Re: [Qemu-devel] live migration between different qemu versions

[Alexey]

Hello,

On 2016-01-16 02:24, Eric Blake wrote:
> On 01/12/2016 05:11 AM, Dr. David Alan Gilbert wrote:
>
> > > Tell me please right way to append zeros to "BIOS (ia32) ROM Ext. 
> > > (137*512)"
> > > file?
> >
> > I'd use dd; something like:
> >   dd if=/dev/zero bs=1 count=18944 >> theromfile
> > I think that should do it (203264-184320=18944)
>
> Or simpler:
>
> truncate --size=203264 theromfile
It's great! I have successfully did migration of VM from qemu 2.3.0 to 
qemu 2.5.0.

But when I try migrate to another side I got error:
qemu-system-x86_64: error while loading state for instance 0x0 of device 
'fw_cfg'
qemu-system-x86_64: load of migration failed: No such file or directory

Is it possible to do this migration?

Regards,
Alexey Mochkin.