On Tue, Apr 12, 2016 at 04:54:32PM +0300, Jack L. Frost wrote:
>
> There should be no reaso systemd would not work like that. exec places it right
> at the top of the process tree. I'm now curious to test this. Will do later.

Just tested: after booting with /bin/bash as init in a fresh default Arch Linux
install, I've been able to exec /usr/lib/systemd/systemd with no apparent
problems.