The /etc/rc.d/rc.local script is
executed by the init command at boot time
or when changing runlevels. Adding commands to the bottom of this
script is an easy way to perform necessary tasks like starting
special services or initialize devices without writing complex
initialization scripts in the /etc/rc.d/init.d/ directory and creating symbolic
links.
The /etc/rc.serial script is used if
serial ports must be setup at boot time. This script runs
setserial commands to configure the
system's serial ports. Refer to the setserial man page for more information.
