new kernel 3.7.7 prevents booting

[Frédéric Bron]

>> That is why you should be using akmod-nvidia from rpmfusion instead of
>> kmod-nvidia.  The binaries will be rebuilt automatically and you won't have
>> this situation.
>>
> Not true in this case.  There is a bug in the nvidia installer script that
> causes the installation to fail when it can't determine the kernel version.
> Akmod-nvidia produces a failure log, which identified the issue and allowed
> the rpmfusion maintainers to write a patch.

I confirm, I have also akmod-nvidia installed. I thought this would
prevent such things but not in fact.
Frédéric