to complete the needed steps, don´t edit the /boot/grub/grub.cfg directly (as it says in it´s header)
you have to edit the /etc/grub.d/30_os-prober
Replace
if sleep$verbose --interruptible ${GRUB_HIDDEN_TIMEOUT} ; then
set timeout=0
With
if sleep$verbose --interruptible ${GRUB_HIDDEN_TIMEOUT} ; then
set timeout=5
Finally do the update-grub2 and check if the change arrived in /boot/grub/grub.cfg at the place mentioned in the post before
to complete the needed steps, don´t edit the /boot/grub/grub.cfg directly (as it says in it´s header) d/30_os- prober
you have to edit the /etc/grub.
Replace HIDDEN_ TIMEOUT} ; then HIDDEN_ TIMEOUT} ; then
if sleep$verbose --interruptible ${GRUB_
set timeout=0
With
if sleep$verbose --interruptible ${GRUB_
set timeout=5
Finally do the update-grub2 and check if the change arrived in /boot/grub/grub.cfg at the place mentioned in the post before