Better support for HVM instances. Now the NixOS images can

AWS: aws_instance - Terraform by HashiCorp NOTE: Currently, changes to the ebs_block_device configuration of existing resources cannot be automatically detected by Terraform. To manage changes and attachments of an EBS block to an instance, use the aws_ebs_volume and aws_volume_attachment resources instead. If you use ebs_block_device on an aws_instance, Terraform will assume management over the full set of non … Xen Project Beginners Guide - Xen Nov 05, 2018

Amazon instance-store - Builders | Packer by HashiCorp

be used on HVM instances without needing nixops. Previously the grub setup was incorrect, so a plain 'nixos-rebuild switch' and a reboot would result in a broken system. Also added growing of the partition of the root disk in the initrd, so you can run resize2fs after initial boot, without needing an extra reboot. AWS nudging users toward HVM instance type Aug 28, 2015

Migrating Amazon Linux AMI PV (Paravirtual) EC2 Instance

Sep 27, 2014 Amazon EC2: how to convert an existing PV AMI to HVM Any instance class should work; however, device name may be different, see notes, below I used Bionic Ubuntu 18.04 HVM AMI ID ami-0a313d6098716f372 and instance class C5.XLARGE; Attach PVM01 root partition (new volume from previous step) to new HVM01 /dev/sdf. NOTE: Older instance classes such as C3 will translate the volume name to /dev/xvdf Steps to convert UBUNTU-BASED PV instances to HVM