Today I wanted to activate the submenus in the Grub with GRUB_DISABLE_SUBMENU=n. That worked very well. My Grub looked very tidy at the next reboot BUT: I got a message after setting up the desktop that I had no internet connection. The corresponding icon in the tray had nothing, nothing at all but ethernet. So I undid the change in the grub with GRUB_DISABLE_SUBMENU=y. Restart -> ethernet was back … What has this to do with each other? Were there any modules not loaded? Sounds completely illogical to me,
I like the grub menu with submenu, how can I activate it?
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Strange indeed…
What if you simply comment out that line?
I assume you re-created grub.cfg, right?
Ok, I will try this.
with sudo update-grub, as alwas …
Using manjaro?
no. use EnOS Xfce
I forgot: the line was already commented out, even before
EndeavourOS does not have update-grub command, so you may have created it yourself?
Can you show its contents?
I have in stalled update-grub with yay before.
Is there a better way?
If it’s this package then update-grub is a pretty strightforward:
#!/bin/sh
set -e
exec grub-mkconfig -o /boot/grub/grub.cfg "$@"
So, that shouldn’t affect anything… 
visually in the terminal it does the same as update-grub
so can I uninstall update grub with yay again?
It does this:
#!/bin/sh set -e exec grub-mkconfig -o /boot/grub/grub.cfg "$@"
Don’t know if that could cause any issues, but as @jonathon said, better use the official command instead.
EDIT: you are too fast for me… 
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One possible reason might be picking a different kernel, or a fallback, instead of the usual one?
The GRUB menu shouldn’t affect anything other than which kernel is loaded… 
That might be the cause. So not grub as such.
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Well, I have now booted with kernel 5.4 LTS, Grub before with sudo grub-mkconfig -o /boot/grub/grub.cfg
updated -> same problem.
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I think I will get used to it, thanks for your help!
Looking at the default /etc/default/grub.cfg this item isn’t present, and I think that it’s the default anyway (https://www.gnu.org/software/grub/manual/grub/html_node/Simple-configuration.html).
Have you checked for a /etc/default/grub.cfg.pacnew? Have you used any other GRUB or configuration/customisation program previously? Have you tried reinstalling GRUB (grub-install /dev/BLAH) to make sure it’s up-to-date in the MBR/EFI?
Today I have newly installed EOS (online).
This is my grub in the original after the installation:
# GRUB boot loader configuration
GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="EndeavourOS"
GRUB_CMDLINE_LINUX_DEFAULT="quiet loglevel=3 nowatchdog"
GRUB_CMDLINE_LINUX=""
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK=y
# Set to 'countdown' or 'hidden' to change timeout behavior,
# press ESC key to display menu.
GRUB_TIMEOUT_STYLE=menu
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=auto
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/path/to/wallpaper"
GRUB_THEME=/boot/grub/themes/EndeavourOS/theme.txt
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
# Uncomment to make GRUB remember the last selection. This requires
# setting 'GRUB_DEFAULT=saved' above.
#GRUB_SAVEDEFAULT="true"
GRUB_DISABLE_SUBMENU=y
this is the Grub now:
# GRUB boot loader configuration
GRUB_DEFAULT=saved
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="EndeavourOS"
GRUB_CMDLINE_LINUX_DEFAULT="quiet loglevel=3 nowatchdog"
GRUB_CMDLINE_LINUX=""
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK=y
# Set to 'countdown' or 'hidden' to change timeout behavior,
# press ESC key to display menu.
GRUB_TIMEOUT_STYLE=menu
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=auto
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/path/to/wallpaper"
#GRUB_THEME=/boot/grub/themes/EndeavourOS/theme.txt
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
# Uncomment to make GRUB remember the last selection. This requires
# setting 'GRUB_DEFAULT=saved' above.
GRUB_SAVEDEFAULT="true"
GRUB_DISABLE_SUBMENU=y
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Hmm… that’s pretty similar to the Arch default:
I have no idea… 
this don’t exists here
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