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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How to move a postgresql backup dump to an other server with a script?

I have on a ubuntu 14.04 Server some Backup Files from a PostgreSQL Database. How Can I move this with a daily backup script to an other server? I need a script that moves my files in path ...
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1answer
45 views

Which version of Ubuntu is my Linux Mint installation based on?

For any given version or installation of Linux Mint, how would I find out which version of Ubuntu it is based on? I'm sure it must be in documentation somewhere right?
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54 views

Unable to run executable on secondary machine

My primary computer can run a program (hc12-coff-gcc) located in the usr/local/bin directory. My secondary computer cannot run the same program. the usr/local/bin directory is in the PATH for both ...
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1answer
104 views

How do I start Unicorn using systemd/systemctl?

I've wrote a systemd file for systemctl to start unicorn: [Unit] Description=Unicorn server [Service] SyslogIdentifier=my-app-unicorn User=deployer PIDFile=/tmp/unicorn.my-app.pid ...
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2answers
114 views

virtualbox-5.0 won't install on ubuntu-server 14.04.4

I can't get virtualbox to install. I recently reinstalled my entire system with ubuntu-server 14.04.4. I added the virtualbox repository as recommended on their website: I added deb ...
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257 views

Cannot start snmpd correctly

I trying to setup snmp in an ubuntu-server 15.10 to perform some tests. I have installed snmp as: sudo apt-get install snmp snmpd snmp-mibs-downloader After the installation I commented the ...
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19 views

HDD virtualized to an image => grub error

I virtualized a linux ubuntu 14.04 distro, from a HDD to a VHD file but I get some grub issues that grub-repair can't fix. the error (while launching with virtualbox) is : error : file ...
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19 views

How do I customise a keyboard layout in Cinnamon / Ubuntu?

I can see in Cinnamon you can select a new keyboard layout in - start - keyboard - layouts. But none of the layouts there match my new keyboard. How do I redefine a single key (differently placed ...
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1answer
18 views

Drivers, Module - Kernel

Can somebody explain to me what is a character driver? Can somebody explain to me what is a character driver? Can somebody explain to me what is a character driver?
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1answer
37 views

Use “module load” as root on Ubuntu 14.04

I have a series of tools that I load into my workspace using "module load 'tool ". However, if I try and run this command as root (or just using sudo), I get "module:command not found". None of the ...
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0answers
42 views

Terminal colors changing when opening a new tab

I'm running Ubuntu 14.04 (x64 desktop edition) and I have an issue in my terminal (bash) where my colors seem to get "saturated" and my line cursor changes to black when opening a new tab, the first ...
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2answers
93 views

Blank 'Grub Boot Menu' when changing boot options

I was having the issue of a black screen on Ubuntu restart and startup. It seems like my monitor is somehow disconnected when I start Ubuntu because I get 'No Signal Detected'. I started following ...
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1answer
28 views

Packages and the like for configuring new systems [closed]

I'm faced with the prospect of moving from a server which has been configured previously with loads and loads of the sorts of tools you forget about day-to-day as you do various tasks (I'm talking ...
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1answer
57 views

CIB not supported: validator 'pacemaker-2.0', release '3.0.9'

I am trying to make two node clusters with pacemaker and corosync. When I want to change config with crm I get the following error: CIB not supported: validator 'pacemaker-2.0', release '3.0.9' ...
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1answer
27 views

Wacom Tablet (integrated; X201T) disconnects sporadically

I have an X201 tablet with stylus and finger multitouch running Ubuntu 14.04.4 with the 4.2.0 kernel. For no apparent reason, it seems to have an affinity for not recognizing finger (henceforth ...
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1answer
41 views

Unable to update hostname output for Ubuntu Server (on Digital Ocean)

I recently created a droplet server at Digital Ocean named: ubuntu-2gb-nyc3-01-2016-03-13 and then did a rename on the server at the Digital Ocean control panel, to exchange.mydomain.com. ...
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0answers
46 views

mysterious out-of-space message from rsync

I am mystified by the out-of-space message from rsync - I have enough freespace on the destination to hold everything, and I blv enough also on --vg-root as well. This doesn't seem to be the same ...
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1answer
38 views

