Changes for page Openwrt Notes

Last modified by Leon Poon on 2019/11/02 17:53
From version 4.1
edited by Leon Poon
on 2019/01/05 15:28
Change comment: There is no comment for this version
To version 2.1
edited by Leon Poon
on 2019/01/05 14:46
Change comment: There is no comment for this version

Summary

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... ... @@ -8,37 +8,13 @@
8 8  
9 9  /sbin/init is ELF comes from procd package. What it does (as pid=1):
10 10  
11 -* early (different from procd early):
11 +* early:
12 12  ** mount /proc, /sysfs, and create /dev nodes, create /tmp subdirs etc
13 13  ** set PATH
14 -* kmodloader in subprocess (waits until done)
14 +* kmodloader in subprocess
15 15  * preinit
16 16  ** plugd in subprocess (seem to deal with firmware)
17 17  ** /etc/preinit in subprocess
18 18  * when /etc/preinit is done then it execvp the "real" /sbin/procd
19 19  
20 -
21 -
22 -procd states:
23 -
24 -* early (first state):
25 -** coldplug (remount /dev, etc)
26 -*** start udevtrigger in subproc
27 -*** when udevtrigger completes, hotplug
28 -*** when hotplug completes, next state (ubus)
29 -* ubus:
30 -** start attempts to connect to ubs
31 -** start ubus as service
32 -** once connection's done then next state (init)
33 -* init - read /etc/inittab and run:
34 -** respawn - things that need to keep rerunning once quitted
35 -** askconsole
36 -** askfirst - the "Press Enter to activate this console" message
37 -** sysinit - (usually /etc/init.d/rcS with S) and then next state (running)
38 -* running - waits for shutdown signal (usr1/usr2) or reboot (int/term)
39 -* shutdown
40 -** runs shutdown command per inittab (also /etc/init.d/rcS but with K)
41 -** when done next state (halt)
42 -* halt - kill everything and either enter sleep loop or reboots
43 -
44 44