VirtualBox 4.3.28 released and ubuntu installation instructions included

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What is new in virtualbox 4.3.28

This is a maintenance release. The following items were fixed and/or added:

VMM: fixed a Guru Meditation when rebooting certain guests (for example Solaris doing fast reboot) by fixing the implementation for INIT IPI
VMM: added some information for diagnosing rare VERR_VMX_INVALID_VMXON_PTR Guru Meditations (VT-x only)
GUI: HID LEDs sync: prevent synchronization if VM window has no focus (Windows and Mac OS X hosts only)
GUI: fixed drag and drop moving the cursor between guest screens on certain hosts
3D: fixed a crash on restoring the VM state on X11 hosts (bug #12737)
3D: fixed a crash on Linux guest shutdown (bug #12772)
VRDP: fixed incompatibility with rdesktop 1.8.3
VRDP: fixed listening for IPv6 on some systems (bug #14038)
Storage: don't crash if creating an asynchronous I/O context fails (e.g. when starting many VMs) and show a proper error message
Floppy: several fixes
Audio: improved the behavior of the volume control for the HD audio device emulation
USB: increase the number of supported drivers from 3 to 5 (Windows hosts only)
PS/2 keyboard: synchronize the LED state on VM restore (Windows and Mac OS X hosts only)
NAT Network: when running multiple NAT networks with multiple VMs, only stop the respective services when stopping VMs (bug #14090)
NAT: don't kill UDP bindings on ICMP errors (bug #13475)
NAT: bandwidth limit now works properly with NAT (bug #11485)
BIOS: fixed the returned size value of the VBE 2.0 PMI function 0Ah (4.2.0 regression; bug #14096)
Guest Control: fixed parameter quoting in Windows guests (bug #13157)
Webcam passthrough improvements for Linux (V4L2) hosts to support more webcam models
API: don't fail starting a VM with VBOX_E_INVALID_OBJECT_STATE under certain conditions (bug #13617)
API: be more verbose on VBOX_E_INVALID_OBJECT_STATE if a medium is attached to a running VM (bug #13560)
API: fixed a bug which could result in losing certain screen resize events with multi-monitor guests
rdesktop-vrdp: fixed path to the keymaps (bug #12066)
rdesktop-vrdp: switch to version 1.8.3
Windows hosts: more hardening fixes (e.g. bugs #14051, #14052)
Linux hosts: another fix for activated SMAP on Linux 3.19 and newer (Broadwell and later; bug #13961)
Linux hosts: Linux 4.1 compile fix (bug #14081)
Solaris hosts: fixed using of VNIC templates with Crossbow based bridged networking to be compatible with vanity interface names
Mac OS X hosts: fixed crash during VM termination under rare circumstances
Windows Additions/WDDM: improved video memory utilization and allow more/bigger guest screens with large resolutions (including HiDPI)
X11 Additions: prevent flickering when updating mouse cursor
Solaris Additions: fixed incorrect usage of ‘prtconf' while installing Guest Additions (Solaris 10 only)

Install VirtualBox 4.3.28 on ubuntu 15.04/14.10/14.04

Open the terminal and run the following commands

You need to edit /etc/apt/sources.list

gksudo gedit /etc/apt/sources.list

For ubuntu 15.04 users add the following line

deb vivid contrib

For ubuntu 14.10 users add the following line

deb utopic contrib

For ubuntu 14.04 users add the following line

deb trusty contrib

Save and exit the file

Now install PGP key using the following command

wget -q -O- | sudo apt-key add --

Update source list

sudo apt-get update

Install virtualbox

sudo apt-get install virtualbox-4.3

If you have problem with the above PPA you can download .deb package from here.Once you have deb package you can double click on it to install this package.

If you want to install virtualbox in ubuntu 15.04

$ sudo add-apt-repository multiverse
$ sudo apt-get update
$ sudo apt-get install virtualbox

But this will install version 4.3.26

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