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I found the exact same solution, couldn't find any cleaner way for my
migration problem.


2013/12/16 Samuel Winchenbach <swinchen at gmail.com>

> Hi All,
>
> I have tried everything I can think of to migrate a VM to a node running a
> newer processor.  I have tried setting "libvirt_cpu_mode=none" on both
> hosts, I have tried creating a custom CPU, etc.  This is what I found
> worked:  Stop the instance, change "host", "node" and "launched_on" to the
> new hostname in the instances table in the nova database, then hard reboot
> the instance.  Something like this:
>
> ~# nova stop <UUID>
> ~# mysql -u root -p
> mysql> use nova;
> mysql> update instances set host='<NEWHOST>', node='<NEWHOST>',
> launched_on='<NEWHOST>' where uuid='<UUID>';
> mysql> exit
> ~# nova reboot --hard <UUID>
>
>
>
> So I have two questions about doing it this way:
> 1) Is there anything else in the database I need to change?
> 2) Are there any files I need to delete from the old host other than the
> instance XML file in  /etc/libvirt/qemu?
>
>
> Thanks!
> Sam
>
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>
>


-- 
Pavlik Salles Juan José
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