Provided by: grub2-common_2.06-2ubuntu7.2_amd64 

NAME
grub-set-default - set the saved default boot entry for GRUB
SYNOPSIS
grub-set-default [OPTION] MENU_ENTRY
DESCRIPTION
Set the default boot menu entry for GRUB. This requires setting GRUB_DEFAULT=saved in /etc/default/grub.
-h, --help
print this message and exit
-V, --version
print the version information and exit
--boot-directory=DIR
expect GRUB images under the directory DIR/grub instead of the /boot/grub directory
MENU_ENTRY is a number, a menu item title or a menu item identifier.
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
grub-reboot(8), grub-editenv(1)
The full documentation for grub-set-default is maintained as a Texinfo manual. If the info and grub-set-
default programs are properly installed at your site, the command
info grub-set-default
should give you access to the complete manual.
GRUB 2.06-2ubuntu7.2 December 2022 GRUB-SET-DEFAULT(8)