Question

I need to reboot a Linux box from a user space process. I want to have the following behavior:

1. sync file systems
2. not attempt to gracefully stop processes, go to runlevel 5/6, etc., for I assume things are bad and that would fail

Can those requirements be achieved together at all?

I was planning to write a ‘b’ into proc/sysrq-trigger. Is there a better way? (No, that won’t give me sync.)

Thanks!

Answer 1

Well, do sync(1), kill -1, sync again, kill -9 -1, sync, poweroff -f.

That should do the trick, I guess!