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Re: [Xen-users] Which kernal am I using anyway?

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Gino LV. Ledesma" <gledesma@xxxxxxxxx>
  • Date: Tue, 30 Aug 2005 15:50:53 -0700
  • Delivery-date: Tue, 30 Aug 2005 22:48:59 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

The actual kernel resides in dom0. It is in dom0, after all, that you
start/stop domain instances. To update your kernel, simply change the
kernel= param in your config file.

One way of looking at it is that all "xen stuff" (hypervisor, tools,
dom0 and domU kernels) will reside in dom0, and you can leave all
domUs as-is without having to worry about them being "xen" or whatnot.
That way, if you decide to migrate a xen host to a real machine, the
changes are minimal if any at all.

I've packaged xen into an RPM as follows: xen (hypervisor, tools,
docs, etc), xen-kernel-dom0, and xen-kernel-domU, all being used
within dom0. :-)

- gino ledesma

On 8/30/05, Anders Nygren <anders.nygren@xxxxxxxxx> wrote:
> Hi
> I have started playing with Xen on SuSE 9.3 and just discovered
> something that I can not understand.
> In the config file for a virtual machine there are two parameters
> kernel = path to kernel to load
> root    = root device
> I assumed that Xen would look for the kernel on the root device, but
> instead it just uses the path given in the kernel parameter in the
> domain0 directory tree.
> So, am I doing something wrong, or is it supposed to work this way?
> If it is supposed to work this way, does anyone have any suggestions
> on how to do updates of the kernel in domainN>0.
> If I do a yast update in domN>0 the kernel will not be updated since
> it is actually stored in dom0.
> /Anders Nygren
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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