From 0177a3d932dbb84f89b19628331ef9b4968e105c Mon Sep 17 00:00:00 2001
From: Michael Lauer <mickey@vanille-media.de>
Date: Fri, 29 Feb 2008 00:22:15 +0000
Subject: udev 118 simplify init script, closes #3886

---
 packages/udev/udev-118/init | 86 ++++++++-------------------------------------
 1 file changed, 15 insertions(+), 71 deletions(-)

(limited to 'packages/udev/udev-118')

diff --git a/packages/udev/udev-118/init b/packages/udev/udev-118/init
index 73c655a0ee..a6b8fa174f 100644
--- a/packages/udev/udev-118/init
+++ b/packages/udev/udev-118/init
@@ -30,7 +30,7 @@ mount_tmpfs() {
   # directory which is guaranteed to be available.
   mount -n -o bind /dev /etc/udev
 
-  if ! mount -n -o size=$tmpfs_size,mode=0755 -t tmpfs tmpfs /dev; then
+  if ! mount -n -o size=$tmpfs_size,mode=0755 -t tmpfs udev /dev; then
     umount /etc/udev
     echo "udev requires tmpfs support, not started."
     exit 1
@@ -55,6 +55,7 @@ mount_tmpfs() {
 
 # I hate this hack.  -- Md
 make_extra_nodes() {
+  mknod -m 666 /dev/null c 1 3
   if [ "$(echo /lib/udev/devices/*)" != "/lib/udev/devices/*" ]; then
     cp -a /lib/udev/devices/* /dev/
   fi
@@ -75,18 +76,11 @@ make_extra_nodes() {
 supported_kernel() {
   case "$(uname -r)" in
     2.[012345].*|2.6.[0-9]|2.6.[0-9][!0-9]*) return 1 ;;
-    2.6.1[01]|2.6.1[01][!0-9]*) return 1 ;;
+    2.6.1[0134]|2.6.1[01234][!0-9]*) return 1 ;;
   esac
   return 0
 }
 
-set_hotplug_handler() {
-  case "$(uname -r)" in
-    2.6.1[0-4]|2.6.1[0-4][!0-9]*) HANDLER='/sbin/udevsend' ;;
-  esac
-  echo $HANDLER > /proc/sys/kernel/hotplug
-}
-
 # shell version of /usr/bin/tty
 my_tty() {
   [ -x /bin/readlink ] || return 0
@@ -94,24 +88,6 @@ my_tty() {
   readlink --silent /proc/self/fd/0 || true
 }
 
-warn_if_interactive() {
-  if [ "$RUNLEVEL" = "S" -a "$PREVLEVEL" = "N" ]; then
-    return
-  fi
-
-  TTY=$(my_tty)
-  if [ -z "$TTY" -o "$TTY" = "/dev/console" ]; then
-    return
-  fi
-
-  printf "\n\n\nIt has been detected that the command\n\n\t$0 $*\n\n"
-  printf "has been run from an interactive shell.\n"
-  printf "It will probably not do what you expect, so this script will wait\n"
-  printf "60 seconds before continuing. Press ^C to stop it.\n"
-  printf "RUNNING THIS COMMAND IS HIGHLY DISCOURAGED!\n\n\n\n"
-  sleep 60
-}
-
 ##############################################################################
 
 PATH="/sbin:/bin:/usr/bin"
@@ -120,13 +96,11 @@ PATH="/sbin:/bin:/usr/bin"
 
 # defaults
 tmpfs_size="2M"
-udev_root="/dev"
-udevd_timeout=30
 
 . /etc/udev/udev.conf
 
 if ! supported_kernel; then
-  echo "udev requires a kernel >= 2.6.12, not started."
+  echo "udev requires a kernel >= 2.6.15, not started."
   exit 1
 fi
 
@@ -145,61 +119,31 @@ if [ ! -d /sys/class/ ]; then
   exit 1
 fi
 
-if [ ! -e /proc/sys/kernel/hotplug ]; then
-  echo "udev requires hotplug support, not started."
-  exit 1
-fi
-
 ##############################################################################
 
 # When modifying this script, do not forget that between the time that
 # the new /dev has been mounted and udevsynthesize has been run there will be
 # no /dev/null. This also means that you cannot use the "&" shell command.
-
 case "$1" in
     start)
-    if [ -e "$udev_root/.udev/" ]; then
-	if mountpoint -q /dev/; then
-	    TMPFS_MOUNTED=1
-	else
-	    echo ".udev/ already exists on the static $udev_root!"
-	fi
-    else
-	warn_if_interactive
-    fi
+    unmount_devpts
+    mount_tmpfs
+    [ -d /proc/1 ] || mount -n /proc
 
-    echo "Starting the hotplug events dispatcher" "udevd"
-    udevd --daemon
-
-    set_hotplug_handler
+    # /dev/null must be created before udevd is started
+    make_extra_nodes
 
-    if [ -z "$TMPFS_MOUNTED" ]; then
-	unmount_devpts
-	mount_tmpfs
-	[ -d /proc/1 ] || mount -n /proc
+    # It's all over netlink now
+    if [ -e /proc/sys/kernel/hotplug ]; then
+        echo "" > /proc/sys/kernel/hotplug
     fi
 
-    # if this directory is not present /dev will not be updated by udev
-    mkdir -p /dev/.udev/ /dev/.udev/db/ /dev/.udev/queue/ /dev/.udevdb/
-    # /dev/null must be created before udevd is started
-    make_extra_nodes
+    echo "Starting the hotplug events dispatcher" "udevd"
+    udevd --daemon
 
     echo "Synthesizing the initial hotplug events"
     udevtrigger
-
-    # wait for the udevd childs to finish
-    echo "Waiting for /dev to be fully populated"
-    while [ -d /dev/.udev/queue/ ]; do
-	sleep 1
-	udevd_timeout=$(($udevd_timeout - 1))
-	if [ $udevd_timeout -eq 0 ]; then
-	    # ps axf
-	    break
-	fi
-    done
-    if [ $udevd_timeout -eq 0 ]; then
-	echo 'timeout'
-    fi
+    udevsettle
     ;;
 
     stop)
-- 
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