gpt -r show disk0
     start       size index contents
         0          1       PMBR
         i          1       Pri GPT header
         2         32       Pri GPT table
        34          6
        40     409600     1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
    409640 2542739416
2543149056      32768     2 GPT part - E3C9E316-0B5C-ADB8-817D-F92DF00215AE
2543181824  636884926     3 GPT part - EBD0A0A2-B9E5-4A33-87C0-68B6B72699C7
3180066750  726962385
3907029135         32       Sec GPT table
3907029167          1       Sec GPT header