I need to shrink a Server 2008 m1.large instance to an m1.small instance on EC2. I know that the large is a 64-bit OS while the small is 32-bit. Both are EBS volumes. My questions are as follows:
Can I simply make an AMI or take a snapshot of the large instances and create small instances from the AMI or snapshots? Or do I need to rebuild from scratch and with a 32-bit AMI and move all of my software over manually?
Is there anything I need to watch out for in terms of the EBS volume being deleted when the instance is terminated? Or is it enough to simply create a snapshot of the instance to act as a backup to create future instances from?