
13 Known limitations
–
OVA archives (TAR containers) are not yet supported.
–
Remote files via HTTP or other mechanisms are not yet supported.
•
Host-only networking.
Creation/deletion of host-only adapters are supported
for Windows hosts only presently. On other platforms, there is one fixed host-
only interface called “vboxnet0” presently. This will change in a future release.
•
Vista 64-bit hosts
have stability issues when using USB.
•
Mac OS X host.
The following restrictions apply (all of which will be resolved
in future versions):
–
No support for audio input.
–
The numlock emulation has not yet been implemented.
–
The CPU frequency metric is not supported.
–
3D OpenGL acceleration. In general the OpenGL support for Linux guest is
experimental. This counts especially in combination with compiz enabled
window managers. Additional we are aware of the following issues:
∗
OpenGL windows aren’t updated in the Dock Icon real time preview.
∗
There are several redraw problems with compiz enabled window man-
agers on Linux guests. E.g. after save/restore state or a resize of the
guest window.
∗
OpenGL host support is not yet available on 64-bit kernels (Mac OS X
10.6).
•
Linux hosts.
There are a few problems when compiz is used as the host’s win-
dow manager, notably:
–
seamless mode does not work well (garbled screen display if no windows
are open in the guest);
–
OpenGL guest acceleration (added with 2.1) is very slow.
If you experience these problems, you way want to try using a different window
manager, such as metacity.
•
Solaris hosts.
For OpenSolaris and Solaris 10 U5/U6, the following restrictions
apply:
–
There is no support for USB on Solaris 10 hosts. On other supported Solaris
systems (OpenSolaris and Nevada), support is experimental. USB device
filters do not work at all.
–
No support for audio input.
–
Only experimental USB support for OpenSolaris/Nevada hosts (versions
109 and higher recommended).
214