Newlines slipping into dynamic partition table layouts
I'm not sure where they slipped in, but custom partition tables are ending up with DOS style line endings. This causes kickstart to fail miserably, since this command:
echo foo > /tmp/diskpart.cfg
ends up becoming:
echo foo > /tmp/diskpart.cfg\r
diskpart.cfg\r instead of
diskpart.cfg. I couldn't figure out where in the path they're appearing (web browser, rails, mysql, etc), but I did a simple patch to filter them out of the generated kickstart script.