Backup and restoration of KVM Virtual Machine II Snapshot

Assume that you have installed and run the VM1 VM.

Create an XML file vmdesksnapshot.xml with the following content:

<domainsnapshot>   <name>vm1_snapshot</name>   <description>Ubuntu 12.10 AMD64 server</description></domainsnapshot>

Run the following command to create the snapshot of VM1:

virsh snapshot-create vm1 ./vm1_snapshot.xmlDomain snapshot vm1_snapshot created from './vm1_snapshot.xml'

Check the snapshot of VM1.

virsh snapshot-list vm1 Name                 Creation Time             State------------------------------------------------------------ vm1_snapshot         2012-11-14 14:46:44 +0800 running

Now, log on to the running VM1 and add a file under/root /.

Touch XY

Well, use vm1_snapshot to replace the current VM1 (or restore VM1 to the State saved by vm1_snapshot)

virsh snapshot-revert vm1 vm1_snapshot

Log on to VM1 again, and the XY file does not exist under/root. Restored successfully.

If you do not need this vm1_snapshot, you can use the following command to delete it:

virsh snapshot-delete vm1 vm1_snapshotDomain snapshot vm1_snapshot deletedroot@host2:~/kvm# virsh snapshot-list vm1 Name                 Creation Time             State------------------------------------------------------------