Hello,
I wanted to write zeros on usb and proof it.
I tried to write zeros on kingston usbdrive few times using:
sudo dd if=/dev/zero of=/dev/sdb bs=512
in 30489408
out 30489408
to proof everything is zero I found this on the net:
sudo dd if=/dev/sdb | hexdump -C | grep [^00]
It outputs a red number "3a2768" (I think this is for nonzero besides from
the zeros)
Output "redcoloured":
00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
"|................|
*
3a2768"000
Does anyone know if this should not be or be there?
