Install Guest Addition VirtualBox for Linux

As mentioned in the section called “Some terminology”, the Guest Additions are designed to be installed inside a virtual machine after the guest operating system has been installed. They consist of device drivers and system applications that optimize the guest operating system for better performance and usability. Please see the section called “Supported guest operating systems” for details on what guest operating systems are fully supported with Guest Additions by VirtualBox.

The VirtualBox Guest Additions for all supported guest operating systems are provided as a single CD-ROM image file which is called VBoxGuestAdditions.iso. This image file is located in the installation directory of VirtualBox. To install the Guest Additions for a particular VM, you mount this ISO file in your VM as a virtual CD-ROM and install from there.

Each version of VirtualBox, even minor releases, ship with their own version of the Guest Additions. While the interfaces through which the VirtualBox core communicates with the Guest Additions are kept stable so that Guest Additions already installed in a VM should continue to work when VirtualBox is upgraded on the host, for best results, it is recommended to keep the Guest Additions at the same version.

there is tips for installing guest addition for linux :

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Unexpected error about USB 2.0

It’s really strange (again). I had successfully started the guest OS, and shut down at least 2 times (because I remember installing the new version addition). Last I saved the state and now I tried to resume it, I got this error:

Failed to open a session for the virtual machine Windows 7. Implementation of the USB 2.0 controller not found! Because the USB 2.0 controller state is part of the saved VM state, the VM cannot be started. To fix this problem, either install the ‘Oracle VM VirtualBox Extension Pack’ or disable USB 2.0 support in the VM settings (VERR_NOT_FOUND). Unknown error creating VM (VERR_NOT_FOUND).

What’s the meaning of it? I had already several times of startup/shutdown, yet it complains about USB 2.0 support if I save it.

Recently when I opened a saved Windows 7 virtual machine in VirtualBox 4.0.2 after the update, it showed a message about ‘ Oracle VM VirtualBox Extension Pack’ for better USB2.0 support. Its because of updated 4.0.2 version and features. The warning message did not give proper  information of downloading and installing  this package. This small guide shows how to download and install Oracle VM VirtualBox Extension Pack in Windows host machine.  Here is the message,

Implementation of the USB 2.0 controller not found!
The device will be disabled. You can ignore this warning but there will be no USB 2.0 support in your VM. To fix this issue, either install the ‘Oracle VM VirtualBox Extension Pack’ or disable USB 2.0 support in the VM settings

Its always better to have a guest operating system inside desktop virtualization software with USB 2.0 support for faster data transfer.

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How to Clone Virtual Machine in Oracle Virtual Box

What is Cloning of Virtual Machine?

Cloning virtual machines allows duplicating pre installed and configured virtual machines very easily without re installing OS and other programs. This is the ideal method to create multiple similar virtual machines in short time.

VMware workstation has two options to createcloning. Normal Full cloning and linked cloning. Sun VirtualBox cloning is slightly different which involved two steps are.

1)      Clone the hard disk of existing virtual machine

2)      Create a new virtual machine with cloned Hard disk.


simple steps

VirtualBox hard disks saved as VDI files in virtual machine location. Cloning these.VDI files doesn’t mean copying and pasting these files. Duplicating these VDI files by Windows copy paste method doesn’t work since each VDI files have unique UUID which should not duplicate in Sun VirtualBox in same host. There for, we have use a tool called ‘clonehd’ to duplicate VDI files with different UUID.

When I tried to import the duplicated VDI files by Windows copy paste option, I get following error when try to import to VirtualBox media manager.

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