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发表于 2005-1-17 08:19:15
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让我来把启动要执行的几个文件贴出来吧.看不懂的再由高手们解释吧.第一个要执行的文件:inittab
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::sysinit:/etc/rc.d/rc.sysinit::respawn:/sbin/getty 38400 tty1tty2::respawn:/sbin/getty 38400 tty2tty3::respawn:/sbin/getty 38400 tty3
第二个要执行的文件:rc.sysinit
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#!/bin/sh## rc.sysinit - unpacks additional archives and starts system# scripts#install_config() { if [ ! -r "$MNT/config/$1" ]; then return fi cat $MNT/config/$1 | dos2unix -u > /etc/coyote/$2 chmod 600 /etc/coyote/$2 chown root.root /etc/coyote/$2}#Uncomment for debug mode (don't suppress STDOUT and STDERR)#DEBUG=1if [ $DEBUG ]; then qt () { "$@"; }else qt () { "$@" >>/linuxrc.err 2>&1; }fisource () { . $@; }qt mount -t proc /proc /proc#qt mount -t devfs none /devSYM="-s"VERSION="`cat /var/lib/lrpkg/root.version`"qt mkdir /devqt mkdir /dev/inetqt mkdir /tmpqt mkdir /mntqt mkdir /var/lockqt mkdir /var/runqt mkdir /usrqt mkdir /usr/binMNT="/var/lib/lrpkg/mnt"qt mkdir $MNTqt ln -s /tmp /var/tmpqt ln -s /tmp /usr/tmp# Have busybox create the symbolic links/bin/busybox --install -s. /var/lib/lrpkg/root.dev.mk#Incase makedev fails, maybe we can recover#qt mknod /dev/tty1 c 4 1#Set some permissionschmod 1777 /var/lockchmod 1777 /tmp#Clear this fileecho "root">/var/lib/lrpkg/packages#Query /proc/cmdline line for a 'boot' option.#This will solve the chicken and egg problem of specing boot devices#not in root.mount. Falls back to root.mount (and /proc/filesystems)#if boot= entry fails. IE boot=/dev/device[,filesystem]DEVICE="`sed s/.*boot=// /proc/cmdline`"#Coyote only supports MS-DOS formatted floppiesFSTYPE="`echo $DEVICE | sed s/\ /,/ | cut -f 2 -d ,`"DEVICE="`echo $DEVICE | cut -f 1 -d ,`"echo "Using: $DEVICE as boot device with $FSTYPE filesystem."echo $FSTYPE > /var/lib/lrpkg/boot.fstypeln -sf $DEVICE /dev/bootqt mount -o ro -t $FSTYPE $DEVICE $MNTif [ $? -ne 0 ]; then echo "LINUXRC: Could not mount the boot device. Can't install packages." sh exit 1fi# Install the additional software packagesif [ -f /var/lib/lrpkg/root.packages ]; then cat /var/lib/lrpkg/root.packages > /tmp/pkg.listfi# Build a list of all non-root packagesfor F in `ls $MNT/*.tgz`; do F=`basename $F .tgz` if [ -z "`grep $F /tmp/pkg.list`" ] && [ "$F" != "root" ]; then echo $F >> /tmp/pkg.list fidoneif [ -f /tmp/pkg.list ]; then echo -n "Installing packages: " OIFS=$IFS; IFS=',' cat /tmp/pkg.list | while read f; do if [ ! -z "$f" ]; then if [ -f $MNT/$f.tgz ]; then qt gunzip -t $MNT/$f.tgz > /dev/null if [ $? -eq 0 ]; then echo -n " $f" tar -xzf $MNT/$f.tgz echo "$f">>/var/lib/lrpkg/packages #Update installed packages file else echo -n " $f(cpt!)" fi else echo -n " $f(nf!)" fi fi done IFS=$OIFS echo " - Finished." rm -f /tmp/pkg.listelse echo "Package list is empty. Can't install packages."fiinstall_config coyote.cfg coyote.confinstall_config firewall.cfg firewallinstall_config portfw.cfg portforwardsinstall_config fireloc.cfg firewall.localinstall_config qosfilt.cfg qos.filtersinstall_config qosclass.cfg qos.classesinstall_config hosts.dns ../hosts.dnsinstall_config reserve.cfg ../dhcpd.reservations#We need to set permissons after etc is installed, so it sets owner and#group correctly. (No /etc/passwd and /etc/group on the first run). /var/lib/lrpkg/root.dev.own. /var/lib/lrpkg/root.dev.modqt umount $MNTrm /linuxrc.err#echo "Leaving LINUXRC"# sysinit completed. Start sysconfig/etc/rc.d/rc.S
