=>      40  33554352    ada0  GPT  (16G)
        40    532480  ada0p1  efi  (260M)
    532520      1024  ada0p2  freebsd-boot  (512K)
    533544      7128          - free -  (3.5M)
    540672   2097152  ada0p3  freebsd-swap  (1.0G)
   2637824  30908416  ada0p4  freebsd-zfs  (15G)
  33546240      8152          - free -  (4.0M)

=>     9  499411  cd0  MBR  (975M)
       9  499411       - free -  (975M)

=>     9  499411  iso9660/PFSENSE  MBR  (975M)
       9  499411                   - free -  (975M)

