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diff --git a/chapter07/rc.xml b/chapter07/rc.xml deleted file mode 100644 index 8f9794691..000000000 --- a/chapter07/rc.xml +++ /dev/null @@ -1,251 +0,0 @@ -<sect1 id="ch07-rc"> -<title>Creating the rc script</title> -<?dbhtml filename="rc.html" dir="chapter07"?> - -<para>The first main boot script is the <filename>/etc/init.d/rc</filename> -script. Create the <filename>/etc/init.d/rc</filename> script by running the -following command:</para> - -<para><screen><userinput>cat > /etc/init.d/rc << "EOF"</userinput> -#!/bin/sh -# Begin /etc/init.d/rc -# -# By Jason Pearce - jason.pearce@linux.org -# Modified by Gerard Beekmans - gerard@linuxfromscratch.org -# print_error_msg based on ideas by Simon Perreault - -# nomis80@videotron.ca -# - -# -# Include the functions declared in the /etc/init.d/functions file -# - -source /etc/init.d/functions - -# -# The print_error_msg function prints an error message when an unforeseen -# error occurred that wasn't trapped for some reason by a evaluate_retval -# call or error checking in different ways. - -print_error_msg() -{ - - echo - $FAILURE - echo -n "You should not read this error message. It means " - echo "that an unforeseen error " - echo -n "took place and subscript $i exited with " - echo "a return value " - echo -n "of $error_value for an unknown reason. If you're able " - echo "to trace this error down " - echo -n "to a bug in one of the files provided by this book, " - echo "please be so kind to " - echo -n "inform us at lfs-dev@linuxfromscratch.org" - $NORMAL - echo - echo - echo "Press a key to continue..." - read - -} - -# -# If you uncomment the debug variable below none of the scripts will be -# executed, just the script name and parameters will be echo'ed to the -# screen so you can see how the scripts are called by rc. -# - -# Un-comment the following for debugging. -# debug=echo - -# -# Start script or program. -# -startup() { - - $debug "$@" - -} - -# -# Ignore CTRL-C only in this shell, so we can interrupt subprocesses. -# - -trap ":" INT QUIT TSTP - -# -# Now find out what the current and what the previous runlevel are. The -# $RUNLEVEL variable is set by init for all it's children. This script -# runs as a child of init. -# - -runlevel=$RUNLEVEL - -# -# Get first argument. Set new runlevel to this argument. If no runlevel -# was passed to this script we won't change runlevels. -# - -[ "$1" != "" ] && runlevel=$1 -if [ "$runlevel" = "" ] -then - echo "Usage: $0 <runlevel>" >&2 - exit 1 -fi - -# -# The same goes for $PREVLEVEL (see above for $RUNLEVEL). previous will -# be set to the previous run level. If $PREVLEVEL is not set it means -# that there is no previous runlevel and we'll set previous to N. -# - -previous=$PREVLEVEL -[ "$previous" = "" ] && previous=N - -export runlevel previous - -# -# Is there an rc directory for the new runlevel? -# - -if [ -d /etc/rc$runlevel.d ] - -then - -# -# If so, first collect all the K* scripts in the new run level. -# - - if [ $previous != N ] - then - for i in /etc/rc$runlevel.d/K* - do - [ ! -f $i ] && continue - -# -# the suffix variable will contain the script name without the leading -# Kxxx -# - - suffix=${i#/etc/rc$runlevel.d/K[0-9][0-9][0-9]} -# -# If there is a start script for this K script in the previous runlevel -# determine what it's full path is -# - previous_start=/etc/rc$previous.d/S[0-9][0-9][0-9]$suffix -# -# If there was no previous run level it could be that something was -# started in rcS.d (sysinit level) so we'll determine the path for that -# possibility as well. -# - - sysinit_start=/etc/rcS.d/S[0-9][0-9][0-9]$suffix - -# -# Stop the service if there is a start script in the previous run level -# or in the sysinit level. If previous_start or sysinit_start do not -# exist the 'continue' command is run which causes the script to abort -# this iteration of the for loop and continue with the next iteration. -# This boils down to that it won't run the commands after the next two -# lines and start over from the top of this for loop. See man bash for -# more info on this. -# - - [ ! -f $previous_start ] && - [ ! -f $sysinit_start ] && continue - -# -# If we found previous_start or sysinit_start, run the K script -# - - startup $i stop - error_value=$? -# -# If the return value of the script is not 0, something went wrong with -# error checking inside the script. the print_error_msg function will be -# called and the message plus the return value of the K script will be -# printed to the screen -# - - if [ $error_value != 0 ] - then - print_error_msg - fi - - done - fi - -# -# Now run the START scripts for this runlevel. -# - - for i in /etc/rc$runlevel.d/S* - do - [ ! -f $i ] && continue - - if [ $previous != N ] - then -# -# Find start script in previous runlevel and stop script in this -# runlevel. -# - - suffix=${i#/etc/rc$runlevel.d/S[0-9][0-9][0-9]} - stop=/etc/rc$runlevel.d/K[0-9][0-9][0-9]$suffix - previous_start=/etc/rc$previous.d/S[0-9][0-9][0-9]$suffix -# -# If there is a start script in the previous level and no stop script in -# this level, we don't have to re-start the service; abort this -# iteration and start the next one. -# - - [ -f $previous_start ] && [ ! -f $stop ] && - continue - fi - - case "$runlevel" in - 0|6) - -# -# levels 0 and 6 are halt and reboot levels. We don't really start -# anything here so we call with the 'stop' parameter -# - - startup $i stop - error_value=$? -# -# If the return value of the script is not 0, something went wrong with -# error checking inside the script. the print_error_msg function will be -# called and the message plus the return value of the K script will be -# printed to the screen -# - - if [ $error_value != 0 ] - then - print_error_msg - fi - ;; - *) - startup $i start - error_value=$? -# -# If the return value of the script is not 0, something went wrong with -# error checking inside the script. the print_error_msg function will be -# called and the message plus the return value of the K script will be -# printed to the screen -# - - if [ $error_value != 0 ] - then - print_error_msg - fi - ;; - esac - done -fi - -# End /etc/init.d/rc -<userinput>EOF</userinput></screen></para> - -</sect1> - |