Re: Suggestion for grub beep notification

[Glenn Washburn]

Hi Nick,

I really shouldn't have responded to your original email on the
grub-devel list because that list is for GRUB development. I've now
moved this to the help-grub list, which is where these kinds of
questions belong.

On Sat, 17 Sep 2022 12:27:15 +1000
Nick F <nfieraru@gmail.com> wrote:

> Hi Glenn, thanks for your answer. I edited /etc/default/grub and appended
> to the last line the command
> play 60 440 4
> When I do update-bootloader, it tells me
> + /usr/sbin/grub2-mkconfig -o /boot/grub2/grub.cfg
> /etc/default/grub: line 50: play: command not found

Yes, in my previous email, I said to put it at the end of the grub.cfg,
which will be located usually at /boot.grub.grub.cfg. It will get
over-written everytime you do update-bootloader though. I don't know
what OS you're using as I'm unfamiliar with the "update-bootloader"
command. However, on Debian or Ubuntu you can create a file at
/etc/grub.d/99_menu-beep with the contents "play 60 440 4", which
will get inserted into the grub.cfg when the OS bootloader update
scripts are run. You may want to look into this functionality for your
system.

Putting it in /etc/default/grub will definitely not work as that is a
shell script file and not anything that it run by GRUB.

> I tried next to use the command: play "60 440 4" but I got the same error.

I also do not know what architecture you're running. The play command
is only available on x86 targets. If you are using an x86 target, then
the command is likely not available because you need to load the play
module via the GRUB command "insmod play".

> I also tried moving the command GRUB_INIT_TUNE="480 440 1" to the last line
> of the grub script, but the beep comes up about 6 seconds before the menu
> is displayed.

It doesn't matter where you put the GRUB_INIT_TUNE line in
/etc/default/grub, it will always create a tune before the menu. It
gets inserted into the grub.cfg via 00_header, which goes at the start
of the grub.cfg.

Glenn

> 
> Nicolae
> 
> On Sat, Sep 17, 2022 at 7:07 AM Glenn Washburn <development@efficientek.com>
> wrote:
> 
> > On Sat, 10 Sep 2022 16:41:21 +1000
> > Nick F <nfieraru@gmail.com> wrote:
> >
> > > Hi guys,
> > >
> > > I am using grub to book a dual OS computer. When I start/restart the
> > > computer, I want to be notified by a beep, so I can make the OS
> > selection.
> > > I enabled the beep by uncommenting the line GRUB_INIT_TUNE in
> > > /etc/default/grub but the beep comes up a few seconds before the grub
> > menu
> > > is displayed. While this is not a big issue, is it possible to change
> > some
> > > configuration so that the beep happens after the start menu is displayed?
> > > It doesn't make much sense to me to have a beep then look at the black
> > > screen for five seconds or more before I can make a selection.
> > >  I use OpenSuse Leap 15.4 in case it matters.
> >
> > I've not tried this, but what might get you what you want it to use the
> > "play" command to create a tone. I think if you put it at the end of
> > the grub.cfg it'll happen after the menu is displayed.
> >
> > Glenn
> >