For EC2, since you don't need core.img as I understand it, you should be able to preseed this:
grub-pc grub-pc/install_devices string grub-pc grub-pc/install_devices_empty boolean true -- grub-pc needs some help in uec instances https://bugs.launchpad.net/bugs/623609 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs