I’m experiencing boot failure for Fedora 37 randomly at AWS EC2. I've opened an AWS support case (ID 12834953551) but they think the Fedora cloud base AMIs have a problem. AWS support could be able to reproduce the issue at their side. We noticed this issue happens on AWS Nitro hypervisor (impacts many types) like c5n.2xlarge. if you want to reproduce it, you can try the below AMI on an instance: c5n.2xlarge and reboot the instance sequentially through SSH. you should see the boot failure after 1-5 times.
ami-018f0c54f26a110d8 Fedora-Cloud-Base-37-1.4.x86_64-hvm-us-west-2-gp2-0

Also I couldn’t grab anything related to boot failure through EC2 serial console because when I try serial console, issue doesn’t happen anymore. I could not see any usable log at instance “get system log” too.
Any thoughts?