On Jul 22, 2017, at 8:28 AM, Andrew Holway <andrew.hol...@gmail.com> wrote:
> I want to run a script before systemd starts doing stuff but I cant find
> anything online about how that could happen. It seems /etc/rc.local is
> depreciated now?

You can’t run anything before systemd starts, since it is started by the kernel 
before the local filesystems have been mounted.

/etc/rc.d/rc.local still runs, but it is a systemd service run as 
rc-local.service, contingent on /etc/rc.d/rc.local existing and being 
executable.

Now, if you want to run something before systemd starts other services, you 
need to create your own systemd unit, and set up dependencies such that the 
service starts before those services.  For example, you’d put 
"Before=network-pre.target” in the [Unit] section if you wanted your service to 
start before the network was brought up.  For what it’s worth, rc-local.service 
has a dependency that actually starts it *after* the network service comes up, 
so it starts later in the startup anyway.


--
Jonathan Billings <billi...@negate.org>


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