SystemBoot is a LinuxBoot distribution that works as a system firmware + bootloader, based on u-root

Kexecboot is a nice Linux-As-a-Bootloader implementation based on kexec

Tools to let a u-root instance boot signed live distro images over the web

Kexec into an in-memory emergency system

Convenient reboot for Linux systems with encrypted root partition.

Kexec as loadable kernel module for Linux ARM64 kernels

Kexec Magisk Module

khadas rescue system

Kexec-Hardboot based bootloader/boot menu for booting modern Linux kernels on ASUS TF300T

kexec helper to load kernels from GRUB configuration.

Simply run Ubuntu default or mainline kernels on Scaleway x86_64 Ubuntu instances

Kexec (boot) a new kernel as per bootloader configuration

Backport kdump/kexec for arm64

Arch Package for running standard Arch Kernels on Scaleway C1 instances

Automatically Kexec into latest Linux kernel version.

Continuous testing of the Linux Kernel in Travis CI

Kexec Tools: Userspace portion of Kexec - MIPS fixes

presentation slides for a talk on implementing bootloaders in u-root

Reboot your server in seconds not minutes using kexec