И вот чего там у меня написано:
"CONSIDERATIONS FOR KNOPPIX
====================================
1.) There is no automatic start of external accessible services.
2.) There are no default passwords. All accounts are locked by default.
Even local logins are not possible (unless you set a password or create
new user accounts as root).
3.) Therefore, all local interactive processes are started by init without
authorization.
Version 1.x up to and including 2.1-21-08-2001: Because there is no
valid password for "su", but still the possibility should exist to use
the system as "rescue cd", all programs (including KDE) are running
under root id.
Changed from version 2.1-24-08-2001 and up: The graphical desktop
is started with the unprivileged user id "knoppix". Programs that
only work for root are started using sudo without password. This has
the advantage of making faults caused by defective software very
unlikely, but does not enhance local security, since it is fairly
easy to switch between the "knoppix" and "root" account. The knoppix
user should never be allowed for external logins (in the case that
sshd or similar servers are being launched)."
а про пароли ничего....... (а он все равно так и просит пароль ) честно говороя с английским у меня туго