U-Boot/Tools

Installing the U-Boot tools

On openSUSE

zypper install u-boot-tools

Installing on Arch Linux

pacman -S uboot-tools

Installing on Gentoo Linux

emerge u-boot-tools

Installing on Fedora Linux

dnf install uboot-tools

Tool documentation

mkenvimage

The mkenvimage tool takes a key=value input file (same as would a `printenv' show) and generates the corresponding environment image, ready to be flashed. See this article for more details: https://bootlin.com/blog/mkenvimage-uboot-binary-env-generator/

mkimage

The mkimage command is used to create images for use with the U-Boot boot loader. Thes eimages can contain the linux kernel, device tree blob, root file system image, firmware images etc., either separate or combined.

The U-Boot article describes how to create a boot.scr from a boot.cmd file. The Initial Ramdisk article is used to convert an initramfs into a uInitrd.