairly new to permissions in a web server environment so please bear with me. I'm experiencing a problem (I believe) having to do with permissions to a directory on my server. The file ...