This is a quick step by step video tutorial on how to install Ubuntu 12.04 LTS (Precise Pangolin) on Oracle VirtualBox Manager v4.3.10. This release came with a number of features and bug fixes between since release 12.04.3 Highlights of Ubuntu 12.04.4 LTS (Precise Pangolin): There is a new way to quickly search and access menu and indicator actions, called the “HUD” (Heads-Up Display) System Settings has several new “options” to customize Unity’s look and behavior Nautilus quicklist support has been added to Unity launcher Network Manager now uses dnsmasq for improved DNS reliability and support for split-DNS on VPN links The default music player has been switched to Rhythmbox, LibreOffice has been updated to 3.
R is a free software environment for statistical computation and graphics. It consists of a language plus a run-time environment with graphics, a debugger, access to certain system functions, and the ability to run programs stored in script files. Below is steps to installing this on a Ubuntu 12.04 64bit OS Step 1: Uninstall Previous R-base installation sudo apt-get remove r-base-core Step 2: Update Sources.List File – Edit the sources.list file sudo gedit /etc/apt/sources.