I attempted to upgrade a Fedora core 1 system to FC3-test3 using the ISO install disks. apparently Anaconda failed and then rebooted the computer part way into the install process. Apparently nothing was actually installed since the system rebooted and Fedora Core 1 came back up. It looks like it will be necessary to do a full format to get from Fedora Core 1 to Fedora Core 3.