Ubuntu, lua, nmap and sqlite3 - module 'luasql.sqlite3' not found

I need to work with nmap and sqlite3 and I installed lua 5.1 and lua-sql-sqlite3 on an ubuntu machine: sudo apt-get install lua5.1; sudo apt-get install lua-sql-sqlite3 Now, when I'm doing this: $ ...
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1answer
39 views

Apache server at new AWS EC2 instance is not reachable

I am not able to access my web server I recently set up on Ubuntu AWS EC2 instance: client:~ user$ curl yyy.yyy.yyy.yyyy curl: (7) Failed to connect to yyy.yyy.yyy.yyyy port 80: Operation timed out ...
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0answers
15 views

In Linux how to run a shell script automatically when the headphone is plugged in? [duplicate]

Is some kind of signal emitted when an earphone/headphone is plugged in? I want detect when they are plugged in and run a script accordingly.
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1answer
53 views

Restore Back In Time From Ubuntu To Debian

I used Back In Time (BIT) to back up my data to an external USB drive on Ubuntu 12.04. After problems with Ubuntu I made a fresh install of Debian 8.3. In Debian I have installed BIT and can see the ...
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1answer
77 views

Ubuntu 15.10 - Unable to disable daemon using Systemd

I've tried disabling MPD (Music Player Daemon) using Systemd: sudo systemctl disable mpd sudo systemctl status mpd mpd.service - Music Player Daemon Loaded: loaded (/lib/systemd/system/mpd.service; ...
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105 views

Asus EeeBook X205TA - Ubuntu (none sounds & network connection)

Have you tried anyone Ubuntu on this netbook? I bought this laptop. I created a bootable USB Ubuntu. The problem is that the sound and internet connection does not. Has anyone dealt with this problem? ...
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18 views

sources.list.d files are automatically configured: how can I change them persistently? [duplicate]

Google recently discontinued support for 32-bit Chrome repositories on Linux. That's fine; I don't care: I'm on 64-bit. No problem. Unfortunately, it causes apt update to fail because it fails to ...
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65 views

Cannot install some packages using apt-get or aptitude

It seems all the problems started when I used katoolin (a setup script for installing kali pentesting tools on ubuntu). Since using it and installing a few packages from it, I have gotten these errors ...
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1answer
93 views

Routing Problem with IP Forwarding on Ubuntu 14.04 and VirtualBox

I'm not entirely sure how to best title this question as the set up is a little complicated... but basically I have a routing problem with IP forwarding on my ubuntu server. On my ubuntu server (an ...
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1answer
69 views

Linux freezes randomly

I have an Acer Aspire ES1-311 Intel Pentium N3540 Quad Core 8GB 500GB 13.3 Laptop ever since I installed fedora 23 it keeps freezing randomly even sometimes during installation...........but I noticed ...
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34 views

Multiple Ubuntu Server Backups

I am soon to be dealing with multiple Ubuntu 14.04 Server Installations, none of which I will have physical access to. Some will be Digital Ocean Droplets, and some Mini-Server builds. I will have ...
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15 views

dual monitor support on a non-GNOME system

I have Ubuntu-14.04 with x11 drivers and lightweight WM installed on my laptop Toshiba Satellite Z930. I also have an external monitor connected to the laptop via HDMI interface. Currently, the ...
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1answer
31 views

Fcitx “Extra key for trigger input method” changes back to default after restart

Using Ubuntu 15.11. Configuring input using the 'Input Method Configuration' screen. Whenever I change "Extra key for trigger input method" it works for only that session. Once I restart the computer ...
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43 views

Macbook pro sd card reader doesn't work on Ubuntu 14.01

I have a macbook pro retina, the newest model. I used rEFind to dual-boot Ubuntu 14.01, but the sd card reader doesn't recognize the card. Is there a fix for that? Thanks.
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1answer
453 views

apache2.service Failed Because the Control Process Exited with Error Code

I am using Ubuntu 15 64-bit: $ uname -a Linux {hostname} 4.2.0-16-generic And I have installed apache2: $ sudo apt-get install -y apache2 I have a mod_xxx.so, which I have placed into: ...
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2answers
52 views

Using Grep Command Without Specifying a Certain Directory [closed]

Can you use the grep command without specifying a directory path afterwards? Example: $ sudo grep "filename" / I have also tried this: sudo find / -type f grep -l "filename" Still no luck. ...
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1answer
108 views

