Editing grub boot menu, how to save?

[Goh Lip]

On 01/11/2021 00:21, Ralf Mardorf via ubuntu-users wrote:
> On Sun, 31 Oct 2021 17:04:08 +0100, Ralf Mardorf wrote:
>> IOW the file might never get updated
> ...
>
> ..._if_ it was edited. Updates probably only affect the file _if_ it is
> not an edited file.
>
> Again! By one way or the other it is wrong to edit this file to
> configure the GRUB menu.
>
> It doesn't matter if Colin is right or my guess should be correct, this
> file is not a GRUB config file and editing this file has got
> consequences that are unwanted.
>

A file that *can* be corrected by the user is /etc/default/grub. The
entry to change the label is
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
Change to
GRUB_DISTRIBUTOR=`Ubuntu+Whatever_You_Like`

However, that only change the menuentry of the 'originating' or
'controlling' grub, not the os-prober entries of other Ubuntu distro's.

To really have control over all distro's, here's one that is a dedicated
or OS-independent grub.

https://archived.forum.manjaro.org/t/creating-a-new-os-independent-grub-2-bootloader/3150

I have this since the days of grub-legacy, but I think this method would
be far more difficult for a new user.

BTW, I have grub, systemd-boot, refind and msdos, gpt, uefi and
bios-legacy all in the same system -multiple disks. Not something I
recommend for the faint-hearted. A piano falling down is less stressful. :)

Cheers.