name : create-replace-root-volume-task.rst **Example 1: To restore a root volume to its initial launch state** The following ``create-replace-root-volume-task`` example restores the root volume of instance i-0123456789abcdefa to its initial launch state. :: aws ec2 create-replace-root-volume-task \ --instance-id i-0123456789abcdefa Output:: { "ReplaceRootVolumeTask": { "InstanceId": "i-0123456789abcdefa", "ReplaceRootVolumeTaskId": "replacevol-0111122223333abcd", "TaskState": "pending", "StartTime": "2022-03-14T15:06:38Z", "Tags": [] } } **Example 2: To restore a root volume to a specific snapshot** The following ``create-replace-root-volume-task`` example restores the root volume of instance i-0123456789abcdefa to snapshot snap-0abcdef1234567890. :: aws ec2 create-replace-root-volume-task \ --instance-id i-0123456789abcdefa \ --snapshot-id snap-0abcdef1234567890 Output:: { "ReplaceRootVolumeTask": { "InstanceId": "i-0123456789abcdefa", "ReplaceRootVolumeTaskId": "replacevol-0555566667777abcd", "TaskState": "pending", "StartTime": "2022-03-14T15:16:28Z", "Tags": [] } } For more information, see `Replace a root volume <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/replace-root.html>`__ in the *Amazon EC2 User Guide*.