Description of problem: IPA clients usually configure nsswitch to also contact remote databases (using ldap, for example) for user/group information. anaconda does not configure networking when using local media. Now, user/group lookups (eg. getent calls in the udev preinstall scriptlet), take a long time, since the network is unreachable. Configuring network significantly speeds up installation.
You can use the asknetwork parameter to force anaconda to configure your network before the upgrade really begins. Aside from that, there's nothing really we can do to help. We aren't going to know when to bring up the network on demand, and we don't want to ask to bring it up every time on upgrades just in case.
Thanks for the tip about asknetwork. What you could do is look at /etc/nsswitch.conf, and set up networking if either passwd, shadow or group contains ldap (or possibly nis or nisplus). BTW is there going to be an anaconda update? The reason I used the DVD to update the IPA client is because I tried using koan/cobbler, but anaconda did not find the fedora partitions. When running anaconda from the DVD, it finds the fedora partitions.