Windows Host - Linux Guest - Seamless Mode

Posted on September 15, 2008 by nseidm1.
Categories: Windows, cpu, guest, host, hotkey, idle, kernel, linux, load, mode, seamless, virtualbox.

In pre 2.0 VirtualBox seamless mode was only for Windows guests on linux hosts. Now Linux guests on Windows hosts benifit from this invaluable feature. Albeit there are not many instances where a graphical linux program is require without a Windows alternative, but if need be the feature is available.

Just boot up your guest, and hit your hotkey + l and viola, VirtualBox rips the gnome, or kde docks right off the desktop and slaps it into Windows. Frankly it can’t get much better than this, and my main hopes for the future is better linux kernel support further reducing host CPU load when the guests are idle. This will further realize the dream of virtualization, which is the deployment of multiple virtual machines on a single host system. The less host CPU load experienced results in more guest OSs being deployable.

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VirtualBox 2.6.26 Kernel Support

Posted on September 13, 2008 by nseidm1.
Categories: 2.6.24, 2.6.26, etch, headers, kernel, lenny, modules, virtualbox.

With Debian Lenny you can update to the 2.6.26 kernel, but in VirtualBox support for this version is not ready. A kernel panic will not allow the system to boot into a stable state, therefore for the time being users must retain use of 2.6.24. One major drawback is that there are no headers for the 2.6.24 kernel in Lenny. This forces VirtualBox users to wait to install guest additions, thus slightly decreasing stability because of the timing benifits associated with the VirtualBox kernel modules.

Overall because of this it is most likely best to still use Etch until Lenny progresses a bit further, specifically including some needed kernel headers or VirtualBox provides an update for better support of the 2.6.26 kernel.

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