I'm looking at a static OpenWrt firmware.
On OpenWrt initialization, procd is supposed to run all the S prefixed scripts in /etc/rc.d which are links to the actual scripts in /etc/init.d. I wonder who triggers those scripts...
I see that on /etc/inittab there's this line ::sysinit:/etc/init.d/rcS S boot but /etc/init.d/rcS file does not exist, so who actually runs the scripts on /etc/rc.d and when does it happen on init?
I tried searching all over their documentation but still could not figure this out... Any ideas?
Thanks.
Hi the openwrt using the program procd to run the /etc/init.d/* to init the all system. The boot sequence of openwrt is:
/init - > /sbin/init -> /etc/preinit -> /sbin/procd -> /etc/rc.d/*
Actually openwrt always support the rcS, but openwrt didn't use this feature.