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2015 May 19
2
Pivot without copy
Hi,
Is it possible to "pivot" to a new image without doing blockcopy or
blockpull? I know how to use snapshots and blockpull to create a new image
and pivot to using it live, but what I would like to do is to have a VM
switch from using imageA.qcow2 to image2.qcow2 while running. I don't see
why this wouldn't be possible since some of the existing libvirt tools can
do this when they are done. I would love to see an example from a bash
terminal as well as how it would be done using the python API.
Regards,
Mathew
2015 May 19
0
Re: Pivot without copy
...ime, then you can save the guest state,
modify the save file to edit in the updated file name, then restore from
the saved state.
> I know how to use snapshots and blockpull to create a new image
> and pivot to using it live, but what I would like to do is to have a VM
> switch from using imageA.qcow2 to image2.qcow2 while running. I don't see
> why this wouldn't be possible since some of the existing libvirt tools can
> do this when they are done. I would love to see an example from a bash
> terminal as well as how it would be done using the python API.
blockpull is not...
2015 May 19
3
Re: Pivot without copy
...est state,
> modify the save file to edit in the updated file name, then restore from
> the saved state.
>
> > I know how to use snapshots and blockpull to create a new image
> > and pivot to using it live, but what I would like to do is to have a VM
> > switch from using imageA.qcow2 to image2.qcow2 while running. I don't see
> > why this wouldn't be possible since some of the existing libvirt tools
> can
> > do this when they are done. I would love to see an example from a bash
> > terminal as well as how it would be done using the python API...
2015 May 19
0
Re: Pivot without copy
...fy the save file to edit in the updated file name, then restore from
>> the saved state.
>>
>> > I know how to use snapshots and blockpull to create a new image
>> > and pivot to using it live, but what I would like to do is to have a VM
>> > switch from using imageA.qcow2 to image2.qcow2 while running. I don't
>> see
>> > why this wouldn't be possible since some of the existing libvirt tools
>> can
>> > do this when they are done. I would love to see an example from a bash
>> > terminal as well as how it would be...