arch_rice/archinstall/disk.json

{
  "/dev/vda": {
    "partitions": [
      {
        "boot": true,
        "encrypted": false,
        "filesystem": {
          "format": "fat32"
        },
        "format": true,
        "mountpoint": "/boot",
        "size": "513MB",
        "start": "5MB",
        "type": "primary"
      },
      {
        "encrypted": false,
        "filesystem": {
          "format": "ext4"
        },
        "format": true,
        "mountpoint": "/",
        "size": "100%",
        "start": "518MB",
        "type": "primary"
      }
    ],
    "wipe": true
  }
}