$ fdisk -l /dev/sda
Note: sector size is 2048 (not 512)

Disk /dev/sda: 498 MB, 498204672 bytes
181 heads, 56 sectors/track, 24 cylinders
Units = cylinders of 10136 * 2048 = 20758528 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          24      486416    6  FAT16
Partition 1 has different physical/logical beginnings (non-Linux?):
     phys=(0, 0, 56) logical=(0, 1, 1)