I like to have a quick view of the grub menu at every boot so have edited the /etc/default/grub file to contain the following lines which do just that; it shows for just 2 seconds.
Code:
GRUB_DEFAULT=0
# next line will make countdown time show menu by default
GRUB_TIMEOUT_STYLE=MENU
# next line changed from 0 to 2 for 2 second delay; set delay you want.
GRUB_HIDDEN_TIMEOUT=2
# next line changed from true to false to allow delay countdown to show
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=2
#Real OS name in next line in "" is helpful if more than one *ubuntu distro on machine.
GRUB_DISTRIBUTOR="Xubuntu-18.04-Bionic"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
On a UEFI booting machine you have to use Esc, not shift to show the menu, but that can still be difficult to get to work; repeated pressing of Esc will sometimes work but I have occasionally had to have many tries before it was successful.
This edit has removed that annoyance as the grub menu shows always.
Bookmarks