Manual: grub-mkimage

GRUB-MKIMAGE(1)						User Commands					     GRUB-MKIMAGE(1)

NAME
       grub-mkimage - make a bootable image of GRUB

SYNOPSIS
       grub-mkimage [OPTION...] [OPTION]... [MODULES]

DESCRIPTION
       Make a bootable image of GRUB.

       -c, --config=FILE
	      embed FILE as an early config

       -C, --compression=(xz|none|auto)
	      choose the compression to use for core image

       --disable-cli
	      disable command line interface access

       --disable-shim-lock
	      disable shim_lock verifier

       -d, --directory=DIR
	      use images and modules under DIR [default=/usr/lib/grub/]

       -D, --dtb=FILE
	      embed FILE as a device tree (DTB)

       -k, --pubkey=FILE
	      embed FILE as public key for PGP signature checking

       -m,				--memdisk=FILE
	      embed FILE as a memdisk image

       Implies `-p (memdisk)/boot/grub' and overrides

       any prefix supplied previously, but the prefix
	      itself can be overridden by later options

       -n, --note
	      add NOTE segment for CHRP IEEE1275

       -o, --output=FILE
	      output a generated image to FILE [default=stdout]

       -O, --format=FORMAT
	      generate	an  image  in  FORMAT  available  formats:  i386-coreboot,  i386-multiboot,  i386-pc,  i386-xen_pvh,
	      i386-pc-pxe,  i386-pc-eltorito,  i386-efi,  i386-ieee1275,  i386-qemu,   x86_64-efi,   i386-xen,	 x86_64-xen,
	      mipsel-yeeloong-flash,  mipsel-fuloong2f-flash,  mipsel-loongson-elf,  powerpc-ieee1275, sparc64-ieee1275-raw,
	      sparc64-ieee1275-cdcore,	sparc64-ieee1275-aout,	 ia64-efi,   mips-arc,	 mipsel-arc,   mipsel-qemu_mips-elf,
	      mips-qemu_mips-flash,  mipsel-qemu_mips-flash, mips-qemu_mips-elf, arm-uboot, arm-coreboot-vexpress, arm-core‐
	      boot-veyron, arm-efi, arm64-efi, loongarch64-efi, riscv32-efi, riscv64-efi

       -p, --prefix=DIR
	      set prefix directory

       -s, --sbat=FILE
	      SBAT metadata

       -S, --appended-signature-size=SIZE
	      Add a note segment reserving SIZE bytes for an appended signature

       -v, --verbose
	      print verbose messages.

       -x, --x509key=FILE
	      embed FILE as an x509 certificate for appended signature checking

       -?, --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.

REPORTING BUGS
       Report bugs to .

SEE ALSO
       grub-install(8), grub-mkrescue(1), grub-mknetdir(8)

       The full documentation for grub-mkimage is maintained as a Texinfo manual.  If the info and grub-mkimage programs are
       properly installed at your site, the command

	      info grub-mkimage

       should give you access to the complete manual.

GRUB 2.14-2ubuntu2					 March 2026					     GRUB-MKIMAGE(1)