MKIMAGE(1) General Commands Manual MKIMAGE(1)NAME
mkimage - Generate image for U-Boot
SYNOPSIS
mkimage [options]
DESCRIPTION
The mkimage command is used to create images for use with the U-Boot boot loader. These images can contain the linux kernel, device tree
blob, root file system image, firmware images etc., either separate or combined.
mkimage supports two different formats:
The old legacy image format concatenates the individual parts (for example, kernel image, device tree blob and ramdisk image) and adds a 64
bytes header containing information about target architecture, operating system, image type, compression method, entry points, time stamp,
checksums, etc.
The new FIT (Flattened Image Tree) format allows for more flexibility in handling images of various types and also enhances integrity pro-
tection of images with stronger checksums.
OPTIONS
List image information:
-l [uimage file name]
mkimage lists the information contained in the header of an existing U-Boot image.
Create old legacy image:
-A [architecture]
Set architecture. Pass -h as the architecture to see the list of supported architectures.
-O [os]
Set operating system. bootm command of u-boot changes boot method by os type. Pass -h as the OS to see the list of supported OS.
-T [image type]
Set image type. Pass -h as the image to see the list of supported image type.
-C [compression type]
Set compression type. Pass -h as the compression to see the list of supported compression type.
-a [load addess]
Set load address with a hex number.
-e [entry point]
Set entry point with a hex number.
-n [image name]
Set image name to 'image name'.
-d [image data file]
Use image data from 'image data file'.
-x Set XIP (execute in place) flag.
Create FIT image:
-D [dtc options]
Provide special options to the device tree compiler that is used to create the image.
-f [image tree source file]
Image tree source file that describes the structure and contents of the FIT image.
EXAMPLES
List image information:
mkimage -l uImage
Create legacy image with compressed PowerPC Linux kernel:
mkimage -A powerpc -O linux -T kernel -C gzip
-a 0 -e 0 -n Linux -d vmlinux.gz uImage
Create FIT image with compressed PowerPC Linux kernel:
mkimage -f kernel.its kernel.itb
HOMEPAGE
http://www.denx.de/wiki/U-Boot/WebHome
AUTHOR
This manual page was written by Nobuhiro Iwamatsu <iwamatsu@nigauri.org> and Wolfgang Denk <wd@denx.de>
2010-05-16 MKIMAGE(1)
Check Out this Related Man Page
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
-d, --directory=DIR
use images and modules under DIR [default=/usr/lib/grub/<platform>]
-k, --pubkey=FILE
embed FILE as public key for 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-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, pow-
erpc-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-efi, arm64-efi
-p, --prefix=DIR
set prefix directory
-v, --verbose
print verbose messages.
-?, --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 <bug-grub@gnu.org>.
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-mkimage (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-MKIMAGE(1)