tldr/pages/linux/kexec.md

kexec

Directly reboot into a new kernel. More information: https://manned.org/kexec.

• Load a new kernel:

kexec -l {{path/to/kernel}} --initrd={{path/to/initrd}} --command-line={{arguments}}

• Load a new kernel with current boot parameters:

kexec -l {{path/to/kernel}} --initrd={{path/to/initrd}} --reuse-cmdline

• Execute a currently loaded kernel:

kexec -e

• Unload current kexec target kernel:

kexec -u