In the Grub menu you can use a countdown mechanism. However, sometimes it doesn’t work and you have to press Enter manually.
I figured out that this happens when my machine was not shut down normally. Sometimes my machine doesn’t halt and I need to press the power button manually. At the next boot the timeout is gone in my grub menu.
When the machine was stopped abnormally, a “recordfail timeout” will be used. So simply add the following line to “
grub” file looks like this:
GRUB_DEFAULT=0 #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=7 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="acpi=noirq splash" GRUB_CMDLINE_LINUX="" GRUB_RECORDFAIL_TIMEOUT=7
After editing don’t forget to run “
Tip from here.