Kernel Boot

Kernel Boot

Kernel Boot is a CLI utility that uses kexec to load Linux kernels without rebooting. It bypasses hardware initialization and bootloader stages, allowing direct transition from the running kernel to a new one.

Usage

Commands                             Description 

sudo kboot switch <config_file>      Switches the kernel using the settings in the specified configuration file

Configuration files are stored in /etc/kboot.d.

Important notes

• All running processes, including the graphical session, are terminated during the transition.
• Kernel Boot is not compatible with NVIDIA Proprietary drivers.

What it doesn’t do

• Replace the bootloader (GRUB still handles initial boot)
• Replace init or manage services
• Generate initramfs (use dracut or initramfs-tools for that)