Upgrading an Amazon EC2 instance?

How do I safely upgrade an Amazon EC2 instance from t1.micro to m1.large?

Follow the below mentioned steps:

  1. Stop the t1.micro instance.
  2. Go to Actions tab and click on “change instance type”.
  3. Select the instance type as m1.large.
  4. Go to Actions tab and start the instance.

Note: The above mentioned method has downtime.

If you do not want downtime, follow the steps below to launch a new instance of m1.large instance type:

  1. Create an AMI of the current instance.
  2. Next time, when you are launching an instance, you will find an option to launch it as m1.large instance at that point