1#!/bin/sh 2 3### BEGIN INIT INFO 4# Provides: udev 5# Required-Start: mountvirtfs 6# Required-Stop: 7# Default-Start: S 8# Default-Stop: 9# Short-Description: Start udevd, populate /dev and load drivers. 10### END INIT INFO 11 12export TZ=/etc/localtime 13 14[ -d /sys/class ] || exit 1 15[ -r /proc/mounts ] || exit 1 16[ -x @UDEVD@ ] || exit 1 17 18[ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf 19[ -f /etc/default/rcS ] && . /etc/default/rcS 20 21kill_udevd () { 22 pid=`pidof -x udevd` 23 [ -n "$pid" ] && kill $pid 24} 25 26make_static_nodes () { 27 [ -e /lib/modules/$(uname -r)/modules.devname ] || return 0 28 [ -x @KMOD@ ] || return 0 29 30 #output to /proc/self/fd/1 since /dev/stdout not created by udevd yet 31 @KMOD@ static-nodes --format=tmpfiles --output=/proc/self/fd/1 | 32 while read TTYPE TPATH TMODE TUSER TGROUP TAGE TARG; do 33 case "${TTYPE}" in 34 'd') 35 test -d "${TPATH}" || mkdir -p -m "${TMODE}" "${TPATH}" 36 ;; 37 38 'c!') 39 if [ ! -c "${TPATH}" ]; then 40 old_ifs="${IFS}" 41 IFS=: 42 set -- ${TARG} 43 IFS="${old_ifs}" 44 mknod -m "${TMODE}" "${TPATH}" c "$@" 45 fi 46 ;; 47 48 *) 49 echo "Unparseable line (${TTYPE} ${TPATH} ${TMODE} ${TUSER} ${TGROUP} ${TAGE} ${TARG})" 50 return 1 51 ;; 52 esac 53 if [ "${TUSER}" != "-" ]; then 54 chown "${TUSER}" "${TPATH}" 55 fi 56 if [ "${TGROUP}" != "-" ]; then 57 chgrp "${TGROUP}" "${TPATH}" 58 fi 59 done 60} 61 62case "$1" in 63 start) 64 export ACTION=add 65 # propagate /dev from /sys 66 echo "Starting udev" 67 68 # Check for requireed devtmpfs before trying to start udev and 69 # mount a no-existant fs. 70 if ! grep -q devtmpfs /proc/filesystems 71 then 72 echo "Missing devtmpfs, which is required for udev to run"; 73 echo "Halting..." 74 halt 75 fi 76 # mount the devtmpfs on /dev, if not already done 77 LANG=C awk '$2 == "/dev" && ($3 == "devtmpfs") { exit 1 }' /proc/mounts && { 78 mount -n -o mode=0755 -t devtmpfs none "/dev" 79 } 80 [ -e /dev/pts ] || mkdir -m 0755 /dev/pts 81 [ -e /dev/shm ] || mkdir -m 1777 /dev/shm 82 # the automount rule for udev needs /tmp directory available, as /tmp is a symlink 83 # to /var/tmp which in turn is a symlink to /var/volatile/tmp, we need to make sure 84 # /var/volatile/tmp directory to be available. 85 mkdir -m 1777 -p /var/volatile/tmp 86 87 # make_extra_nodes 88 kill_udevd > "/dev/null" 2>&1 89 90 make_static_nodes 91 # trigger the sorted events 92 [ -e /proc/sys/kernel/hotplug ] && printf '\0\n' >/proc/sys/kernel/hotplug 93 @UDEVD@ -d 94 95 udevadm control --env=STARTUP=1 96 if [ "$not_first_boot" != "" ];then 97 if [ "$PROBE_PLATFORM_BUS" != "yes" ]; then 98 PLATFORM_BUS_NOMATCH="--subsystem-nomatch=platform" 99 else 100 PLATFORM_BUS_NOMATCH="" 101 fi 102 udevadm trigger --action=add --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus --subsystem-nomatch=graphics --subsystem-nomatch=backlight --subsystem-nomatch=video4linux $PLATFORM_BUS_NOMATCH 103 (udevadm settle --timeout=3; udevadm control --env=STARTUP=)& 104 else 105 udevadm trigger --action=add 106 udevadm settle 107 fi 108 ;; 109 stop) 110 echo "Stopping udevd" 111 start-stop-daemon --stop --name udevd --quiet 112 ;; 113 restart) 114 $0 stop 115 sleep 1 116 $0 start 117 ;; 118 status) 119 pid=`pidof -x udevd` 120 if [ -n "$pid" ]; then 121 echo "udevd (pid $pid) is running ..." 122 else 123 echo "udevd is stopped" 124 fi 125 ;; 126 *) 127 echo "Usage: $0 {start|stop|status|restart}" 128 exit 1 129esac 130exit 0 131