I installed foreman 1.9.0 on a redhat 7.1 and try to provision a centos 6.6 with the default kickstart and kickstart pxe.
I tried to modify parameters, but it complains all the time on the same lines. Here are two picture about the problem: https://i.stack.imgur.com/qIG8S.png
Here are the files: http://pastebin.com/smL3na37