slitaz-boot-scripts annotate etc/init.d/rcS @ rev 304

Faster system clean up
author Christophe Lincoln <pankso@slitaz.org>
date Fri Jun 01 22:35:36 2012 +0200 (2012-06-01)
parents 445b09ea0b07
children 38802b3f2923
rev   line source
pankso@5 1 #!/bin/sh
pankso@302 2 #
pankso@302 3 # /etc/init.d/rcS : Initial boot script for SliTaz GNU/Linux
pankso@302 4 # Configuration file : /etc/rcS.conf
pankso@5 5 #
pankso@153 6 # rcS is the main initialization script used to check fs, mount, clean,
pankso@153 7 # run scripts and start daemons.
pankso@5 8 #
pankso@5 9 . /etc/init.d/rc.functions
pankso@5 10 . /etc/rcS.conf
pankso@5 11
pankso@302 12 # Set PATH, TZ and boot time.
pankso@302 13 export PATH=/bin:/sbin:/usr/bin:/usr/sbin
pankso@262 14 [ -s /etc/TZ ] && export TZ="$(cat /etc/TZ)"
pankso@302 15 [ -n "$bootdate" ] || bootdate=$(date +%s)
pankso@187 16
pascal@276 17 case "$1" in
pascal@276 18
pascal@276 19 readonly)
pankso@246 20
pankso@302 21 colorize 34 "Processing /etc/init.d/rcS..."
pankso@171 22
pankso@171 23 # Mount /proc.
pankso@171 24 echo -n "Mounting proc filesystem..."
pankso@302 25 mount proc && status
pankso@302 26
pankso@302 27 # Mount /run as tmpfs to avoid pidfile and other runtime data behing
pankso@302 28 # writting to disk.
pankso@302 29 echo -n "Mounting tmpfs filesystem on: /run"
pankso@302 30 mount -t tmpfs tmpfs /run
pankso@171 31 status
pankso@171 32
pankso@5 33 # Before mounting filesystems we check fs specified in the file
pankso@5 34 # /etc/rcS.conf and variable $CHECK_FS.
pankso@302 35 if [ "$CHECK_FS" ]; then
pankso@5 36 mount -o remount,ro /
pankso@302 37 for i in $CHECK_FS; do
pankso@302 38 colorize 36 "Checking filesystem: $i"
pankso@302 39 e2fsck -p $i
pankso@5 40 done
pankso@5 41 fi
pankso@5 42
pankso@5 43 # Remount rootfs rw.
pankso@171 44 echo "Remounting rootfs read/write..."
pankso@302 45 mount -o remount,rw /
pascal@276 46 ;;
pascal@276 47
pascal@276 48 readwrite)
pankso@5 49
slaxemulator@247 50 # Trigger Udev and handle hotplug events
slaxemulator@247 51 if [ "$UDEV" = "yes" ]; then
pankso@302 52 echo -n "Mounting devtmpfs filesystem..."
pankso@302 53 mount -t devtmpfs devtmpfs /dev
pankso@302 54 status
pankso@269 55 echo "Starting udev daemon..."
pankso@302 56 udevd --daemon 2>/dev/null
pankso@269 57 echo "Udevadm requesting events from the Kernel..."
slaxemulator@260 58 udevadm trigger
pankso@269 59 echo "Udevadm waiting for the event queue to finish..."
pankso@302 60 udevadm settle --timeout=120
pankso@302 61 # Disable hotplug helper since udevd listen to netlink
pankso@302 62 echo "" > /proc/sys/kernel/hotplug
slaxemulator@247 63 fi
slaxemulator@247 64
MikeDSmith25@107 65 # Mount filesystems in /etc/fstab.
pankso@171 66 echo "Mounting filesystems in fstab..."
pankso@302 67 mount -a
pankso@302 68
pankso@302 69 # Be quiet
pankso@302 70 echo "0 0 0 0" > /proc/sys/kernel/printk
pascal@297 71 ;;
pascal@297 72
pascal@297 73 logged)
pankso@5 74
pankso@157 75 # Store boot messages to log files.
