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Re: [Xen-users] xen 3.1 and 32bit guests in 64bit dom0

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Lorin <lorins@xxxxxxxxx>
  • Date: Thu, 26 Jul 2007 16:38:40 +0300
  • Delivery-date: Thu, 26 Jul 2007 06:36:22 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

On 7/26/07, Martin Goldstone <m.j.goldstone@xxxxxxxxxxxxxxx> wrote:
> Hash: SHA1
> PV is faster than HVM, but HVM allows unmodified guest OSs, so it's not
> a clear cut case for which is better.  PV has better performance, but if
> you have to use a non-Xenified kernel, then I guess your hands are tied
> (although apparently there is now some domU support in the standard
> kernel according to kerneltrap.org).
> As you've got hardware support, the only thing you need is to set the
> config file and disk image up properly.  HVM domains boot just like
> regular systems (they have a BIOS as well), and so require a boot loader
> in the disk image (I use an image for the entire disk, I don't know if
> you can split it up into different files for different partitions with
> HVM), along with the kernel etc, and in the config file for the domain
> you need to remove the initrd line, point the kernel line to the
> hvmloader, change the builder to hvm and add the device modeller etc.
> You can find an example in /etc/xen/xmexample.hvm in the standard Xen
> install, or you could use RedHat's virt-manager/virt-install to
> configure and install the domain.

All clear!
If i want to build an image out of a physical machine is there a
specific tool besides dd or such ?
Any docs on building a HVM image from scratch or an already existing
(and running ) physical server ?


+ Lorin
+ Nosce te ciment.

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