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KVM Command

The command I used to create virtual machine

Enter KVM GUI

virt-manager

Enter command interface

virtsh

Quit command interface

quit

Start virtual machine

virsh start host-name & start host-name

eg: if the host-name is control-1 and you are in normal shell command interface, use command : virsh start control-1

if the host-name is control-1 and you are in KVM command interface, use command : start control-1

Stop virtual machine

virsh stop host-name & virsh stop host-name

eg: if the host-name is control-1 and you are in normal shell command interface, use command : virsh shutdown control-1

if the host-name is control-1 and you are in KVM command interface, use command : shutdown control-1

Make a snapshot of a virtual machine

snapshot-create-as domain-name create-snapshot-name

Before execute this command,Please make sure you have shutdown the virtual machine, if you haven’t shutdown this machine,

the created snapshot’s status is running.

the domain-name is the host name of your virtual machine, and the create-snapshot-name is the name your given to the created snapshot.

See a KVM’s virtual machine list

virsh list & list

the list show all the domain of virtual machine.

See virtual machine’s snapshot

virsh snapshot-list host-name & snapshot-list host-name

Delete a snapshot of a virtual machine

virsh snapshot-delete host-name snapshot-name & snapshot-delete host-name snapshot-name

The host-name is the machine’s domain name ,you can ssh this machine and click shell command hostname

to see the domain name.The snapshot-name is the machine’s snapshot name if you have created the snapshot.

If you are in normal shell environment, use virsh snapshot-delete host-name snapshot-name

If you are in virsh shell environment,use snapshot-delete host-name snapshot-name

Revert a snapshot to a machine

virsh snapshot-revert host-name snapshot-name & snapshot-revert host-name snapshot-name

Undefin a virt machine

virsh undefine host-name & undefin host-name