Libguestfs - Dec 2018 - Re: why virt-v2v in-place option not support in centos 7?

Hi All,

As the in-place help said,

   --in-place
Do not create an output virtual machine in the target hypervisor. Instead,
adjust the guest OS in the source VM to run in the input hypervisor.

This mode is meant for integration with other toolsets, which take the
responsibility of converting the VM configuration, providing for rollback in
case of errors, transforming the storage, etc.



I want to do v2v modifications in the source disk image, but the v2v give the
error:
virt-v2v -v -x -i disk /dev/vdh --in-place
virt-v2v: error: --in-place cannot be used in RHEL 7

could any one give me some help?
why —in-place option disabled in RHEL7, is there a older version enabled this
feture?

Thanks very much for help!


Best Wishes.

On Mon, Dec 17, 2018 at 07:47:45PM +0800, Zhang Huan
wrote:
> Hi All,
> 
> As the in-place help said,
> 
>    --in-place
> Do not create an output virtual machine in the target hypervisor. Instead,
adjust the guest OS in the source VM to run in the input hypervisor.
> 
> This mode is meant for integration with other toolsets, which take the
responsibility of converting the VM configuration, providing for rollback in
case of errors, transforming the storage, etc.
> 
> 
> 
> I want to do v2v modifications in the source disk image, but the v2v give
the error:
> virt-v2v -v -x -i disk /dev/vdh --in-place
> virt-v2v: error: --in-place cannot be used in RHEL 7
> 
> could any one give me some help?
> why —in-place option disabled in RHEL7, is there a older version enabled
this feture?
It's because we explictly disable it in RHEL 7 because we don't want
to support it for Red Hat's customers.

You can see the patches that we add on top of upstream libguestfs
here:

https://github.com/libguestfs/libguestfs/commits/rhel-7.7

The patch in question is:

https://github.com/libguestfs/libguestfs/commit/fb3e89b0fb2d0de3c12a668c00d07c5cfcac9ec0

If you want to use this feature, you'll either have to use Fedora or
another non-CentOS distribution, or compile libguestfs yourself from
source, or take the CentOS SRPM, comment out the patch, and rebuild
it.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v

Thanks a lot for reply, this is really helpful to me.
> 
> On Mon, Dec 17, 2018 at 07:47:45PM +0800, Zhang Huan wrote:
>> Hi All,
>> 
>> As the in-place help said,
>> 
>>   --in-place
>> Do not create an output virtual machine in the target hypervisor.
Instead, adjust the guest OS in the source VM to run in the input hypervisor.
>> 
>> This mode is meant for integration with other toolsets, which take the
responsibility of converting the VM configuration, providing for rollback in
case of errors, transforming the storage, etc.
>> 
>> 
>> 
>> I want to do v2v modifications in the source disk image, but the v2v
give the error:
>> virt-v2v -v -x -i disk /dev/vdh --in-place
>> virt-v2v: error: --in-place cannot be used in RHEL 7
>> 
>> could any one give me some help?
>> why —in-place option disabled in RHEL7, is there a older version
enabled this feture?
> 
> It's because we explictly disable it in RHEL 7 because we don't
want
> to support it for Red Hat's customers.
> 
> You can see the patches that we add on top of upstream libguestfs
> here:
> 
> https://github.com/libguestfs/libguestfs/commits/rhel-7.7
> 
> The patch in question is:
> 
>
https://github.com/libguestfs/libguestfs/commit/fb3e89b0fb2d0de3c12a668c00d07c5cfcac9ec0
> 
> If you want to use this feature, you'll either have to use Fedora or
> another non-CentOS distribution, or compile libguestfs yourself from
> source, or take the CentOS SRPM, comment out the patch, and rebuild
> it.
> 
> Rich.
> 
> -- 
> Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
> Read my programming and virtualization blog: http://rwmj.wordpress.com
> virt-p2v converts physical machines to virtual machines.  Boot with a
> live CD or over the network (PXE) and turn machines into KVM guests.
> http://libguestfs.org/virt-v2v
>