#
# Released under the GPL v2 only.
#
-# This needs to be run at the earliest possible point in the boot
+# This needs to be run at the earliest possible point in the boot
# process.
#
# Based on the udev init.d script
#
-# Thanks go out to the Gentoo developers for proving
+# Thanks go out to the Gentoo developers for proving
# that this is possible to do.
#
# Yes, it's very verbose, feel free to turn off all of the echo calls,
# properly during development...
# default value, if no config present.
-udev_root="/dev/"
+udev_root="/dev"
sysfs_dir="/sys"
udevd_timeout=8
prog=udev
bin=/sbin/udev
-udevd=/sbin/udevd
+udevd=/lib/udev/udevd
+# trim traling slash, code expects it not to be there
+udev_root=${udev_root%/}
-make_extra_nodes () {
+create_static_nodes() {
+ /sbin/kmod static-nodes --format=tmpfiles | \
+ while read type file mode uid gid age dev ; do
+ case $type in
+ d|D)
+ mkdir -p --mode=$mode $file
+ ;;
+ *)
+ oldIFS=$IFS
+ IFS=":"
+ set -- $dev
+ maj=$1
+ min=$2
+ IFS=$oldIFS
+ mknod --mode=$mode $file $type $maj $min
+ ;;
+ esac
+ [ $uid = "-" ] || chown $uid $file
+ [ $gid = "-" ] || chgrp $gid $file
+ done
+}
+
+make_extra_nodes() {
grep '^[^#]' /etc/udev/links.conf | \
while read type name arg1; do
- [ "$type" -a "$name" -a ! -e "$udev_root/$name" -a ! -L "/dev/$name" ] ||continue
- case "$type" in
- L) ln -s $arg1 $udev_root/$name ;;
- D) mkdir -p $udev_root/$name ;;
- M) mknod -m 600 /dev/$name $arg1 ;;
- *) echo "links.conf: unparseable line ($type $name $arg1)" ;;
- esac
+ [ "$type" -a "$name" -a ! -e "$udev_root/$name" -a ! -L "/dev/$name" ] ||continue
+ case "$type" in
+ L) ln -s $arg1 $udev_root/$name ;;
+ D) mkdir -p $udev_root/$name ;;
+ M) mknod -m 600 /dev/$name $arg1 ;;
+ *) echo "links.conf: unparseable line ($type $name $arg1)" ;;
+ esac
done
[ -d /lib/udev/devices ] && cp -a /lib/udev/devices/* /dev/ >/dev/null 2>&1 || :
[ -d /lib64/udev/devices ] && cp -a /lib64/udev/devices/* /dev/ >/dev/null 2>&1 || :
kill_udevd() {
if [ -x /sbin/pidof ]; then
- pid=`/sbin/pidof -x udevd`
+ pid=$(/sbin/pidof -x udevd)
[ -n "$pid" ] && kill $pid
fi
}
set_hotplug_handler() {
- echo "" > /proc/sys/kernel/hotplug
+ echo "" > /proc/sys/kernel/hotplug
}
+# find subdirs mounted under $udev_root
+get_dev_mounts() {
+ awk -vudev_root="$udev_root/" '
+ BEGIN {
+ len = length(udev_root);
+ }
+
+ substr($2, 1, len) == udev_root {
+ print substr($2, len + 1)
+ }' /proc/mounts
+}
+
+show "Starting udev"; busy
+
export ACTION=add
prog=udev
ret=0
-show "Starting udev"
-busy
-
-# mount the tmpfs on ${udev_root%/}, if not already done
-LANG=C awk "\$2 == \"${udev_root%/}\" && \$3 == \"tmpfs\" { exit 1 }" /proc/mounts && {
- if LANG=C fgrep -q "none ${udev_root%/}/pts " /proc/mounts; then
- PTSDIR=$(mktemp -d ${TMPDIR:-/tmp}/tmpXXXXXX)
- mount --move $udev_root/pts "$PTSDIR"
