Comment 5 for bug 1635181

I'm glad I found this bug report! I've spent *a* *lot* of time trying to understand why my grub settings wheren't applied after a clean install of 18.04!

I was modifying /etc/default/grub as usual and nothing changed in the /boot/grub/grub.cfg, none of the options I was setting for the kernel command line appeared in the generated config after "update-grub". /etc/default/grub.d/* was overriding everything. I really cursed the guy who put there the configuration with hardcoded defaults that could *not* be overridden.

Well, I see I'm not the only one having trouble with that.

Put whatever you want in /etc/defaut/grub.d/* but /etc/default/grub should have the *final* word on the matter after "update-grub"!