Simple JSON definition file for Packer.

freebsd91.json

{
  "builders": [
    {
      "type": "virtualbox",
      "vm_name": "freebsd-packer",
      "boot_wait": "10s",
      "disk_size": 10240,
      "guest_os_type": "FreeBSD_64",
      "iso_checksum": "f0a320fd52383c42649d48ea545915a9",
      "iso_checksum_type": "md5",
      "iso_url": "C:\\PATH_TO_ISO\\FreeBSD-9.1-RELEASE-amd64-disc1.iso",
      "ssh_username": "vagrant",
      "ssh_password": "vagrant",
      "ssh_port": 22,
      "ssh_wait_timeout": "10000s",
      "shutdown_command": "echo 'shutdown -p now'|su -",
      "guest_additions_path": "VBoxGuestAdditions_{{.Version}}.iso",
      "virtualbox_version_file": ".vbox_version",
      "vboxmanage": [
        [
          "modifyvm",
          "{{.Name}}",
          "--memory",
          "512"
        ],
        [
          "modifyvm",
          "{{.Name}}",
          "--cpus",
          "1"
        ]
      ],
      "http_directory": ".",
      "boot_command": [
        "<esc>",
        "load geom_mbr",
        "<enter>",
        "load zfs",
        "<enter>",
        "boot -s",
        "<enter>",
        "<wait><wait><wait><wait><wait><wait><wait><wait><wait><wait>",
        "/bin/sh<enter>",
        "mdmfs -s 100m md1 /tmp<enter>",
        "dhclient -l /tmp/dhclient.lease.em0 em0<enter>",
        "<wait><wait><wait>",
        "echo 'sleeping for 10 seconds, then running install script.'<enter>",
        "sleep 10 ; fetch -o /tmp/install.sh http://{{ .HTTPIP }}:{{ .HTTPPort }}/install.sh && chmod +x /tmp/install.sh && /tmp/install.sh {{.Name}}<enter>",
        "<wait10>"
      ]
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "script": "postinstall.sh",
      "override": {
        "virtualbox": {
          "execute_command": "cat '{{.Path}}' | su -"
        }
      }
    }
  ],
  "post-processors": [
    {
      "type": "vagrant",
      "output": "freebsd-packer.box"
    }
  ]
}