Technical
How To Reset Root Password With Knoppix

  • Mount Your Logical Volume
  • vi /etc/shadow
  • Scroll down to the line containing the root user’s information, which looks something like:
    root:dsfDSDF!s:12581:0:99999:7:::
  • Delete everything between the first and second colons, so that the line looks like:
    root::12581:0:99999:7:::
  • Save the file and exit your editor.
  • Type cd to return to your home directory.
  • Type umount mountplace to unmount the partition.
  • Type reboot to reboot your system, and remove the Knoppix CD from the drive.
    Now you can log into your system as root with no password. Make sure you change the password immediately.