/usr/bin/grub-mknetdir

Usage: grub-mknetdir [OPTION...]
Prepares
GRUB network boot images at net_directory/subdir assuming net_directory being
TFTP root.

      --appended-signature-size=SIZE
                             Add a note segment reserving SIZE bytes for an
                             appended signature
      --compress=no|xz|gz|lzo   compress GRUB files [optional]
      --disable-cli          disabled command line interface access
      --disable-shim-lock    disable shim_lock verifier
      --dtb=FILE             embed a specific DTB
  -d, --directory=DIR        use images and modules under DIR
                             [default=/usr/lib/grub/<platform>]
      --fonts=FONTS          install FONTS [default=unicode]
      --install-modules=MODULES   install only MODULES and their dependencies
                             [default=all]
  -k, --pubkey=FILE          embed FILE as public key for signature checking
      --locale-directory=DIR use translations under DIR
                             [default=/usr/share/locale]
      --locales=LOCALES      install only LOCALES [default=all]
      --modules=MODULES      pre-load specified modules MODULES
      --sbat=FILE            SBAT metadata
      --themes=THEMES        install THEMES [default=starfield]
  -v, --verbose              print verbose messages.
  -x, --x509key=FILE         embed FILE as an x509 certificate for appended
                             signature checking
      --core-compress=xz|none|auto
                             choose the compression to use for core image
      --net-directory=DIR    root directory of TFTP server
      --subdir=DIR           relative subdirectory on network server
  -?, --help                 give this help list
      --usage                give a short usage message
  -V, --version              print program version

Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.

Prepares GRUB network boot images at net_directory/subdir assuming
net_directory being TFTP root.

Report bugs to <bug-grub@gnu.org>.