Originally Posted by johnsfine
Now that we know you have Ubuntu 10.04 (or later) we know the links colucix posted contain the correct answer to your question.
Not necessarily. Upgrades retain classic grub unless specifically replaced by the user.
I suspect this will change in future.
"grub-install -v" is the best way to determine the version.
As for re-applying the changes:
- for kernel changes, no
- for next Ubuntu release, that probably relies on whether an upgrade or a re-install is done.