Editing snapshots

In this recipe, we are going to edit the XML definition of an existing snapshot and examine the changes.

Getting ready

For this recipe, we are going to need the following:

• A libvirt host with the QEMU toolset
• The snapshots we created in the Creating snapshots recipe

How to do it...

To edit a snapshot, run the following:

1. List all available snapshots for the specified KVM instance:

root@kvm:~# virsh snapshot-list kvm1
 Name                Creation Time              State
------------------------------------------------------------
 1492797458          2017-04-21 17:57:38 +0000  running
 kvm1_ext_snapshot   2017-04-21 18:08:49 +0000  disk-snapshot

root@kvm:~#

2. Edit the disk snapshot and change its name and description:

root@kvm:~# virsh snapshot-edit kvm1 --snapshotname kvm1_ext_snapshot --rename
<domainsnapshot>
 <name>kvm1_ext_snapshot_renamed</name>
 <description>Disk only external snapshot for kvm1</description>
 ...
root@kvm:~#

3. List the snapshots...