yanzhihong@yzh:~/nook3$ file noogie.img
noogie.img: x86 boot sector; partition 1: ID=0xc, active, starthead 1, startsector 32, 155616 sectors, code offset 0x0
yanzhihong@yzh:~/nook3$ sudo mount -o loop,offset=16384  noogie.img  /mnt

32*512
16384