F20 kickstart can't select a disk

[CLOSE Dave]

Trying to install Fedora 20 via kickstart on a x86_64 server. This has 
worked previously on several other identical servers. On this one, 
installation stops at the first screen with the error, "no disks 
selected". Watching more carefully, the message is first, "failed to 
save storage configuration", changing to "no disks selected" after a 
moment or two. Examining the anaconda logs (via the alternate consoles) 
did not reveal any smoking gun (or I don't know what to look for).

Manually selecting the disk item from the menu, choosing the /only/ disk 
on the machine, and selecting "continue" just repeats the error. Doing 
that again, this time choosing to manually partition the disk but 
accepting all the defaults anyway, the kickstart continues and appears 
to finish successfully.

However, the installed system is missing something, or several 
somethings. The network does not start. Several other start-up steps 
fail. Manually starting the network makes it appear that the machine is 
mostly normal.

Repeating the kickstart yields the same result.

Ideas? Solutions? I see that there are several complaints of this 
problem back on F18 but I haven't found recent comments.
-- 
Dave Close