As outlined by Steve in comment #7, the fix for this is in the cloud image building tools to add:
DEBIAN_FRONTEND=noninteractive dpkg-reconfigure grub-pc
A suitable validation of this is to run a instance pre-grub2 update, run this command, then upgrade. If it doesn't prompt, then we should have a suitable resolution.
However, this resolution will not resolve currently deployed AMI's before this is resolved, only latest builds. ~smoser is assigned to land this fix in the build tools for newer AMI's.
As outlined by Steve in comment #7, the fix for this is in the cloud image building tools to add: FRONTEND= noninteractive dpkg-reconfigure grub-pc
DEBIAN_
A suitable validation of this is to run a instance pre-grub2 update, run this command, then upgrade. If it doesn't prompt, then we should have a suitable resolution.
However, this resolution will not resolve currently deployed AMI's before this is resolved, only latest builds. ~smoser is assigned to land this fix in the build tools for newer AMI's.