Re: [Qemu-devel] live migration + licensing issue.

[Eduardo Otubo]

On Fri, Jul 11, 2014 at 1:12 PM, Markus Armbruster <address@hidden> wrote:
> [Top-quote moved to its rightful place; please do not top quote on
> technical lists]
>
> Anshul Makkar <address@hidden> writes:
>
>> On Wed, Jul 9, 2014 at 6:25 PM, Andreas Färber <address@hidden> wrote:
>>> Am 09.07.2014 13:09, schrieb Anshul Makkar:
>>>> Thanks. I got the point.
>>>
>>> And for the record, the point is that the machine version on the
>>> destination side needs to match the source side. So, if the default or
>>> "pc" alias is used in 1.0, which resolves to pc-1.0, then it needs to be
>>> pc-1.0, not pc-1.2. If an explicit machine name such as pc-0.15 was used
>>> then that exact machine must be used on the destination as well.
>
>> Hi Andreas,
>>
>> "the point is that the machine version on the destination side needs
>> to match the source side". I hope this is just to avoid the licensing
>> issue. Else, in all other circumstance, we can specify different pc
>> models while migrating from source to destination.
>
> You certainly can specify whatever machine type you want, but if you
> specify different machine types on source and target of a migration, all
> bets are off.
>
> It could succeed if the stars align the right way.  It could break
> obviously and immediately, leaving your machine running on the source.
> It could migrate your machine to the destination successfully, then blow
> up there right away, or some time later, taking down your machine.  It
> could migrate successfully, but silently corrupt data.
>
> Regardless of how it breaks, you get to keep the pieces.

What you're saying is that there's no way to migrate (live or offline)
from Qemu 1.0/1.2 to 2.0 in a *safe way* whatever OS I'm running on
it?

-- 
Eduardo Otubo
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