runtime | ram: 4M | caps: 100 | binary: vfs_block
+ provides
  + block
+ requires
  + file_system | writeable: no | label: guest.raw
+ config
  + vfs
  | + fs | buffer_size: 2M | label: guest.raw -> / | writeable: no
  + default-policy | file: /guest.raw | writeable: no | block_size: 512
+ content
  + rom | label: ld.lib.so
  + rom | label: vfs.lib.so
  + rom | label: vfs_block
-
