Preup to F12, won't boot

[Gordon Messmer]

On 11/19/2009 10:51 AM, Oliver Ruebenacker wrote:
>    I just preupgraded from F10 to F12, and booting goes as far as the
> Fedora logo (circle with lower tip) filling up with white, then
> flashing briefly. Then the screen goes and stays blank afterwards,
> except for a cursor, and it displays if I type somthing.
>    

Try to get /var/log/Xorg.0.log and send that to the list.  It will 
probably clarify why you aren't getting a login.

You might also try "nomodeset" as a boot option in GRUB.