Change permissions for files created by docker daemon service

I'm trying to change the default permissions assigned to files when created by the docker daemon by changing the default umask. The docker daemon service runs as root and creates the files with umask ...
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1answer
33 views

No grub after installing ubuntu 14 or mint 17

Today i just received a new internal hard Hard drive for my HP Elitebook 840 G2 So i installed Ubuntu 14.04LTS, the installation was successful then i rebooted and i see no grub and Ubuntu not ...
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0answers
42 views

Adding a second GPU greatly reduces my graphics performance

I'm currently running Ubuntu 15 desktop with an ATI R9 390 and a 4k monitor via display port. Everything runs smoothly. I have a second monitor which is VGA-only, and since the R9 has no VGA ports, ...
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1answer
27 views

Why does Logic Application not work except directly under sudo?

I am trying to run Logic application to talk to my logic analyzer, and I observe the following behavior, after I install the rules under the driver. ./Logic ./Logic: cpp_libs/libc.so.6: version ...
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1answer
58 views

Does Linux Allow For Hiding Windows?

I'm currently a Windows user but I am looking to transition my main workstation to Linux like my servers. However I often use the Hide Window Hotkey Tool, this tool allows you to select windows to ...
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1answer
51 views

Crontab resetting itself

I have a computer with Ubuntu server 15.10 installed on it that sits in the same room I am in. I use it just as a Minecraft server, map renderer and whatever else php scripts I want to run scheduled ...
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1answer
59 views

Ubantu slow boot and shutdown issue : how can I fix this?

Initially my boot time was really low, it used to boot in seconds and user processes were also up and ready to use within a minute, now for some reason my boot up really slow and also my system never ...
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0answers
36 views

In Ubuntu 15.10, how to click to focus a window but not activate what you clicked on?

I recently got a new computer and installed Ubuntu 15.10 (dual boot with Windows 7). It's a Lenovo Thinkcentre with a first generation i5 cpu. If I have multiple windows open, to switch to another, I ...
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39 views

Why Nautilus is ignoring system theme?

Every time when my system starts up the Nautilus is ignoring system theme. I used Ubuntu Tweak to apply new GTK theme. My OS version is Ubuntu 15.10. The following commands makes Nautilus to respect ...
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0answers
13 views

How to force correct name for .desktop file

I'm developing a Qt application using CMake, and am trying to make it difficult to open more than one copy of the app at the same time (as with Mac application packages -- you have to call the ...
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0answers
28 views

Random Black Screen Crash Ubuntu 12.04

I recently backed my pc up and did a fresh install from the same 12.04 cd I always use and since have experienced frequent and what appear to be random crashes. It seems like some kind of driver issue ...
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0answers
163 views

Upgrading python to 2.7.11 on Ubuntu 14.04

I've been trying to upgrade my python to 2.7.11 or 3.4 (the latest one) but I'm having doing so. I followed the guide here: Upgrade to Python 2.7.11 on Ubuntu 14.04 LTS Everything completes fine but ...
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1answer
29 views

What is a kernel-source-tree?

What is the Linux kernel source tree? What does it contain and what is its purpose? I'm trying to build an external module and the tutorial I'm using says to make sure that a kernel source tree is ...
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1answer
76 views

XFCE - Autohide Animations

I am running Ubuntu with Unity. I also have an xfce panel installed on top of it. I have set it to autohide, but when it does it is blinks in/out of existence. I have tried setting an animation for ...
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8 views

grub and grub2 seem to run sequentially at boot time

Recently I have cloned my Ubuntu installation from one drive to another using clonezilla, parted magic. It seems that the clonezilla has put its own bootloader into the target drive. Before cloning, ...
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0answers
28 views

Remapping Caps Lock to ctrl+b [duplicate]

I recently moved to Linux from OSx and in there I had mapped Caps lock to Ctrl+b. This was mostly done because of tmux. How can I do this in Ubuntu 14? There is a very comprehensive answer here how ...
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2answers
19 views

How to know which files (scripts and configurations) I have installed by apt-get?

I always use rpm --query --package-name to see what files (scripts and configurations) I have installed. I'm looking for the similar command in ubuntu. Is there any equivalent command for apt-get?