Am 29.05.2012 00:03, schrieb Witold Baryluk:
On 05-28 20:47, Lukas Laukamp wrote:
Am 28.05.2012 20:02, schrieb Carsten Heesch:
Hi Lukas,
[...] I don't know whether there is support for Xen Dom0 on FreeBSD.
Unfortunately there isn't.
I read that NetBSD support Xen Dom0 [...]
I haven't tried myself, but apparently NetBSD works rather well as Dom0. That
has long been on my list of things to test, though :)
Not sure if you are aware of it, but in order to run FreeBSD as DomU, you don't
need FreeBSD or NetBSD as Dom0. That works just as well on your Debian Dom0.
(With FreeBSD's known limitations as DomU, namely memory and architecture
depending on PV or HVM virtualisation)
Cheers
C.
Hello Carsten,
thanks for your fast answer. That FreeBSD as DomU runs on Linux I
know. So I only think that it is a bit tricky to build a PV DomU of
FreeBSD because the kernel must be modified. I wan't to have another
system like Linux as the host because I think that the BSDs are
better in the stability and a few other points. I read in the
english Wikipedia article about Xen that there is support for
NetBSD, OpenBSD and OpenSolaris
(http://en.wikipedia.org/wiki/Xen#Host:_Unix-like_systems).
BTW. I read yeasterday that Windows Server 2008 with Hyper-V is able to
run XEN PV domU Linux on it. It probably is also able to run other Xen
domU guests, but probably nobody was trying to do so. I do not know
details, but it was what I read about Hyper-V hypervisor on Wikipedia.
In fact it looks like independent implementation of Xen compatible
hypervisor (it uses same hypercall api, but I do not know with which
version of Xen it is compatible) with Windows as dom0.
Not that anybody would want to run it, but just saying.
Hello Witold,
Hyper-V can do that because Microsoft has co-operation contracts with
Citrix who is one of the primary maintainers of Xen. So the try to build
compatibility between Xen and Hyper-V. Personaly I wouldn't use Hyper-V
because it's not that great like for example VMWares vSphere.
But for the productive working I use Xen and KVM at the moment. And as I
started to think to change to BSD I first looked which virtualization
technologies are available on BSD. I thought that the best solution
would be Xen because KVM don't is available for BSD and other solutions
like QEmu, VirtualBox or the BSD Hypervisor BHyVe are very great for
testing and home and so I would say the development command and control
center but not for server virtualization or other things which provides
services which are needed for productive use.
When I look at the wikis and read about the support for Xen on other
unix like systems I only see NetBSD or Solaris (and it's forks) for a
realy good Dom0.
So does someone can explain the differences between FreeBSD and NetBSD?
I see not so much without looking for the supported hardware platforms.
The BSD with the most differences I think is OpenBSD.
And the other thing is that I never worked with Solaris, but it seems
that they have great Xen support. So I don't know whether it would be a
good choice. I think that I will have much to learn to work good with a
BSD but I hope it's possible for me.
best regards
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