Problem with DNS resolution in kickstart post script

Issue

• During kickstart in the post section, the actual network configuration is written including a resolv.conf with the production network information. Those nameservers are not accessible during kickstart.
• The final two steps of the kickstart do the following within the chrooted environment:

%post# Start post install kernel options update
[...]
wget "http://satellite5-server.example.com/cblr/svc/op/ks/profile/RHEL6-x86_64:2:INTERNAL-ORG" -O /root/cobbler.ks
wget "http://satellite5-server.example.com/cblr/svc/op/trig/mode/post/profile/RHEL6-x86_64:2:INTERNAL-ORG" -O /dev/null
%end

• Those two commands are not run successfully because the nameservers in the chrooted environment are not accessible. This delays the kickstart process by 2 times the resolve timeout and additionally the cobbler.ks will be empty.