执行完rc.sysinit后,再执行rc.S
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#! /bin/sh## Coyote single user startup scriptPATH=/sbin:/bin:/usr/sbin:/usr/binumask 022## Trap CTRL-C &c only in this shell so we can interrupt subprocesses.#trap ":" 2 3 20# Mount devptsmount -t devpts devpts /dev/pts# Load the modulesif [ -x /etc/rc.d/rc.modules ]; then . /etc/rc.d/rc.modulesfi# Clean up /var/run and create /var/run/utmp so that we can login.: > /var/run/utmp# Set pseudo-terminal access permissions.chmod 666 /dev/tty[p-za-e][0-9a-f]chown root.tty /dev/tty[p-za-e][0-9a-f]# Start the software watchdogecho "Starting software watchdog..."insmod softdog/sbin/watchdog -t 30 /dev/watchdog# Start the Multi-user configuration/etc/rc.d/rc.M
在rc.S中再调用/etc/rc.d/rc.modules,执行硬件驱动,来驱动网卡等.最后执行/etc/rc.d/rc.M,从coyote.cfg中读取系统设置,初始化网络服务等 .
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#!/bin/sh## Coyote init scriptecho "Starting network subsystems..."# Start the inet systemif [ ! -f /etc/coyote/coyote.conf ]; then echo echo "-------------------------ERROR--------------------------" echo "This Coyote boot disk does not appear to have been" echo "properly configured. The network subsystem can not be" echo "configured. Please rerun the Coyote Disk Creator." echo "--------------------------------------------------------" echo exitfi# Ensure basic filesystem sanitychmod 755 /chmod 1777 /tmp# Load the coyote configuration file. /etc/coyote/coyote.confCONFIG_LOADED=YES# Configure the root passwordif [ ! -z "$ADMIN_AUTH" ]; then if [ -r /etc/shadow.tmp ]; then rm /etc/shadow.tmp fi touch /etc/shadow.tmp chown root.root /etc/shadow.tmp chmod 600 /etc/shadow.tmp echo "root:\$1\$\$${ADMIN_AUTH}:10091:0:99999:7:::" >> /etc/shadow.tmp grep -v root: /etc/shadow >> /etc/shadow.tmp rm /etc/shadow mv /etc/shadow.tmp /etc/shadowfi# Check for the SSH host keysif [ ! -r /etc/dropbear_dss_host_key ]; then /usr/sbin/ssh-keygen -t dss -f /etc/dropbear_dss_host_key NEW_KEYS=YES touch /tmp/need.savefiif [ ! -r /etc/dropbear_rsa_host_key ]; then /usr/sbin/ssh-keygen -t rsa -f /etc/dropbear_rsa_host_key NEW_KEYS=YES touch /tmp/need.savefi# Set the system clockif [ -z "$TZ" ]; then TZ="$(cat /etc/timezone)" echo "TZ=$TZ" >> /etc/coyote/coyote.confelse echo "$TZ" > /etc/timezonefiexport TZ# Set the clock using biosif [ -x /sbin/hwclock ]; then /sbin/hwclock -s -lfi# System loggersSYSLOG_OPTS="-m 0 -C "if [ ! -z "$LOGGING_HOST" ]; then SYSLOG_OPTS="$SYSLOG_OPTS -L -R $LOGGING_HOST" # If remote logging is requested, delay until after the network # is upfi#Create the wellcome screen. /usr/sbin/mkissue.sh# Start the network. /etc/rc.d/rc.inet# Start any additional packages that were addedecho "Starting addon packages..."SAVEDIR=`pwd`cd /etc/rc.d/pkgsfor RCS in `ls rc.*`; do if [ -x $RCS ]; then . /etc/rc.d/pkgs/$RCS fidonecd $SAVEDIRecho "Starting local packages..."# Start any misc local commandsif [ -x /etc/rc.d/rc.local ]; then . /etc/rc.d/rc.localfiif [ "$NEW_KEYS" = "YES" ]; then /usr/sbin/lrcfg.back etcfi
至此系统启动完成... |
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