fc14->fc15 via preupgrade hangs during first boot

[Linuxguy123]

On Fri, 2011-05-27 at 15:12 -0600, Greg Woods wrote:
> On Fri, 2011-05-27 at 13:24 -0700, Monty Clift wrote:
> >  the screen is stuck for more than an hour and the last line written
> > was:
> > 
> > 
> > Started LSB: Start up the OpenSSH server daemon
> > and there is a blinking cursor
> 
> There are plenty of possibilities, but this could mean that the video
> driver did not start. Try hitting CTRL-ALT-F3. If that produces a text
> console with a login prompt, then this is your problem.
> 
> In particular, if you had been using the nvidia proprietary drivers, you
> will need to install it again for your new kernel. 


I'm having the same problem.  I'm using the proprietary nvidia drivers.

Ctrl-Alt-F3 does NOT produce a command prompt.   

Any ideas ?

Thanks