# partition table of /dev/sdb (USB 250GB HDD) unit: sectors /dev/sdb1 : start= 63, size= 40965624, Id=83, bootable /dev/sdb2 : start= 40965687, size= 40965624, Id=83 /dev/sdb3 : start= 81931311, size=102414060, Id= c /dev/sdb4 : start=184345371, size=304046694, Id=83