[libvirt-users] Re: qemu-img convert to "sparse" LV
The 28/06/13, Edoardo Comar wrote:
>
> I think a good way to get that is to shrink the filesystem of the
> original disk, shrink the disk itself and convert the file-based image
> to the LV like you do.
>
> Once done, you can extend the LV and the filesystem back to what it was
> before the process if needed.
>
> Other than that, I don't know a way to get what you want with the
> current tools.
Thanks Nicholas, the above seems to have worked.
Quite a few steps, though - so prone to error ...
Right. I would let the VMs run some times before deleting the image
file. For more sanity, you can try to get 100% filesystem usage to check
that allocation works for the whole filesystem space.
When you say 'tools' I think you mean that qemu-img cannot at
the moment
support conversion to thin LVs.
I meant tools in general: libvirt, qemu, dd, etc.
--
Nicolas Sebrecht