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.
27 # don't use udev if sysfs is not mounted.
28 [ -d $sysfs_dir/class ] || exit 1
29 [ -r /proc/mounts ] || exit 1
30 [ -x /sbin/udev ] || exit 1
31 [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf
33 . /etc/rc.d/init.d/functions
38 MAKEDEV="/sbin/MAKEDEV"
41 ln -snf /proc/self/fd $udev_root/fd
42 ln -snf /proc/self/fd/0 $udev_root/stdin
43 ln -snf /proc/self/fd/1 $udev_root/stdout
44 ln -snf /proc/self/fd/2 $udev_root/stderr
45 ln -snf /proc/kcore $udev_root/core
47 [ -d $udev_root/pts ] || mkdir -m 0755 $udev_root/pts
48 [ -d $udev_root/shm ] || mkdir -m 0755 $udev_root/shm
49 [ -a /dev/MAKEDEV ] || ln -s $MAKEDEV /dev/MAKEDEV
51 if [ -x $MAKEDEV ]; then
53 for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
54 echo cpu/$i/microcode;
56 for i in 1 2 3 4 5 6; do echo tty$i;done;
57 for i in 0 1 2 3 4 5 6 7; do echo loop$i; done;
58 for i in 0 1 2 3; do echo lp$i; echo parport$i;done;
59 echo net/tun ppp console null zero;
61 [ -a /dev/MAKEDEV ] || ln -s $MAKEDEV /dev/MAKEDEV;
62 cp -a /etc/udev/devices/* /dev/ >/dev/null 2>&1 || :
67 if [ -x /sbin/pidof ]; then
68 pid=`/sbin/pidof -x udevd`
69 [ -n "$pid" ] && kill $pid
73 # we cannot use /usr/bin/find here
79 if [ -d "$f" -a ! -L "$f" ]; then
80 if [ "$f" != "${f%%$what}" ];then
81 # make sure we are at the path end
82 # we have no dirname and basename
84 [ "${rest##*/}" = "$rest" ] && found="$found $f"
86 found="$found $(find_d $f $what)"
92 # we cannot use /usr/bin/find here
98 if [ -d "$f" -a ! -L "$f" ]; then
99 found="$found $(find_f $f $what)"
100 elif [ -e "$f" ]; then
101 [ "$where/" = "${f%$what}" ] && found="$found $f"
104 [ -n "$found" ] && echo "$found"
107 # call hotplug with the scsi devices
109 HOTPLUG="/sbin/udevsend"
111 scsi_hosts=$(find_d /sys/devices host\*)
114 for host in $scsi_hosts; do
115 [ -d $host ] || continue
116 devs=$(find_f $host type)
118 [ -f $dev ] || continue
120 DEVPATH=${DEVPATH#/sys}
121 /bin/env -i DEVPATH="$DEVPATH" SUBSYSTEM=scsi_device ACTION=add $HOTPLUG scsi_device
122 /bin/env -i DEVPATH="$DEVPATH" ACTION=add SUBSYSTEM=scsi $HOTPLUG scsi
129 if [ ! -d /proc/ide ]; then
132 for i in /proc/ide/*/media; do
151 /sbin/modprobe $module
161 # mount the tmpfs on ${udev_root%/}, if not already done
162 LANG=C awk "\$2 == \"${udev_root%/}\" && \$3 == \"tmpfs\" { exit 1 }" /proc/mounts && {
163 if LANG=C fgrep -q "none ${udev_root%/}/pts " /proc/mounts; then
165 mount --move $udev_root/pts "$PTSDIR"
167 if LANG=C fgrep -q "none ${udev_root%/}/shm " /proc/mounts; then
169 mount --move $udev_root/shm "$SHMDIR"
171 mount -n -o mode=0755 -t tmpfs none "$udev_root"
172 mkdir -m 0755 $udev_root/pts
173 mkdir -m 0755 $udev_root/shm
174 if [ -n "$PTSDIR" ]; then
175 mount --move "$PTSDIR" $udev_root/pts
178 if [ -n "$SHMDIR" ]; then
179 mount --move "$SHMDIR" $udev_root/shm
186 rm -rf $udev_root/.udev.tdb
188 kill_udevd > "$udev_root/null" 2>&1
189 scsi_replay > "$udev_root/null" 2>&1
191 ide_scan > "$udev_root/null" 2>&1
194 [ $ret -eq 0 ] && ok || fail