Grub2 sub menu not working

I am running Grub 2:
Standard Endeavour can be started,
Windows has been found and can be started
and also Manjaro can be selected.

The only thing not working is when I try to enter the extended Menu for selecting an other kernel to start endeavour. I can see that there are the menue points inside, but before I can select something the standart option is loading. Even a grub update has not improve the situation.
Does someone have an idea what the problem could be? If some additinal data is needed to get a trace to the problem plz tell me.

Do you use grub 2 or systemd-boot ?
The two are not compatible and only one of the two should be used.

Grub 2.

So, you mean that the Advanced options menu has the alternative boot entries. Is it so?

Post output of this command:

sudo grep -i timeout /etc/default/grub /boot/grub/grub.cfg
1 Like

/etc/default/grub:# Set to ‘countdown’ or ‘hidden’ to change timeout behavior,
/boot/grub/grub.cfg:if [ x$feature_timeout_style = xy ] ; then
/boot/grub/grub.cfg: set timeout_style=menu
/boot/grub/grub.cfg: set timeout=5
/boot/grub/grub.cfg:# Fallback normal timeout code in case the timeout_style feature is
/boot/grub/grub.cfg: set timeout=5

What about this?

Please, use code formatting when you post terminal output. It is important.

Yes I mean the advanced option menu. Where I should be able to choose the alternative kernel.

I can’t think of a reasonable explanation of this behavior.
IIUC, we are talking about the timeout that is not disrupted after you press any key, as it is the known proper behavior.
The only far explanation might be a stuck key on the keyboard, or some other HW related issue. :man_shrugging:

What is against this theory is that I did not get this problems when I work with an other GRUB (Different disk setup via Manjaro).

But thanks for your time to answer me.

If you want, post your grub.cfg to some pastebin web service, so it can be investigated for other clues.