Re: [Xen-users] K/Ubuntu 11.04 and XEN 4.1 - Possible?

["Fajar A. Nugraha" <list@xxxxxxxxx>]

On Thu, May 19, 2011 at 11:41 AM, Outback Dingo <outbackdingo@xxxxxxxxx> wrote:
>
>
> On Thu, May 19, 2011 at 12:30 AM, Fajar A. Nugraha <list@xxxxxxxxx> wrote:
>>
>> On Thu, May 19, 2011 at 11:23 AM, Outback Dingo <outbackdingo@xxxxxxxxx> 
>> wrote:
>>>
>>> Ok running Kubuntu 11.04, is it possible to get XEN 4.1 installed to 
>>> virtual a laptop running Kubuntu ?
>>
>> The generic answer would be "yes, if you compile xen hypervisor, tools, and 
>> dom0 kernel from source".
>> AFAIK there's no packaged version (yet) for either Debian or Ubuntu with 
>> complete features (e.g. no tap: support in Debian's dom0 kernel)
>
> Well there is this... 
>   https://launchpad.net/~dokter/+archive/xen-4.1/+build/2492795


Worth to try. Let us know how it goes.
Although judging from package names and sizes, it still doesn't
include dom0 kernel yet, so you have to compile it manually.

>>
>>
>>>
>>> I seriously dont want to use Vbox or KVM
>>
>> Why?
>
> Vbox and FreeBSD CURRENT dont play well, and i run XEN / XCP in the lab no 
> sense in using multiple technologies
>

AFAIK when you enable VT and use general hardware (e.g. PIIX IDE
controller) in virtualbox, it should be similar to XEN HVM (when
running without PV drivers) or KVM, so you might be able to reuse the
same guest image for any virtualization technology.

>>
>>
>>>
>>> , and need to run other OS for development, so XEN virtualization
>>> on a 8 core laptop with 16 gig memory seem the best bet for mobile 
>>> development
>>
>> Since it's a laptop, I actually suggest you just use 64bit OS and 
>> virtualbox. Saves lots of headache.
>
> Currently running 64bit Kubuntu, just need XEN on it

Usually the hardest part is dom0 kernel. Here's the kernel config I
use for RHEL5 dom0, you might be able to reuse some part of it:
http://pastebin.com/vvqmb5sN ;(except CONFIG_SYSFS_DEPRECATED and
CONFIG_SYSFS_DEPRECATED_V2. It's only needed for older userland like
RHEL5).

The wiki is somewhat outdated, but you might be able to find some
useful info there: http://wiki.xensource.com/xenwiki/XenParavirtOps

Judging from other posts on this list, the usual question that comes
afterward is "how to enable hardware acceleration for graphic card
(e.g. nvidia)" or "how to passthrough the graphic card to a Windows
domU". Both of which are problematic right now. That's why I suggested
you use Virtualbox.

In any case, good luck, let us know how it goes.

--
Fajar

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