- D.1. /etc/rc.d/init.d/rc -

- Скрипт rc это первый скрипт, - вызываемый системой инициализации init и инициирующий процесс загрузки. -
#!/bin/bash
-########################################################################
-# Begin rc
-#
-# Description : Main Run Level Control Script
-#
-# Authors     : Gerard Beekmans  - gerard@linuxfromscratch.org
-#             : DJ Lucas - dj@linuxfromscratch.org
-# Updates     : Bruce Dubbs - bdubbs@linuxfromscratch.org
-#             : Pierre Labastie - pierre@linuxfromscratch.org
-#
-# Version     : LFS 7.0
-#
-# Notes       : Updates March 24th, 2022: new semantics of S/K files
-#               - Instead of testing that S scripts were K scripts in the
-#                 previous runlevel, test that they were not S scripts
-#               - Instead of testing that K scripts were S scripts in the
-#                 previous runlevel, test that they were not K scripts
-#               - S scripts in runlevel 0 or 6 are now run with
-#                "script start" (was "script stop" previously).
-########################################################################
-
-. /lib/lsb/init-functions
-
-print_error_msg()
-{
-   log_failure_msg
-   # $i is set when called
-   MSG="FAILURE:\n\nYou should not be reading this error message.\n\n"
-   MSG="${MSG}It means that an unforeseen error took place in\n"
-   MSG="${MSG}${i},\n"
-   MSG="${MSG}which exited with a return value of ${error_value}.\n"
-
-   MSG="${MSG}If you're able to track this error down to a bug in one of\n"
-   MSG="${MSG}the files provided by the ${DISTRO_MINI} book,\n"
-   MSG="${MSG}please be so kind to inform us at ${DISTRO_CONTACT}.\n"
-   log_failure_msg "${MSG}"
-
-   log_info_msg "Press Enter to continue..."
-   wait_for_user
-}
-
-check_script_status()
-{
-   # $i is set when called
-   if [ ! -f ${i} ]; then
-      log_warning_msg "${i} is not a valid symlink."
-      SCRIPT_STAT="1"
-   fi
-
-   if [ ! -x ${i} ]; then
-      log_warning_msg "${i} is not executable, skipping."
-      SCRIPT_STAT="1"
-   fi
-}
-
-run()
-{
-   if [ -z $interactive ]; then
-      ${1} ${2}
-      return $?
-   fi
-
-   while true; do
-      read -p "Run ${1} ${2} (Yes/no/continue)? " -n 1 runit
-      echo
-
-      case ${runit} in
-         c | C)
-            interactive=""
-            ${i} ${2}
-            ret=${?}
-            break;
-            ;;
-
-         n | N)
-            return 0
-            ;;
-
-         y | Y)
-            ${i} ${2}
-            ret=${?}
-            break
-            ;;
-      esac
-   done
-
-   return $ret
-}
-
-# Read any local settings/overrides
-[ -r /etc/sysconfig/rc.site ] && source /etc/sysconfig/rc.site
-
-DISTRO=${DISTRO:-"Linux From Scratch"}
-DISTRO_CONTACT=${DISTRO_CONTACT:-"lfs-dev@lists.linuxfromscratch.org (Registration required)"}
-DISTRO_MINI=${DISTRO_MINI:-"LFS"}
-IPROMPT=${IPROMPT:-"no"}
-
-# These 3 signals will not cause our script to exit
-trap "" INT QUIT TSTP
-
-[ "${1}" != "" ] && runlevel=${1}
-
-if [ "${runlevel}" == "" ]; then
-   echo "Usage: ${0} <runlevel>" >&2
-   exit 1
-fi
-
-previous=${PREVLEVEL}
-[ "${previous}" == "" ] && previous=N
-
-if [ ! -d /etc/rc.d/rc${runlevel}.d ]; then
-   log_info_msg "/etc/rc.d/rc${runlevel}.d does not exist.\n"
-   exit 1
-fi
-
-if [ "$runlevel" == "6" -o "$runlevel" == "0" ]; then IPROMPT="no"; fi
-
-# Note: In ${LOGLEVEL:-7}, it is ':' 'dash' '7', not minus 7