pankso@302 76 dmesg > /var/log/dmesg.log &
pascal@276 77
pascal@276 78 # Parse cmdline args for earlier boot options. All other boot options
pascal@276 79 # are in /etc/init./bootopts.sh.
pascal@276 80 echo -n "Searching for early boot options..."
pankso@302 81 for opt in $(cat /proc/cmdline)
pascal@276 82 do
pascal@276 83 case $opt in
pascal@276 84 modprobe=*)
pascal@276 85 export MODPROBE="yes" ;;
pascal@276 86 config=*)
pascal@276 87 export CONFIG=${opt#config=} ;;
pascal@276 88 *)
pascal@276 89 continue ;;
pascal@276 90 esac
pascal@276 91 done
pascal@276 92 status
pascal@41 93
pankso@304 94 # Clean up the system and set up tmp dirs. Since we mount /run as tmpfs
pankso@304 95 # and have a symlink for /var/run we should have empty directories. But,
pankso@304 96 # some packages may overwrite the link, so make sure we have it.
pankso@157 97 if [ "$CLEAN_UP_SYSTEM" = "yes" ]; then
pankso@171 98 echo -n "Cleaning up the system..."
pankso@304 99 rm -rf /tmp /var/run && ln -s /run /var/run
pankso@304 100 mkdir -p /tmp/.X11-unix /tmp/.ICE-unix /run/dbus
pankso@302 101 chmod -R 1777 /tmp
pankso@157 102 status
pankso@157 103 else
pankso@302 104 echo "System clean up is disabled in: /etc/rcS.conf"
pankso@262 105 fi
pankso@262 106
gokhlayeh@241 107 # Handle kernel cmdline parameter modprobe=<module_list>
pankso@302 108 if [ "$MODPROBE" ]; then
pankso@302 109 MODULES=$(sed -e 's/.* modprobe=\([^ ]*\).*/\1/' -e 's/,/\n/g' < /proc/cmdline)
pankso@15 110 for i in $MODULES; do
pankso@302 111 echo -n "Loading kernel module: $i"
pankso@302 112 modprobe $i
gokhlayeh@241 113 status
pankso@15 114 done
pankso@15 115 fi
pankso@15 116
gokhlayeh@241 117 # Handle kernel cmdline parameter config=<device>,<path> to source a
pankso@5 118 # disk init script
pankso@158 119 if [ -n "$CONFIG" ]; then
pankso@5 120 DEVICE=${CONFIG%,*}
pankso@5 121 SCRIPT=${CONFIG#*,}
pascal@110 122 echo "Probing $DEVICE... "
pankso@302 123 if ! mount -r $DEVICE /mnt; then
pascal@179 124 if echo $DEVICE | grep -Eq "/dev/sd|UUID=|LABEL="; then
pankso@302 125 USBDELAY=$(cat /sys/module/usb_storage/parameters/delay_use)
pascal@110 126 USBDELAY=$((1+$USBDELAY))
pascal@110 127 echo "$DEVICE is potentially a USB device: sleep for $USBDELAY seconds"
pascal@110 128 sleep $USBDELAY
pascal@110 129 fi
pankso@302 130 if ! mount -r $DEVICE /mnt; then
pascal@110 131 CONFIG=""
pascal@110 132 fi
pascal@110 133 fi
pankso@171 134 echo -n "Source $SCRIPT from $DEVICE..."
pascal@110 135 if [ -n "$CONFIG" ]; then
pankso@5 136 . /mnt/$SCRIPT
pankso@302 137 umount /mnt 2> /dev/null || true
pankso@5 138 fi
gokhlayeh@241 139 status
pankso@5 140 fi
pankso@5 141
pankso@302 142 # Mount /proc/bus/usb
pascal@124 143 if [ -d /proc/bus/usb ]; then
pankso@171 144 echo -n "Mounting /proc/bus/usb filesystem..."
pankso@302 145 mount -t usbfs usbfs /proc/bus/usb
pascal@124 146 status
pascal@124 147 fi
pascal@124 148
pankso@302 149 # Start syslogd and klogd
pankso@302 150 echo -n "Starting system log deamon: syslogd..."
