Here is the situation:
I have a Lenovo ThinkCentre M900 with Linux CentOS 7.
I tried to do a kernel load (kexec -l + kexec -e), and it works fine, with one problem.
As soon as I enter the kexec -e command, the Server starts a long alarm beep which sadly doesn't stop.
Am I doing something wrong ? How to reload the kernel without really rebooting ?