-if [ "$runlevel" == "S" ]; then
-   [ -r /etc/sysconfig/console ] && source /etc/sysconfig/console
-   dmesg -n "${LOGLEVEL:-7}"
-fi
-
-if [ "${IPROMPT}" == "yes" -a "${runlevel}" == "S" ]; then
-   # The total length of the distro welcome string, without escape codes
-   wlen=${wlen:-$(echo "Welcome to ${DISTRO}" | wc -c )}
-   welcome_message=${welcome_message:-"Welcome to ${INFO}${DISTRO}${NORMAL}"}
-
-   # The total length of the interactive string, without escape codes
-   ilen=${ilen:-$(echo "Press 'I' to enter interactive startup" | wc -c )}
-   i_message=${i_message:-"Press '${FAILURE}I${NORMAL}' to enter interactive startup"}
-
-
-   # dcol and icol are spaces before the message to center the message
-   # on screen. itime is the amount of wait time for the user to press a key
-   wcol=$(( ( ${COLUMNS} - ${wlen} ) / 2 ))
-   icol=$(( ( ${COLUMNS} - ${ilen} ) / 2 ))
-   itime=${itime:-"3"}
-
-   echo -e "\n\n"
-   echo -e "\\033[${wcol}G${welcome_message}"
-   echo -e "\\033[${icol}G${i_message}${NORMAL}"
-   echo ""
-   read -t "${itime}" -n 1 interactive 2>&1 > /dev/null
-fi
-
-# Make lower case
-[ "${interactive}" == "I" ] && interactive="i"
-[ "${interactive}" != "i" ] && interactive=""
-
-# Read the state file if it exists from runlevel S
-[ -r /run/interactive ] && source /run/interactive
-
-# Stop all services marked as K, except if marked as K in the previous
-# runlevel: it is the responsibility of the script to not try to kill
-# a non running service
-if [ "${previous}" != "N" ]; then
-   for i in $(ls -v /etc/rc.d/rc${runlevel}.d/K* 2> /dev/null)
-   do
-      check_script_status
-      if [ "${SCRIPT_STAT}" == "1" ]; then
-         SCRIPT_STAT="0"
-         continue
-      fi
-
-      suffix=${i#/etc/rc.d/rc${runlevel}.d/K[0-9][0-9]}
-      [ -e /etc/rc.d/rc${previous}.d/K[0-9][0-9]$suffix ] && continue
-
-      run ${i} stop
-      error_value=${?}
-
-      if [ "${error_value}" != "0" ]; then print_error_msg; fi
-   done
-fi
-
-if [ "${previous}" == "N" ]; then export IN_BOOT=1; fi
-
-if [ "$runlevel" == "6" -a -n "${FASTBOOT}" ]; then
-   touch /fastboot
-fi
-
-
-# Start all services marked as S in this runlevel, except if marked as
-# S in the previous runlevel
-# it is the responsibility of the script to not try to start an already running
-# service
-for i in $( ls -v /etc/rc.d/rc${runlevel}.d/S* 2> /dev/null)
-do
-
-   if [ "${previous}" != "N" ]; then
-      suffix=${i#/etc/rc.d/rc${runlevel}.d/S[0-9][0-9]}
-      [ -e /etc/rc.d/rc${previous}.d/S[0-9][0-9]$suffix ] && continue
-   fi
-
-   check_script_status
-   if [ "${SCRIPT_STAT}" == "1" ]; then
-      SCRIPT_STAT="0"
-      continue
-   fi
-
-   run ${i} start
-
-   error_value=${?}
-
-   if [ "${error_value}" != "0" ]; then print_error_msg; fi
-done
-
-# Store interactive variable on switch from runlevel S and remove if not
-if [ "${runlevel}" == "S" -a "${interactive}" == "i" ]; then
-    echo "interactive=\"i\"" > /run/interactive
-else
-    rm -f /run/interactive 2> /dev/null
-fi
-
-# Copy the boot log on initial boot only
-if [ "${previous}" == "N" -a  "${runlevel}" != "S" ]; then
-   cat $BOOTLOG >> /var/log/boot.log
-
-   # Mark the end of boot
-   echo "--------" >> /var/log/boot.log
-
-   # Remove the temporary file
-   rm -f $BOOTLOG 2> /dev/null
-fi
-
-# End rc
-
- Линукс с нуля - Версия 12.1 -

- Приложение D. Скрипты загрузки и настройки системы-20230728 -

- D.1. /etc/rc.d/init.d/rc -
