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.