Make sure the version of both VirtualBox and its Guest Additions match. Otherwise, there will be compatibility issues. Run the Virtual machine next, and click on Devices available on VirtualBox menu. Audio chipsets from Realtek are used in motherboards from many different manufacturers. If you have such a motherboard, you can use the drivers provided by Realtek.
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When automatic mounting is enabled for a shared folder, the Guest Additions service will mount it for you automatically. For Linux or Oracle Solaris, a mount point directory can also be specified. If a drive letter or mount point is not specified, or is in use already, an alternative location is found by the Guest Additions service.
The service searches for an alternative location depending on the guest OS, as follows:. Search for a free drive letter, starting at Z:.
If all drive letters are assigned, the folder is not mounted. Linux and Oracle Solaris guests. Access to an automatically mounted shared folder is granted to everyone in a Windows guest, including the guest user.
For Linux and Oracle Solaris guests, access is restricted to members of the group vboxsf and the root user. Oracle VM VirtualBox enables you to drag and drop content from the host to the guest, and vice versa.
For this to work the latest version of the Guest Additions must be installed on the guest. Drag and drop transparently allows copying or opening files, directories, and even certain clipboard formats from one end to the other.
For example, from the host to the guest or from the guest to the host. You then can perform drag and drop operations between the host and a VM, as it would be a native drag and drop operation on the host OS.
At the moment drag and drop is implemented for Windows-based and X-Windows-based systems, both on the host and guest side. In the context of using drag and drop, the origin of the data is called the source. That is, where the actual data comes from and is specified. The destination specifies where the data from the source should go to. Transferring data from the source to the destination can be done in various ways, such as copying, moving, or linking.
At the moment only copying of data is supported. Moving or linking is not yet implemented. When transferring data from the host to the guest OS, the host in this case is the source, whereas the guest OS is the destination. However, when transferring data from the guest OS to the host, the guest OS this time became the source and the host is the destination.
For security reasons drag and drop can be configured at runtime on a per-VM basis either using the Drag and Drop menu item in the Devices menu of the virtual machine, as shown below, or the VBoxManage command. Disables the drag and drop feature entirely. This is the default when creating a new VM. Host To Guest. Enables drag and drop operations from the host to the guest only. Guest To Host. Enables drag and drop operations from the guest to the host only.
Enables drag and drop operations in both directions: from the host to the guest, and from the guest to the host. Drag and drop support depends on the frontend being used.
At the moment, only the VirtualBox Manager frontend provides this functionality. The modifyvm and controlvm commands enable setting of a VM's current drag and drop mode from the command line.
As Oracle VM VirtualBox can run on a variety of host operating systems and also supports a wide range of guests, certain data formats must be translated after transfer. This is so that the destination operating system, which receives the data, is able to handle them in an appropriate manner. When dragging files no data conversion is done in any way. For example, when transferring a file from a Linux guest to a Windows host the Linux-specific line endings are not converted to Windows line endings.
Plain text: From applications such as text editors, internet browsers and terminal windows. Directories: For directories, the same formats apply as for files. If you start Oracle VM VirtualBox with Administrator privileges then drag and drop will not work with Windows Explorer, which runs with regular user privileges by default.
On Linux hosts and guests, programs can query for drag and drop data while the drag operation is still in progress. This currently is not supported. As a workaround, a different file manager, such as Nautilus, can be used instead.
This works for all supported host platforms, provided that your host operating system can make use of your accelerated 3D hardware in the first place. It is only available for certain Windows, Linux, and Oracle Solaris guests. In particular:. OpenGL on Linux requires kernel 2. Ubuntu As a result, the Guest Additions installation program offers Direct3D acceleration as an option that must be explicitly enabled.
Also, you must install the Guest Additions in Safe Mode. Because 3D support is still experimental at this time, it is disabled by default and must be manually enabled in the VM settings. Untrusted guest systems should not be allowed to use the 3D acceleration features of Oracle VM VirtualBox, just as untrusted host software should not be allowed to use 3D acceleration.
Drivers for 3D hardware are generally too complex to be made properly secure and any software which is allowed to access them may be able to compromise the operating system running them.
In addition, enabling 3D acceleration gives the guest direct access to a large body of additional program code in the Oracle VM VirtualBox host process which it might conceivably be able to use to crash the virtual machine. The Aero theme is not enabled by default on Windows. See your Windows platform documentation for details of how to enable the Aero theme.
This driver acts as a hardware 3D driver and reports to the guest operating system that the virtual hardware is capable of 3D hardware acceleration. When an application in the guest then requests hardware acceleration through the OpenGL or Direct3D programming interfaces, these are sent to the host through a special communication tunnel implemented by Oracle VM VirtualBox.
The host then performs the requested 3D operation using the host's programming interfaces. With this feature, if an application such as a video player inside your Windows VM uses 2D video overlays to play a movie clip, then Oracle VM VirtualBox will attempt to use your host's video acceleration hardware instead of performing overlay stretching and color conversion in software, which would be slow. This currently works for Windows, Linux and Mac OS X host platforms, provided that your host operating system can make use of 2D video acceleration in the first place.
Because 2D support is still experimental at this time, it is disabled by default and must be manually enabled in the VM settings. The driver sends all overlay commands to the host through a special communication tunnel implemented by Oracle VM VirtualBox. On the host side, OpenGL is then used to implement color space transformation and scaling.
With the seamless windows feature of Oracle VM VirtualBox, you can have the windows that are displayed within a virtual machine appear side by side next to the windows of your host. This feature is supported for the following guest operating systems, provided that the Guest Additions are installed:. After seamless windows are enabled, Oracle VM VirtualBox suppresses the display of the desktop background of your guest, allowing you to run the windows of your guest operating system seamlessly next to the windows of your host.
The Host key is normally the right control key. This will enlarge the size of the VM's display to the size of your host screen and mask out the guest operating system's background. This provides the following advantages:. For example, to monitor VM performance and statistics. Arbitrary string data can be exchanged between guest and host.
This works in both directions. To accomplish this, Oracle VM VirtualBox establishes a private communication channel between the Oracle VM VirtualBox Guest Additions and the host, and software on both sides can use this channel to exchange string data for arbitrary purposes.
Guest properties are simply string keys to which a value is attached. Installing the VirtualBox Guest Additions. Install Guest Additions Menu. AutoPlay Window. Windows Security Dialog.
This appears to have been broken in r Terribly sorry. I just discovered the same with a guest running CentOS 6. The bug still exists in the Guest Additions for 5. TonyMo Sorry about this, but could you recheck that? Installing the 5. If that was the case then you should be able to re-install the 5.
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