The initrd.img from the images directory in recent builds of the devel tree do not contain libaudit, so it is not possible to log in using ssh or telnet to continue the build process. I created an updated initrd.img containing libaudit, which then exposed another more serious problem. This time /sbin/loader aborts with a corrupted double-linked list error after selecting an install media type. Log file of the loader error is attached.
Created attachment 126472 [details] /sbin/loader error output
Note that s390 isn't a supported build of Fedora Core; the images are just included if they happen to build, but aren't tested beyond that. Assigning to anaconda.
We don't support s390 for Fedora. If you have patches, we're more than willing to look at them, but aren't going to spend time fixing things for an unsupported arch.