Install kexec-tools by entering the following commands in the terminal:
sudo apt update sudo apt install kexec-tools
Description:
tools to support fast kexec reboots
This package provides tools to load a kernel into memory and then "reboot" directly into that kernel using the kexec system call, bypassing the normal boot process.
Homepage: https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/
Version: 1:2.0.16-1ubuntu1
Section: admin