I tried to format my harddisk (160 GB) with the following command
dd if=/dev/zero of=/dev/sda
After some 3 hours, following error came up:
dd: writing to '/dev/sda' : No space left on device 312581809+0 records in 312581808+0 records out 160041885696 bytes (160 GB) copied, 10708.3 s, 14.9 MB/s
Any idea what went wrong?