how to (manually) add a stanza to /boot/grub/grub.cfg?

[Nils Kassube]

Robert P. J. Day wrote:
>   in various RH-based distros, i used to manually add a couple extra
> stanzas to my grob config file to represent slightly different boot
> options.  that is, i'd add another stanza called, say, "noisy", that
> would represent a standard boot except with more debugging info
> turned on.  so it would be the same kernel, just with slightly
> different command-line options.
> 
>   on RH-type systems, that was fine since one was free to hack the
> grub config file.  but what does one do in ubuntu, when the config
> file clearly screams, "DON'T EDIT ME!".  how does one get the same
> effect via update-grub?  thanks.

Have a look at [1], specifically in section "/etc/grub.d/ (directory)" 
the part about "40_custom".


Nils

[1] <https://help.ubuntu.com/community/Grub2>