Ok, here are some results:

ls -al /dev/hd* produced results that scrolled past the screen. I typed ls -al /dev/hda* and had seen that hda3 was listed. I did type the mknod /dev/hda3 b 3 3, but did not realize until after the fact that was to be done if no results were seen for ls -al /dev/hd*.

mount /dev/hda3 /mnt-system produced 'no such device or address'

ls <enter> lists the file system and mnt-system is there. Since both hda3 and mnt-system are listed, I am not sure what the device or address is that can not be found.

I put the knoppix folder under /home in hda3. That seems to be the highest point I can go in that partition and that is where the puppy linux folder is located as well.