> I think this has been a bit understated in the current discussion, namely
the main
> advantage of Xen, the paravirtualization. Xen really is a server solution
where virtualbox > is a desktop solution.

Yes you could run Backtrack in para virtulisation and you get near bare
metal performance, but you will need to find/build a xen-kernel for the DomU
that has all of the modules/drivers that back track requires.

I run Xen on RHEL5 and Centos servers at home and in production with
paravirtual DomU's with out issue, but these are built from the Centos/RHEL
ISO images. The GTK Virtual Machine Manager works really well for building
new DomU's

Dale

On Tue, Jul 28, 2009 at 5:31 PM, Dmitry Nedospasov <[email protected]>wrote:

> On Jul 28, 2009, at 06:12 , Dale Stirling wrote:
>
>> Xen will work for full virtulisation and run Backtrack (haven't tested).
>>
>
> I think this has been a bit understated in the current discussion, namely
> the main advantage of Xen, the paravirtualization. Xen really is a server
> solution where virtualbox is a desktop solution.
>
> What does paravirtualization mean? Well, I run Xen with a not noticeable
> performance hit on my atom subnotebook (Lenovo S10e), where virtualbox
> doesn't run nearly as smoothly.
>
> Unfortunately, at least from my experience, Xen also has a much steeper
> learning curve than virtualbox, which starting with 2.0 really is as simple
> as clicking through some menus. It might help asking around in ##xen on
> freenode when you're starting, the guys there are extremely helpful.
>
> I think if you have the time its definately worth trying out Xen because
> its really a great tool, especially since it supports almost all hardware
> supported by the linux kernel, whereas something like ESXi limits you much
> more in terms of hardware.
>
>
>  Xen delivers it Graphical interface over VNC. though you can set up TLS
>> support for these connections.
>>
>
> Although i have used Xen to install an Ubuntu domU in hvm for example, when
> i moved the hvm to paravirt (since the 9.04 kernel supports it it was as
> simple as changing hvm to pygrub) it broke vnc.
>
> I ended up just setting up vnc on the domu, accepting connections only from
> the localhost, and connecting to it over an ssh tunnel, although I'd be
> curious to here if the guys on the list have a better solution.
>
> This was on Debian Lenny, btw, running the xen-hypervisor and xen
> linux-image from the debian stable repositories. Its too much of a hassle
> for me to compile a custom Xen kernel.
>
> Anyway, just my thoughts, hope it was some good food for thought.
>
> D.
>
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