Description of problem:
My Acer Aspire One netbook was updated from Fedora 16 to Fedora 17 via preupgrade. Before preupgrade, the system was fully updated. 

Once preupgrade ended, the system booted up fine, but the kernel it is running shows it to be 3.3.7-1.fc16.i686 instead of fc17. So, I tried to run "yum update -y".  That bombs out with the following error:

"Error: requested datatype primary not available" 

Version-Release number of selected component (if applicable):
Yum version 3.4.3

How reproducible:

everytime I run "yum update -y" that error occurs and nothing gets updated.

Steps to Reproduce:
1. f16 -> f17 via preupgrade
2. reboot and do the install
3. reboot and run "yum update -y"
  
Expected results:

Yum should have updated whatever that needs to be updated.  I'd done yum clean ll, rm'ed the *.db files and nothing seems to help.

Additional info:

none for now.