VirtualBox has been updated to version 4.1.18. If you are already installing the older version of VirtualBox, you can simply upgrade by opening Help > Check for Updates. This tutorial will show you how to install a new copy of VirtualBox 4.1.18 under Ubuntu 12.04 or older.

 Here is what has been changed in this latest release:

  • VMM: fixed VERR_REM_VIRTUAL_CPU_ERROR under rare conditions after the guest has been reset (bug #5164 and others)
  • VMM: fixed host freezes with 64-bit guests on 32-bit Linux hosts (bug #10528)
  • VRDP: added a workaround for rdesktop clients not properly updating the screen size when minimized
  • AHCI: fixed a rare bug which can cause a guest memory corruption after the guest storage controler has been reset
  • NAT: another attempt to fix crashes under rare conditions (Windows hosts only; bug #10513)
  • Mac OS X hosts: addressed issues running Leopard / Snow Leopard (bug #10631)
  • Linux hosts / Bridged Networking: fixed the problem with device driver unloading on kernels 3.2.18 and newer due to an invalid reference counter (bug #10624)
  • Linux hosts / guests: Linux 3.5-rc1 fixes
  • Linux Additions: the guest content was sometimes not properly updated (bug #9887)
  • Solaris Additions: installer fix for X.org Server 1.11 and 1.12 

VirtualBox 4.1.18 Installation

Open the terminal and install VirtualBox 4.1.18 with these commands for Ubuntu 12.04 or older:

sudo sh -c "echo 'deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib' >> /etc/apt/sources.list"

wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -

sudo apt-get update

sudo apt-get install virtualbox-4.1

To install using Debian packages, check this page.

That's it!

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