[Kernel driver] mkimage command not found

00. Catalog

Article directory

01. Problem description

The following error occurs when compiling the kernel

  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  OBJCOPY arch/arm/boot/Image
  Kernel: arch/arm/boot/Image is ready
  GZIP    arch/arm/boot/compressed/piggy.gzip
  CC      arch/arm/boot/compressed/misc.o
  CC      arch/arm/boot/compressed/decompress.o
  CC      arch/arm/boot/compressed/string.o
  AS      arch/arm/boot/compressed/piggy.gzip.o
  LD      arch/arm/boot/compressed/vmlinux
  OBJCOPY arch/arm/boot/zImage
  Kernel: arch/arm/boot/zImage is ready
  UIMAGE  arch/arm/boot/uImage
"mkimage" command not found - U-Boot images will not be built
make[1]: *** [/home/deng/arm/kernel-3.4.39/arch/arm/boot/Makefile:102：arch/arm/boot/uImage] 错误 1
make: *** [/home/deng/arm/kernel-3.4.39/arch/arm/Makefile:294：uImage] 错误 2
deng@local:~/arm/kernel-3.4.39$

insert image description here

02. Problem Analysis

The mkimage command was not found, and the corresponding tool needs to be installed

“mkimage” command not found - U-Boot images will not be built

03. Problem solving

Just install the corresponding tools

deng@local:~$ sudo apt install u-boot-tools

04. Question verification

Enter the mkimage command

deng@local:~$ mkimage --help
mkimage: invalid option -- '-'
Error: Invalid option
Usage: mkimage -l image
          -l ==> list image header information
       mkimage [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image
          -A ==> set architecture to 'arch'
          -O ==> set operating system to 'os'
          -T ==> set image type to 'type'
          -C ==> set compression type 'comp'
          -a ==> set load address to 'addr' (hex)
          -e ==> set entry point to 'ep' (hex)
          -n ==> set image name to 'name'
          -d ==> use image data from 'datafile'
          -x ==> set XIP (execute in place)
       mkimage [-D dtc_options] [-f fit-image.its|-f auto|-F] [-b <dtb> [-b <dtb>]] [-E] [-B size] [-i <ramdisk.cpio.gz>] fit-image
           <dtb> file is used with -f auto, it may occur multiple times.
          -D => set all options for device tree compiler
          -f => input filename for FIT source
          -i => input filename for ramdisk file
          -E => place data outside of the FIT structure
          -B => align size in hex for FIT structure and header
Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-p addr] [-r] [-N engine]
          -k => set directory containing private keys
          -K => write public keys to this .dtb file
          -G => use this signing key (in lieu of -k)
          -c => add comment in signature node
          -F => re-sign existing FIT image
          -p => place external data at a static position
          -r => mark keys used as 'required' in dtb
          -N => openssl engine to use for signing
       mkimage -V ==> print version information and exit
Use '-T list' to see a list of available image types
deng@local:~$