F16: Upgrade from Fedora 15 to 16 on home-built Linux Desktop 2

This did not go smoothly, but I got through it. Here is what I did:

1. Erase old kernels to free up space in the /boot partition:

   rpm -q kernel
   rpm -e <older kernels>
   

2. preupgrade

Unfortunately, the preupgrade is so large that even one kernel in /boot is too many. (My /boot partition is only 200 MB, which, before preupgrade, was plenty.) I moved my last kernel files to / hoping to be able to delete them later. I figured that if the upgrade failed, I could boot up in single-user mode from any old Linux disk and move them back.