I've put the upgrade log up on the URL above. I did an
upgrade from RedHat 5.2 (running kernel 2.2.5).
Mid-upgrade, my /usr partion filled up to 99%, and multiple
packages errored out without putting anything to the
screen. When I rebooted, I had to manually reupgrade the
errored packages in the upgrade log from CD.
This has been fixed in later versions of the installer, and the
installer now does disk space estimates.