Realized that renaming the src directory for the version changes was a bad
idea... This makes it hard to track changes. For now they will sit in a versionless directory and some other methods should be devised for versioning
This commit is contained in:
228
SRC/initscripts/etc/init.d/rc
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228
SRC/initscripts/etc/init.d/rc
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#!/bin/bash
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########################################################################
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# Begin rc
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#
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# Description : Main Run Level Control Script
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#
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# Authors : Gerard Beekmans - gerard@linuxfromscratch.org
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# : DJ Lucas - dj@linuxfromscratch.org
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# Update : Bruce Dubbs - bdubbs@linuxfromscratch.org
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#
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# Version : LFS 7.0
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#
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########################################################################
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. /lib/lsb/init-functions
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print_error_msg()
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{
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log_failure_msg
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# $i is set when called
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MSG="FAILURE:\n\nYou should not be reading this error message.\n\n"
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MSG="${MSG}It means that an unforeseen error took place in\n"
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MSG="${MSG}${i},\n"
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MSG="${MSG}which exited with a return value of ${error_value}.\n"
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MSG="${MSG}If you're able to track this error down to a bug in one of\n"
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MSG="${MSG}the files provided by the files provided by\n"
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MSG="${MSG}the ${DISTRO_MINI} book, please be so kind to inform us at\n"
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MSG="${MSG}${DISTRO_CONTACT}.\n"
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log_failure_msg "${MSG}"
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log_info_msg "Press Enter to continue..."
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wait_for_user
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}
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check_script_status()
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{
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# $i is set when called
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if [ ! -f ${i} ]; then
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log_warning_msg "${i} is not a valid symlink."
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continue
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fi
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if [ ! -x ${i} ]; then
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log_warning_msg "${i} is not executable, skipping."
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continue
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fi
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}
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run()
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{
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if [ -z $interactive ]; then
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${1} ${2}
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return $?
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fi
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while true; do
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read -p "Run ${1} ${2} (Yes/no/continue)? " -n 1 runit
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echo
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case ${runit} in
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c | C)
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interactive=""
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${i} ${2}
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ret=${?}
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break;
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;;
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n | N)
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return 0
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;;
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y | Y)
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${i} ${2}
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ret=${?}
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break
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;;
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esac
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done
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return $ret
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}
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DISTRO=${DISTRO:-"Snaplinux"}
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DISTRO_CONTACT=${DISTRO_CONTACT:-"jlarson@snaplinux.org"}
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DISTRO_MINI=${DISTRO_MINI:-"Snap"}
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IPROMPT=${IPROMPT:-"no"}
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echo "0 0 0 0" > /proc/sys/kernel/printk
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# These 3 signals will not cause our script to exit
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trap "" INT QUIT TSTP
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[ "${1}" != "" ] && runlevel=${1}
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if [ "${runlevel}" == "" ]; then
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echo "Usage: ${0} <runlevel>" >&2
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exit 1
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fi
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previous=${PREVLEVEL}
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[ "${previous}" == "" ] && previous=N
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if [ ! -d /etc/rc${runlevel}.d ]; then
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log_info_msg "/etc/rc${runlevel}.d does not exist.\n"
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exit 1
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fi
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if [ "$runlevel" == "6" -o "$runlevel" == "0" ]; then IPROMPT="no"; fi
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# Note: In ${LOGLEVEL:-7}, it is ':' 'dash' '7', not minus 7
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if [ "$runlevel" == "S" ]; then
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[ -r /etc/default/console ] && source /etc/default/console
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dmesg -n "${LOGLEVEL:-7}"
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fi
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if [ "${IPROMPT}" == "yes" -a "${runlevel}" == "S" ]; then
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# The total length of the distro welcome string, without escape codes
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wlen=${wlen:-$(echo "Welcome to ${DISTRO}" | wc -c )}
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welcome_message=${welcome_message:-"Welcome to ${INFO}${DISTRO}${NORMAL}"}
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# The total length of the interactive string, without escape codes
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ilen=${ilen:-$(echo "Press 'I' to enter interactive startup" | wc -c )}
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i_message=${i_message:-"Press '${FAILURE}I${NORMAL}' to enter interactive startup"}
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# dcol and icol are spaces before the message to center the message
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# on screen. itime is the amount of wait time for the user to press a key
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wcol=$(( ( ${COLUMNS} - ${wlen} ) / 2 ))
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icol=$(( ( ${COLUMNS} - ${ilen} ) / 2 ))
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itime=${itime:-"3"}
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echo -e "\n\n"
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echo -e "\\033[${wcol}G${welcome_message}"
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echo -e "\\033[${icol}G${i_message}${NORMAL}"
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echo ""
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read -t "${itime}" -n 1 interactive 2>&1 > /dev/null
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fi
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# Make lower case
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[ "${interactive}" == "I" ] && interactive="i"
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[ "${interactive}" != "i" ] && interactive=""
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# Read the state file if it exists from runlevel S
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[ -r /var/run/interactive ] && source /var/run/interactive
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# Attempt to stop all services started by the previous runlevel,
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# and killed in this runlevel
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if [ "${previous}" != "N" ]; then
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for i in $(ls -v /etc/rc${runlevel}.d/K* 2> /dev/null)
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do
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check_script_status
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suffix=${i#/etc/rc$runlevel.d/K[0-9][0-9]}
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prev_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
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sysinit_start=/etc/rcS.d/S[0-9][0-9]$suffix
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if [ "${runlevel}" != "0" -a "${runlevel}" != "6" ]; then
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if [ ! -f ${prev_start} -a ! -f ${sysinit_start} ]; then
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MSG="WARNING:\n\n${i} can't be "
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MSG="${MSG}executed because it was not "
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MSG="${MSG}not started in the previous "
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MSG="${MSG}runlevel (${previous})."
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log_warning_msg "$MSG"
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continue
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fi
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fi
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run ${i} stop
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error_value=${?}
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if [ "${error_value}" != "0" ]; then print_error_msg; fi
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done
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fi
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if [ "${previous}" == "N" ]; then export IN_BOOT=1; fi
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if [ "$runlevel" == "6" -a -n "${FASTBOOT}" ]; then
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touch /fastboot
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fi
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# Start all functions in this runlevel
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for i in $( ls -v /etc/rc${runlevel}.d/S* 2> /dev/null)
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do
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if [ "${previous}" != "N" ]; then
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suffix=${i#/etc/rc$runlevel.d/S[0-9][0-9]}
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stop=/etc/rc$runlevel.d/K[0-9][0-9]$suffix
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prev_start=/etc/rc$previous.d/S[0-9][0-9]$suffix
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[ -f ${prev_start} -a ! -f ${stop} ] && continue
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fi
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check_script_status
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case ${runlevel} in
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0|6)
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run ${i} stop
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;;
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*)
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run ${i} start
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;;
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esac
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error_value=${?}
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if [ "${error_value}" != "0" ]; then print_error_msg; fi
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done
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# Store interactive variable on switch from runlevel S and remove if not
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if [ "${runlevel}" == "S" -a "${interactive}" == "i" ]; then
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echo "interactive=\"i\"" > /var/run/interactive
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else
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rm -f /var/run/interactive 2> /dev/null
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fi
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# Copy the boot log on initial boot only
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if [ "${previous}" == "N" -a "${runlevel}" != "S" ]; then
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cat $BOOTLOG >> /var/log/boot.log
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# Mark the end of boot
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echo "--------" >> /var/log/boot.log
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# Remove the temporary file
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rm -f $BOOTLOG 2> /dev/null
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fi
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# End rc
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