make mirrorcheck without contrib?

[Max Moritz Sievers <max.moritz.sievers@gmx.de>]

Hi,
I want to burn just Debian GNU/Linux Potato main i386 US + NonUS so I 
didn't download contrib. I think I set up the CONF.sh right but when I 
try to "make mirrorcheck" I get the following errors:

Apt-get is updating his files ...
Err file: potato/contrib Packages
  File not found
Ign file: potato/contrib Release
Err file: potato/non-US/contrib Packages
  File not found
Ign file: potato/non-US/contrib Release
Failed to fetch 
file:/home/max/ftp/debian/dists/potato/contrib/binary-i386/Packages
  File not found
Failed to fetch 
file:/home/max/ftp/debian-non-US/dists/potato/non-US/contrib/binary-i386/Packages
  File not found
Reading Package Lists... Done
Building Dependency Tree... Done
W: Couldn't stat source package list 'file: potato/contrib Packages' 
(/home/max/ftp/tmp/apt/potato-i386/apt-state/lists/_home_max_ftp_debian_dists_potato_contrib_binary-i386_Packages) 
- stat (2 No such file or directory)
W: Couldn't stat source package list 'file: potato/non-US/contrib 
Packages' 
(/home/max/ftp/tmp/apt/potato-i386/apt-state/lists/_home_max_ftp_debian-non-US_dists_potato_non-US_contrib_binary-i386_Packages) 
- stat (2 No such file or directory)
W: You may want to run apt-get update to correct these missing files
E: Some index files failed to download, they have been ignored, or old 
ones used instead.
make: *** [apt-update] Error 100

I wonder where I can configure that I don't want contrib because neither 
in CONF.sh nor in Makefile is even the word "contrib".

Please help me.


with regards,
Max Moritz Sievers