F16: After update to grub2-1.99-1.fc16.x86_64 cannot boot

[Peter Gueckel]

Joachim Backes wrote:

> Anybody has the same issue?

Yes, please HELP! :-)

I am unable to boot my desktop computer. I 
just get a grub rescue command prompt and no 
grub commands except set seem to be 
recognized. I cannot boot into Fedora 15 or 
Fedora 16 alpha.

I am trying to fix by running the 
boot.fedora.iso CD, but I am not hopeful that 
this is the solution I want.

Any ideas how to get grub installed properly 
on a system that only had grub rescue prompt 
and will not boot into any installed fedoras?