Fedora 15 Install

Hi, I’m attempting to do a clean install of Fedora 15, using the materials on your site, on a number of 3390 devices. I'd like to be able to specify the partitioning myself but I think it's picking up a default configuration that causes one huge LVM to be created from all available disks. The only way I get to modify things is via this screen: ┌──────────┤ Partitioning Type ├────────────┐ │ │ │ Installation requires partitioning of your hard drive. The │ │ default layout is suitable for most users. Select what space │ │ to use and which drives to use as the install target. │ │ │ │ Use entire drive │ │ Replace existing Linux system │ │ Use free space │ How do I specify the full partitioning configuration I wish to use? I seem to recall when I installed Fedora 14 I had to create a modified kickstart file and put it somewhere I could point the installer to but I can't recall and assume there must be an easier way. Neale