When do startup scripts run?

[edwin.evans]

What is the ordering of the startup scripts? What is the difference between /etc/init.d and /etc/rc.d? Will the init.d scripts always run before the /root/Startup scripts or is it nondeterministic? Thanks!

[rcrsn51]

What is the ordering of the startup scripts? What is the difference between /etc/init.d and /etc/rc.d? Will the init.d scripts always run before the /root/Startup scripts or is it nondeterministic? Thanks!

If you look through the file /etc/rc.d/rc.sysinit, you can get an idea of the order.

The problem is that many of the processes are started in the background, so there is no guarantee that Process A is completed before Process B is started.