grub2-setpassword(8) - phpMan

GRUB-SET-PASSWORD(3)       Library Functions Manual       GRUB-SET-PASSWORD(3)
NAME
       grub-set-password  --  Generate the user.cfg file containing the hashed
       grub bootloader password.
SYNOPSIS
       grub-set-password [OPTION]
DESCRIPTION
       grub-set-password outputs the user.cfg file which contains  the  hashed
       GRUB  bootloader  password.  This  utility only supports configurations
       where there is a single root user.
       The file has the format: GRUB2_PASSWORD=<hashed password>.
OPTIONS
       -h, --help
              Display program usage and exit.
       -v, --version
              Display the current version.
       -o, --output=<DIRECTORY>
              Choose the file path to which user.cfg will be written.
SEE ALSO
       info grub
       info grub2-mkpasswd-pbkdf2
                                Thu Jun 25 2015           GRUB-SET-PASSWORD(3)