Re: [Qemu-devel] qemu-img convert of a backing qcow2 snapshot (THANKS)

[Christopher Pereira]

On 12-Jul-16 10:07, Eric Blake wrote:
> On 07/11/2016 09:42 PM, Christopher Pereira wrote:
> > Hi,
> >
> > Let's say we have this chain:
> >
> >      base <--- sn1 <--- sn2 <--- active
> >
> > Can we shutdown the VM and "qemu-img convert sn2 -O qcow2 sn2_new" and
> > rebase active to sn2_new like this:
> >
> >      sn2_new <--- active
> >
> > ?
> Yes. As long as the guest-visible data in 'base <- sn1 <- sn2' is
> identical to the guest-visible data in 'sn2_new', then it doesn't matter
> which of the two files is used as the backing file for 'active'.
Nice! Thanks Eric for confirming and for all your brilliant work.