Using the 2008-03-18 initrd.img and vmlinuz, I was trying to do a url install over my existing rawhide installation. After selecting "upgrade existing installation, I was greeted with the attached exception
Created attachment 298388 [details] anaconda crash
This may be related to the booty changes pjones made over the weekend, and to upgrades. Doing a non-upgrade install now before adding it to any blockers.
Straight installs seem to work fine. Adding to F9Blocker so that we fix upgrades before the release.
Should be fixed in booty-0.100.fc9
Upgrades have been working for me in this case, closing this bug.