Comment 164 for bug 477169

jrd... look to #160 for an improved solution that uses the new kernels (as a said above, the problem is not with the new kernels)! And if ubuntu keeps with the same process of the last kernel updates, the directory ubuntu/install/boot/grub will be updated or the files will be deleted in the new update. In this way, if after an update the system boots ok then the problem has been solved and you don't have to nothing to return to the "normal way" of booting.