Ubuntu
Basics
How to Change Update Check Fequency & Automatically Install Security Updates
This post will show you how to change how frequently your system checks for updates and ensure that you always have security updates installed as soon as they are available.
Fixes
Disable Apport Error Messages - 'The application [app] has closed unexpectedly.'
Getting frustrated with the number of Apport error messages that keep popping up, like in the image below telling you 'The application [app] has closed unexpectedly.'? Follow these simple steps to disable the messages.
Fixes
Enable Ubuntu Restricted Extras & DVD Playback
If you have tried to play a DVD in Ubuntu you may have encountered some issues. DVD playback (and other non-free media formats) can easily be enabled following this short guide.
Fixes
Fix 'Graphics Unknown' in Ubuntu 12.10
If your new installation of Ubuntu 12.10 is not detecting your graphics and displaying 'Graphics Unknown' the following may help.
Fixes
Fix 'Graphics Unknown' To Enable Unity 3D Ubuntu 12.04
If you are unable to access Unity 3D (system loading in to Unity 2D as by default) it may be worth doing the following which may sort the issue.
Fixes
Fix No Sound / Turn Off Auto Mute in Ubuntu 12.10
If your new installation of Ubuntu 12.10 is has no sound or seems to be permanently muted the following may help.
Fixes
Fix 'Wireless is disabled by hardware switch' on Dell-Laptop
If you are having problems connecting your Dell Laptop to a WiFi network and are seeing 'Wireless is disabled by hardware switch' in the network menu the following steps may be what you are looking for.
Install Preparation
How To Create A Bootable Live CD/DVD
Creating a bootable live CD/DVD allows you to Install Ubuntu, or another Linux Distro, on your Computer or even just try it without installing it.
Note: Ubuntu 12.10 onwards requires a DVD, due to the increase in the image size it will not fit on a CD.
Install Preparation
How To Create A Bootable Live USB
Creating a bootable live USB allows you to Install Ubuntu, or another Linux Distro, on your Computer or even just try it without installing it.
Install Preparation
How to find out if your Processor is 64-bit or 32-bit
Usually when installing a Linux distro you have the option to install either 32-bit or 64-bit. This quick guide will help you choose whether you are currently on linux, Windows or Mac OSX.
Install Preparation
Preparing VirtualBox for Virtual OS Installations
Whether you want to Install Ubuntu within Windows/Mac or install another OS within Ubuntu this guide will show you how to prepare VirtualBox for a Virtual Installation.
Install Preparation
Ubuntu 12.04 VirtualBox Install
If you would like to try Ubuntu without affecting your main machine or if you want to test something on Ubuntu in a safe environment you can create a virtual installation. To do this you can use VirtualBox, a general-purpose full virtualizer, extremely feature rich, high performance and free.
Logical Volume Manager
Ubuntu LVM Guide - Part 1
This guide will help you get to grips with the fundamental concepts of logical volume management in Ubuntu. We'll then run through preparing disks for lvm, extending and reducing an existing logical volume, and we'll show you how to add a new logical volume.
Logical Volume Manager
Ubuntu LVM Guide - Part 2 (Snapshots)
In this LVM Guide, we'll show you how to use lvm snapshots for backups and how to revert a logical volume to a previous state e.g. fix your root filesystem if some "experiment" has broken your system.