I had tried fdisk command to delete it and dd command to overwrite that  2 partitions but that 2 partitions still exist. Any suggestion to delete that 2 partitions on my Toshiba USB flash disk 16 GB? It's hardware problem or not.Because it took time to mount it
Cant Delete 2 partitions (Fat32 and ext3) on Toshiba USB flash disk 16G
linux