Which unix flavor is the standard amazon EC2 linux image based on?

Question

I have an EC2 instance where I have bash & php 5.3 scripts running together (install / copy done by bash, web app via php of course), I need to port these files to a classic dedicated server.

My goal is to choose the "closest OS" to the standard amazon EC2 linux distribution, you know to minimize the work done in order to get these scripts to work on the dedicated box.

So, which unix flavor is the standard amazon EC2 linux image based on?

I recall reading somewhere that amazon linux AMI is based on redhat but I'm can't find the link anymore, amazon doesn't say anything about this on their website, I tried to google it but couldn't find anything useful

Answer 1

It is based on redhat, but at this point its taken its own path. While you can use redhat/centos repositories, you may from time to time, run into dependency conflicts.