This rather cryptic error may appear during a Fedora 16 installation and simply tries to tell you, that you forgot to create a BIOS boot partition.
If you’re doing a kickstart install, a look at Fedora’s Kickstart wiki page may be helpful. A big yellow alert box essentially tells you to add the following line
part biosboot --fstype=biosboot --size=1
to your kickstart file that used to work with Fedora versions <= 15.
Fedora 16 common bugs