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Re: [Xen-users] Windows 7 as guest on a physikal disk

  • To: xen-users@xxxxxxxxxxxxx
  • From: Alexandre Kouznetsov <alk@xxxxxxxxxx>
  • Date: Tue, 10 Apr 2012 10:47:31 -0500
  • Delivery-date: Tue, 10 Apr 2012 15:48:27 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>


El 10/04/12 08:52, Jens Krause escribió:
Thanks Joseph, I am one step further. The setting

disk = [ 'phy:/dev/sda,hda,w' ]

will boot from the disk. Since there is grub, I can see
the grub menu in my vncviewer and I can choose Windows
(which was installed without xen). That works and Windows
is there.

But I would prefer to use

disk = [ 'phy:/dev/sda1,hda,w' ]

as you suggested (using partition sda1 and not whole disk sda)

Windows can't work with unpartitioned block devices. When you give it a sda as hda, it will read the partition table, pick up it's system partition and boot from it. When you give it sda1 as hda, it will expect to read a partition table, fail, and give up.

The setup you are describing is possible, but it will render your Windows installation unusable outside of hypervisor. All you have to do is create a partition table within a partition. You can try to move your existing Windows installation to a partition with something like
dd if=/dev/sda of=somefile
dd if=somefile of=/dev/sda1
...but that is tricky: the whole sda will not fit within sda1 by at lest some hundreds of bytes, so you will have to shrink it somehow.

The whole thing is that:
- Windows unusable outside of hypervisor (but you probably could switch hypervisors) - it would be easer to make a clean install (Windows spirit is in that phrase)

Oh, read your original message, you don't need to run windows outside of Xen. My advice, reinstall. Why on a partition? LVM is much more flexible.

Alexandre Kouznetsov

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