When de boot line appers i execute this command
knoppix lang = us

After looking of drives and hardware
then this screen appers

Welcome to the knoppix live linux-on-CD!

Accessing Knopixx CDROM at /dev/scd1... /modules/cloop.o : init_module:
Hint: insmod errors can be caused by incorrect module parameters, including invalid io or irq parameters.
Can't find KNOPPiX filesystem, sorry.

Dropping you to (very limited) shell.
Press reset button to quit.

Additional bulitin commands available:
cat mount unmount
insmod rmmod ls mod

knoppix#

that's all

Any information on how can i get it to work would be great.

Thank you very much.