grub2-reboot (8) - Linux Manuals

grub2-reboot: Set the default boot menu entry for the next boot only.

Command to display grub2-reboot manual in Linux: $ man 8 grub2-reboot

NAME

grub-reboot --- Set the default boot menu entry for the next boot only.

SYNOPSIS

grub-reboot [--boot-directory=DIR] MENU_ENTRY

DESCRIPTION

grub-reboot sets the default boot menu entry for the next boot, but not further boots after that. This command only works for GRUB configuration files created with GRUB_DEFAULT=saved in /etc/default/grub.

OPTIONS

--boot-directory=DIR: Find GRUB images under DIR/grub. The default value is /boot, resulting in grub images being search for at /boot/grub.
MENU_ENTRY: A number, a menu item title or a menu item identifier.