{
  "boot_command_prefix": "<esc><wait><esc><wait><enter><wait>/install/vmlinuz auto console-setup/ask_detect=false console-setup/layoutcode=us console-setup/modelcode=pc105 debconf/frontend=noninteractive debian-installer=en_US fb=false initrd=/install/initrd.gz kbd-chooser/method=us keyboard-configuration/layout=USA keyboard-configuration/variant=USA locale=en_US netcfg/get_domain=local netcfg/get_hostname=localhost grub-installer/bootdev=/dev/sda preseed/url=",
  "boot_command_suffix": "/18.04/preseed.cfg -- <enter>",
  "build_name": "ubuntu-1804",
  "distro_name": "ubuntu",
  "guest_os_type": "ubuntu-64",
  "iso_checksum": "f5cbb8104348f0097a8e513b10173a07dbc6684595e331cb06f93f385d0aecf6",
  "iso_checksum_type": "sha256",
  "iso_url": "http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04.6-server-amd64.iso",
  "os_display_name": "Ubuntu 18.04",
  "shutdown_command": "shutdown -P now"
}