project-termina/scripts/disk_layout.json

{
  "parent": "legacy_disk_layout.json",

  "layouts": {
    # These values were chosen by producing a tatl test image, mounting the
    # resulting image, and increasing the used disk space on ROOT-A and STATE
    # by roughly 20%. This significantly decreases disk usage by images, while
    # also leaving some flexibility in case packages move between the rootfs
    # and dev_image.
    "common": [
      {
        # Kernel for Slot A, no file system.
        "num": 2,
        "label": "KERN-A",
        "type": "kernel",
        "size": "32 MiB"
      },
      {
        # Kernel for Slot B, no file system.
        "num": 4,
        "label": "KERN-B",
        "type": "kernel",
        "size": "32 MiB"
      },
      {
        # ROOT-A
        "num": 3,
        "size": "100 MiB",
        "fs_size": "95 MiB",
        "fs_format": "squashfs"
      },
      {
        # STATE
        "num": 1,
        "size": "100 MiB",
        "fs_format": "squashfs"
      }
    ]
  }
}