5 # script to initialize /dev by using udev.
7 # Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
9 # Released under the GPL v2 only.
11 # This needs to be run at the earliest possible point in the boot
14 # Based on the udev init.d script
16 # Thanks go out to the Gentoo developers for proving
17 # that this is possible to do.
19 # Yes, it's very verbose, feel free to turn off all of the echo calls,
20 # they were there to make me feel better that everything was working
21 # properly during development...
23 # default value, if no config present.
28 # don't use udev if sysfs is not mounted.
29 [ -d $sysfs_dir/class ] || exit 1
30 [ -r /proc/mounts ] || exit 1
31 [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf
33 . /etc/rc.d/init.d/functions
40 grep '^[^#]' /etc/udev/links.conf | \
41 while read type name arg1; do
42 [ "$type" -a "$name" -a ! -e "$udev_root/$name" -a ! -L "/dev/$name" ] ||continue
44 L) ln -s $arg1 $udev_root/$name ;;
45 D) mkdir -p $udev_root/$name ;;
46 M) mknod -m 600 /dev/$name $arg1 ;;
47 *) echo "links.conf: unparseable line ($type $name $arg1)" ;;
50 cp -a /lib/udev/devices/* /dev/ >/dev/null 2>&1 || :
54 if [ -x /sbin/pidof ]; then
55 pid=`/sbin/pidof -x udevd`
56 [ -n "$pid" ] && kill $pid
60 set_hotplug_handler() {
61 echo "" > /proc/sys/kernel/hotplug
70 # mount the tmpfs on ${udev_root%/}, if not already done
71 LANG=C awk "\$2 == \"${udev_root%/}\" && \$3 == \"tmpfs\" { exit 1 }" /proc/mounts && {
72 if LANG=C fgrep -q "none ${udev_root%/}/pts " /proc/mounts; then
73 PTSDIR=$(mktemp -d ${TMPDIR:-/tmp}/tmpXXXXXX)
74 mount --move $udev_root/pts "$PTSDIR"
76 if LANG=C fgrep -q "none ${udev_root%/}/shm " /proc/mounts; then
77 SHMDIR=$(mktemp -d ${TMPDIR:-/tmp}/tmpXXXXXX)
78 mount --move $udev_root/shm "$SHMDIR"
80 mount -n -o mode=0755 -t tmpfs none "$udev_root"
81 mkdir -m 0755 $udev_root/pts
82 mkdir -m 0755 $udev_root/shm
83 if [ -n "$PTSDIR" ]; then
84 mount --move "$PTSDIR" $udev_root/pts
87 if [ -n "$SHMDIR" ]; then
88 mount --move "$SHMDIR" $udev_root/shm
95 kill_udevd > "$udev_root/null" 2>&1
105 if [ -f "/sys/class/tty/console/uevent" ]; then
107 # Setting default hotplug handler
111 # retrigger all events
112 # Udev find's it's own way of making this dir
113 # and making it by hand makes udevsettle
115 #mkdir -p /dev/.udev/queue
119 # wait for the events to finish
123 echo "Kernel too old for this udev version"
127 [ $ret -eq 0 ] && ok || fail