/dev/sdb:
   MBR Magic : aa55
Partition[0] :       485376 sectors at         2048 (type fd)
Partition[1] :      3905536 sectors at       487424 (type fd)
Partition[2] :     15624192 sectors at      4392960 (type fd)
Partition[3] :    956756016 sectors at     20017152 (type 05)