Testing

In order to see how the tools work and to check if all sectors for example of a floppy have been overwritten, you can use VCHE the virtual console hex editor. In our example we will securely erase all data from a floppy.

First type the following command:

# shred -v -n 1 /dev/fd0

Shred will overwrite the floppy with one random pass.

Then let's run:

# vche-raw /dev/fd0

The floppy should be filled with random values.

Then we type the following command:

# shred -v -n 1 -z /dev/fd0

The -z Option will make a additional pass with zero values.

And we run VCHE again

# vche-raw /dev/fd0

The floppy should be filled with zero values.

Critical Comments, and Suggestions are welcome: klemens(dot)hofer(at)aon(dot)at