I searched for info here but was unsuccesful. I changed the default username from knoppix to my own name if that helps in troubleshooting the problem.

I tried executing apt-get update and then apt-get upgrade after installing on a hard disk but I got the following:

root@knop:~# apt-get update
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Get:44 http://ftp.de.debian.org unstable/non-US/non-free Release [95B]
Fetched 7258kB in 37s (192kB/s)
Reading Package Lists... Done
Building Dependency Tree... Done
root@knop:~# apt-get upgrade
Reading Package Lists... Done
Building Dependency Tree... Done
The following packages have been kept back
autotrace cpp efax-gtk g++ gcc gnumeric jpilot-backup karbon kasteroids
kbattleship kbounce kchart kdelibs4-dev kformula kivio kmahjongg
koffice-libs koshell kpresenter kreversi ksokoban kspread kugar kword
libkdegames1 libnspr4 libnss3 liborbit2 libpng12-0 mgp mozilla
mozilla-browser mozilla-mailnews mozilla-psm mozilla-xft pilot-link stunnel
telnet-ssl telnetd-ssl tetex-extra
148 packages upgraded, 0 newly installed, 0 to remove and 40 not upgraded.
Need to get 15.9MB/63.3MB of archives. After unpacking 3738kB will be used.
Do you want to continue? [Y/n] y
Get:1 http://ftp.de.debian.org testing/main ncurses-bin 5.3.20030510-2 [199kB]
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Get:23 http://ftp.de.debian.org testing/main xfonts-terminus 4.03-1 [672kB]
Get:24 http://ftp.de.debian.org testing/main fb-music-high 0.1.1 [6950kB]
Fetched 15.9MB in 1m22s (192kB/s)
Preconfiguring packages ...
dpkg: syntax error: unknown group `cdrom' in statusoverride file
E: Sub-process /usr/bin/dpkg returned an error code (2)

Any help greatly appreciated like pointing me to web pages with info what to do.

Thanks.