I have tried to add a group and a user to my knoppix-box for FTP purposes, but I get only error-messages:
When I (as Root) type:
addgroup ftp
I get the following:
  • Adding group ftp (1001)...
    rpcinfo: cann't contact portmapper: RPC: Remote System Error - Connection Refused
    groupadd: unable to open shadow group file
    addgroup: '/usr/sbin/groupadd -g 1001 ftp' returned error code 10. Aborting.
    Cleaning up.

A similar message appears when trying to add a user.
What did I do wrong?

Knoppix 3.1 running from CD. Started up with boot-disk.
Network configured and working.