AWS SDK for .NET Documentation
NoReboot Property
AmazonAmazon.EC2.ModelCreateImageRequestNoReboot Did this page help you?   Yes   No    Tell us about it...
Whether Amazon EC2 should not shut down an instance before image creation.
Declaration Syntax
C#
public bool NoReboot { get; set; }
Remarks
By default this property is set to false, which means Amazon EC2 attempts to cleanly shut down the instance before image creation and reboots the instance afterwards. When set to true, Amazon EC2 does not shut down the instance before creating the image. When this option is used, file system integrity on the created image cannot be guaranteed. Default is FALSE.

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)