Problems with Knoppix

[Mark Phillips]

I boot my laptop with the latest Knoppix v 5.1 CD. I then open a root 
terminal. I type

md5sum  /dev/hda

wait........

and get a number. I then repeat the experiment, and get a different number!

I have not mounted nor touched the local drive hda.

I tried this at runlevel 5 using the cheat code nofstab, and at runlevel 3. 
Same results.

Is this normal? 

I wanted to copy an image of my hard drive to another disk. I did that, but 
cannot get a consistent md5sum for the local drive to compare to the image I 
copied to another drive. I wanted to compare the 2 md5sums to insure I have a 
complete copy of the disk image before I reformat the drive for another 
project.

Thanks!

Mark Phillips