- fi
- if LANG=C fgrep -q "none ${udev_root%/}/shm " /proc/mounts; then
- SHMDIR=$(mktemp -d ${TMPDIR:-/tmp}/tmpXXXXXX)
- mount --move $udev_root/shm "$SHMDIR"
- fi
- mount -n -o mode=0755 -t tmpfs none "$udev_root"
- mkdir -m 0755 $udev_root/pts
- mkdir -m 0755 $udev_root/shm
- if [ -n "$PTSDIR" ]; then
- mount --move "$PTSDIR" $udev_root/pts
- rmdir "$PTSDIR"
- fi
- if [ -n "$SHMDIR" ]; then
- mount --move "$SHMDIR" $udev_root/shm
- rmdir "$SHMDIR"
- fi
+# mount the devtmpfs on $udev_root, if not already done
+awk "\$2 == \"$udev_root\" && \$3 == \"devtmpfs\" { exit 1 }" /proc/mounts && {
+ submounts=$(get_dev_mounts)
+
+ if [ "$submounts" ]; then
+ # mount to temporary location to be able to move submounts
+ # this needs writable TMPDIR:-/tmp, so it won't work in early boot
+ # but fix is simple: use initramfs instead of romfs
+ devdir=$(mktemp -d ${TMPDIR:-/tmp}/tmpXXXXXX)
+ else
+ devdir=$udev_root
+ fi
+ mount -n -o mode=0755 -t devtmpfs devtmpfs "$devdir"
ret=$(( $ret + $? ))
+
+ # relocate submounts
+ for dir in $submounts; do
+ mount -n --move $udev_root/$dir $devdir/$dir
+ ret=$(( $ret + $? ))
+ done
+
+ if [ "$submounts" ]; then
+ mount -n --move $devdir $udev_root
+ rmdir $devdir
+ fi
}
kill_udevd > "$udev_root/null" 2>&1
- # Start udevd daemon
- udevd --daemon
- ret=$(( $ret + $? ))
-
- # Making extra nodes
- make_extra_nodes
- ret=$(( $ret + $? ))
-
-if [ -f "/sys/class/tty/console/uevent" ]; then
+# Create required static device nodes for the current kernel
+create_static_nodes
- # Setting default hotplug handler
+# Start udevd daemon
+$udevd --daemon; rc=$?
+test $rc -eq 0 && ok || fail
+ret=$(( $ret + $rc ))
+
+# Making extra nodes
+show "Setup extra nodes"; busy
+make_extra_nodes; rc=$?
+test $rc -eq 0 && ok || fail
+ret=$(( $ret + $rc ))
+
+if [ -f /sys/class/tty/console/uevent ]; then
+ # Setting default hotplug handler
set_hotplug_handler
ret=$(( $ret + $? ))
# retrigger all events
- # Udev find's it's own way of making this dir
- # and making it by hand makes udevsettle
- # work forever
- #mkdir -p /dev/.udev/queue
- udevadm trigger
- ret=$(( $ret + $? ))
-
+ show "Retrigger subsystems events"; busy
+ /sbin/udevadm trigger --type=subsystems --action=add; rc=$?
+ test $rc -eq 0 && ok || fail
+ ret=$(( $ret + $rc ))
+
+ show "Retrigger devices events"; busy
+ /sbin/udevadm trigger --type=devices --action=add; rc=$?
+ test $rc -eq 0 && ok || fail
+ ret=$(( $ret + $rc ))
+
# wait for the events to finish
- udevadm settle
- ret=$(( $ret + $? ))
+ show "udevadm settle"; busy
+ /sbin/udevadm settle; rc=$?
+ test $rc -eq 0 && ok || fail
+ ret=$(( $ret + $rc ))
else
echo "Kernel too old for this udev version"
fi
-ret=$(( $ret + $? ))
-[ $ret -eq 0 ] && ok || fail
-exit 0
+exit $ret
projects / packages / systemd.git / blobdiff