pankso@302 151 syslogd -s $SYSLOGD_ROTATED_SIZE && status
pankso@302 152 echo -n "Starting kernel log daemon: klogd..."
pankso@302 153 klogd && status
pankso@262 154
pankso@302 155 # Load all modules listed in config file
pankso@302 156 if [ "$LOAD_MODULES" ]; then
pankso@302 157 colorize 33 "Loading Kernel modules..."
pankso@302 158 for mod in $LOAD_MODULES; do
pankso@302 159 echo -n "Loading module: $mod"
pankso@5 160 modprobe $mod
pankso@302 161 status
pankso@5 162 done
pankso@5 163 fi
pankso@5 164
pankso@153 165 # Detect PCI and USB devices with Tazhw from slitaz-tools. We load
paul@181 166 # kernel modules only at first boot or in LiveCD mode.
pankso@153 167 if [ ! -s /var/lib/detected-modules ]; then
pankso@302 168 tazhw init
pankso@153 169 fi
pankso@153 170
pankso@302 171 # Call udevadm trigger to ensure /dev is fully populate now that all
pankso@262 172 # modules are loaded.
slaxemulator@260 173 if [ "$UDEV" = "yes" ]; then
pankso@302 174 echo -n "Triggering udev events: --action=add"
pankso@302 175 udevadm trigger --action=add
slaxemulator@260 176 status
slaxemulator@260 177 fi
slaxemulator@260 178
pankso@302 179 # Start all scripts specified with $RUN_SCRIPTS
pankso@302 180 for script in $RUN_SCRIPTS; do
pankso@302 181 echo $(colorize 34 "Processing: /etc/init.d/$script")
pankso@302 182 /etc/init.d/$script
pankso@5 183 done
pankso@5 184
pankso@302 185 # Start all daemons specified with $RUN_DAEMONS
pankso@302 186 if [ "$RUN_DAEMONS" ]; then
pankso@302 187 colorize 33 "Starting all daemons..."
pankso@302 188 for daemon in $RUN_DAEMONS; do
pankso@32 189 /etc/init.d/$daemon start
pankso@302 190 done
pankso@5 191 fi
pankso@5 192
pankso@302 193 # Back to a verbose mode
pankso@302 194 (sleep 6 && echo "7 4 1 7" > /proc/sys/kernel/printk) &
pankso@302 195
pankso@302 196 if [ "$MESSAGE" ]; then
pankso@302 197 newline
pankso@302 198 colorize 32 "$MESSAGE"
pankso@302 199 fi
pankso@302 200
pankso@302 201 # Display and log boot time
pankso@187 202 time=$((`date +%s` - $bootdate))
pankso@187 203 echo $time > /var/log/boot-time
pankso@187 204 echo "SliTaz boot time: ${time}s"
pascal@276 205 ;;
pankso@187 206
pascal@276 207 *)
pankso@302 208 # --> readonly --> readwrite --> logged.
pankso@302 209 #if [ ! -s /run/boot.log ]; then
pankso@302 210 #mount -t devpts devpts /dev/pts
pankso@302 211 #mount -t tmpfs tmpfs /run
pankso@302 212 #fi
pankso@302 213 #script -aqc '/etc/init.d/rcS readonly' /run/boot.log
pankso@302 214 #script -aqc '/etc/init.d/rcS readwrite' /run/boot.log
pankso@302 215 /etc/init.d/rcS readonly
pankso@302 216 /etc/init.d/rcS readwrite
pankso@302 217 # Lograde boot.log
pankso@302 218 #last=.9
pankso@302 219 #for i in .8 .7 .6 .5 .4 .3 .2 .1 .0 '' ; do
pankso@302 220 #mv -f /var/log/boot.log$i /var/log/boot.log$last 2>/dev/null
pankso@302 221 #last=$i
pankso@302 222 #done
pankso@302 223 #mv -f /run/boot.log /var/log/boot.log
pankso@302 224 #script -aqc '/etc/init.d/rcS logged' /var/log/boot.log
pankso@302 225 /etc/init.d/rcS logged ;;
pascal@276 226 esac