Hello Simon, I think the --load-preserve-context and --load-jump-back-helper kexec options are not working on s390 because we do not support CONFIG_KEXEC_JUMP. I assume the same is true also on other architectures. Correct me, if I am wrong. Unfortunately I did not find much documentation for that feature. Wouldn't it be better to print an error message when the options are used on those architectures? Michael