help required undrstanding error messages

[rash]

I am trying to remaster knoppix 3.6, i have got to the stage where you make the big knoppix file which is an ISO 9660 filesystem compressed. I have done exactly what the 'HOW TO' from http://www.knoppix.net/wiki/Knoppix_Remastering_Howto

but when i execute the command : mkisofs -R -U -V "KNOPPIX.net filesystem" -publisher "KNOPPIX www.knoppix.net" \
-hide-rr-moved -cache-inodes -no-bak -pad /mnt/hda1/knx/source/KNOPPIX \
| nice -5 /usr/bin/create_compressed_fs - 65536 > /mnt/hda1/knx/master/KNOPPIX/KNOPPIX
to create the ISO 9660 compressed file, i am getting the following error : mkisofs: No such file or directory. Invalid node - /mnt/hda1/knx/source/knoppix and also bash: /mnt/hda1/knx/master/KNOPPIX/KNOPPIX: Is a directory.

I am using knoppix v3.6

Thanks

[Lukasz_P]

but when i execute the command : mkisofs -R -U -V "KNOPPIX.net filesystem" -publisher "KNOPPIX www.knoppix.net" \
-hide-rr-moved -cache-inodes -no-bak -pad /mnt/hda1/knx/source/KNOPPIX \
| nice -5 /usr/bin/create_compressed_fs - 65536 > /mnt/hda1/knx/master/KNOPPIX/KNOPPIX

check directory /mnt/hda1/knx/master/KNOPPIX/, is there any "KNOPPIX" subdir? I remeber something, there was too much "KNOPPIX" in the tutorial