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In order to upgrade our EC2 instances (or downgrade for that matter) I use the AWS console to "Create Image (EBS AMI)" and then I launch the AMI once it has been created. Is there a way that would make it possible for me to upgrade/downgrade without having to create the AMI? Thanks for your help.
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You can check the API tools command ec2-modify-instance-attribute. You need to stop the instance, apply the command and start it again. I've done this with my Linux AMI's. :) | |||
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The only way to persist changes is via EBS. AMIs are read-only, though you can always use one AMI to create another. | |||
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