FC2T2 install: anaconda spins at 100% in disk druid

[Mike Shaver]

I'm using the FC2T2 boot.iso to kick off a network install (which seems
to fetch the 67M stage2.img, rather than the 12M netstg2.img, by the by)
and when I get to the disk druid stage it spins at 100% CPU, not
repainting.

This machine has a pair of SATA drives as its only storage, one 120G
Seagate and one 250G WD.  The SATA controller is a Silicon Image 3112A,
built into my A7N8X-Deluxe motherboard, and both drives are just fine
under FC1 and XP.  They're detected properly at installer-boot, as far
as I can tell, and the initial display of the disk druid screen shows
them both with their correct partitioning.  I just can't interact with
it in any way before it goes off into spin-mode.

I'm not sure what it's doing, but there's nothing in dmesg that leapt
out at me. I'll take a closer look at the SELinux audit spew for
correlations, I suppose.

If anyone has diagnostic hints, I would very much welcome them.

Mike