I forgot to edit that line. It does nothing. It is what you see on the terminal output of update-grub. It goes no where else.

That said, I certainly should have changed it to avoid you having a heart attach.

That is a symbolic menu entry that will boot the newest kernel on the defined (between the { and }) partition (as long as it is a Debian based OS).

As for the ;"dpkg-reconfigure grub-pc" it should work too if you follow the instructions for where to install the bugger as given in drs305s post. You would do that while booted to 10.04.