Looks promising 
Save & run update-grub as per my post.
I'll add the usual disclaimer here though-
You're editing the bootloader, and while this should be painless, if you're unsure of how to recover from this situation, please be wary!
-Leezer-

Save & run update-grub as per my post.
I'll add the usual disclaimer here though-
You're editing the bootloader, and while this should be painless, if you're unsure of how to recover from this situation, please be wary!
-Leezer-