Re: [Xen-users] kernel-2.6.39

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

On Thu, Jun 2, 2011 at 10:36 PM, Permjacov Evgeniy <permeakra@xxxxxxxxx> wrote:
> When I studied features lists and sources, I found, that 2.6.39 upstream
> kernel does not support xen block backend driver yet. However, vanilla
> 2.6.39 DOES start under xen-4.1 with several minor drawback (console
> does not work but Xserver does, network, sound and discs works properly,
> even nvidia binary drivers works well) and such system CAN start guests,
> BUT I cannot pass any device to guest system (no disks detected by
> debian installer).
>
> 1) Is there some workaround, i. e. is passing block device into VM still
> possible and how? May be I missed something...
> 2)If not, where I can take sources, based on most recent kernel? (I want
> to have access to some new kernel features). My box runs gentoo linux,
> so genkernel-compatible sources are preferable (i.e. ones that produce
> bzImage and are present in some overlay). xen-sources are too old, sorry.

There are some ways to approach this.

First approach, if you simply want virtualization and use it on a
PC/notebook, I actually recommend NOT to use Xen. Better use
virtualbox instead, as it is less invasive to the host OS.

Second approach, if you run it on a server and don't need Xen-specific
or newer features, usually using latest Centos5 + bundled Xen 3.x is
much easier to manage. Or even use Vmware ESXi.

Third approach, see
http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=summary .
When you say "too old" I don't know if you're talking about the old
2.6.18-based tree or the newer 2.6.32-pv_ops tree. If 2.6.32 can work,
this might be best for you as it has been considered stable enough.

Last approach, there was a post on xen-devel several days ago saying
that the block backend driver went in for Linux 3.0-rc1, so you might
want to try that. Or if you're feeling even more adventurous, see
http://git.kernel.org/?p=linux/kernel/git/konrad/xen.git

-- 
Fajar

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