Believed to be an improperly configured boot mode. Engineer was able to replicate in m7i.large, which supports both UEFI and Legacy BIOS. AMI boots successfully in c3.xlarge, which only support Legacy BIOS. Confirming the suspicion that the boot mode has been erroneously set.

What were you trying to do that didn't work?

Attempting to launch ami-01c332cea683af0a1 in us-west-2

What is the impact of this issue to you?

The AMI is unbootable

Please provide the package NVR for which the bug is seen:

How reproducible is this bug?:

Happens every time

Steps to reproduce

1. Launch ami-01c332cea683af0a1 in us-west-2

Expected results

AMI is bootable

Actual results

AMI is unbootable