Re: [libvirt] [Qemu-devel] Question regarding Snapshots
On Mon, Feb 27, 2017 at 01:33:56PM +0100, Kashyap Chamarthy wrote:
[...]
> > Can you make a snapshot, then go back to the base and
ignore that snapshot
> > like a closed branch, make another snapshot, and then go back and forth
> > from each to each?
If you edit the '--disk' element as above and point to the right
'snapshot', you should be able to switch between several of them.
[...]
And conveniently, you can tell libvirt to not track the metadata:
$ virsh snapshot-create-as --domain vm1 guest-state1 \
--diskspec vda,file=/export/overlay1.qcow2 \
--disk-only --atomic --no-metadata
This way, libvirt will not track 'overlay1.qcow2'. But if you do need
it, as you know, just update the
Err, unfinished sentence there. Meant to write: just update the
'source file' attribute in the guest XML, pointing to the said disk.
For the long answer to the complications involved in reverting to
external snapshots, refer this (long read):
https://wiki.libvirt.org/page/I_created_an_external_snapshot,_but_libvirt...
[...]
--
/kashyap