# update a para-virtualization VM to full-virtualization VM.

**URL:** <https://forums.suse.com/t/update-a-para-virtualization-vm-to-full-virtualization-vm/23357>\
**Category:** SLES High Availability Extension\
**Created:** [November 29, 2012, 12:00pm UTC](https://forums.suse.com/t/update-a-para-virtualization-vm-to-full-virtualization-vm/23357 "2012-11-29T12:00:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![echejin](https://avatars.discourse-cdn.com/v4/letter/e/8edcca/32.png) [@echejin](https://forums.suse.com/u/echejin)\
**Post date:** [November 29, 2012, 12:00pm UTC](https://forums.suse.com/t/update-a-para-virtualization-vm-to-full-virtualization-vm/23357/1 "2012-11-29T12:00:03Z")

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Hi.  
I use suse linux 11 SP2 + Xen4.1 + HA to create a para-virtualisation VM. VM OS is suse linux SP2. the kenel is vmlinuz-3.0.13-0.27-xen. then i change this VM from para-virtualisation VM to full-virtualization VM. I do below steps.

1. install a new kernel with the suse linux SP2 CD by YST. new kernel is vmlinuz-3.0.13-0.27-default. /boot/grub/menu.lst is update accordingly.  
2)chage the /etc/fstab file. update all fields with xvda to hda. same thing for the xvdb …  
3)in Dom0. change the VM startup config files. from  
[COLOR="#FF0000"]builder=“linux”  
bootloader="/usr/bin/pygrub"  
bootargs=""  
extra=""[/COLOR]  
to  
[COLOR="#FF0000"]builder=“hvm”  
device\_model="/usr/lib/xen/bin/qemu-dm"  
kernel="/usr/lib/xen/boot/hvmloader"[/COLOR]  
also change all xvdN to hdN.

then startup the vm using xm create .

VM startup successfully. I check the kernel is changed to vmlinuz-3.0.13-0.27-default.

is this method correct? did i missed something?  
is there any potential issues to running the legacy software already installed?

Thanks.

Jing Chen

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**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\
**Post date:** [November 29, 2012, 6:30pm UTC](https://forums.suse.com/t/update-a-para-virtualization-vm-to-full-virtualization-vm/23357/2 "2012-11-29T18:30:03Z")

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On Thu, 29 Nov 2012 10:04:02 +0000, echejin wrote:  
[color=blue]

> is this method correct? did i missed something? is there any potential  
> issues to running the legacy software already installed?[/color]

Are you having a problem? How does this relate to the High Availability  
Extension?

## –

David Gersic [dgersic\_@\_niu.edu](mailto:dgersic_@_niu.edu)  
Knowledge Partner [http://forums.netiq.com](http://forums.netiq.com)

Please post questions in the forums. No support provided via email.

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<div class="post-metadata">

**Author:** ![echejin](https://avatars.discourse-cdn.com/v4/letter/e/8edcca/32.png) [@echejin](https://forums.suse.com/u/echejin)\
**Post date:** [December 4, 2012, 3:43am UTC](https://forums.suse.com/t/update-a-para-virtualization-vm-to-full-virtualization-vm/23357/3 "2012-12-04T03:43:00Z")

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[QUOTE=David Gersic;10425]On Thu, 29 Nov 2012 10:04:02 +0000, echejin wrote:  
[color=blue]

> is this method correct? did i missed something? is there any potential  
> issues to running the legacy software already installed?[/color]

Are you having a problem? How does this relate to the High Availability

## –

David Gersic [dgersic\_@\_niu.edu](mailto:dgersic_@_niu.edu)  
Knowledge Partner [http://forums.netiq.com](http://forums.netiq.com)

Please post questions in the forums. No support provided via email.[/QUOTE]  
’

I am doing regression test and i just want to know from the expert viewpoint if there is potential  
problem. we use the suse HA extension for the HA. i create two VMs for HA backup and they are para-visualisation.