From 4b46c1f6e891b1ddd5968536440b888661fade3e Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard@openedhand.com>
Date: Wed, 31 Aug 2005 10:45:47 +0000
Subject: Initial population

git-svn-id: https://svn.o-hand.com/repos/poky@1 311d38ba-8fff-0310-9ca6-ca027cbcb966
---
 openembedded/packages/udev/files/init | 178 ++++++++++++++++++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100755 openembedded/packages/udev/files/init

(limited to 'openembedded/packages/udev/files/init')

diff --git a/openembedded/packages/udev/files/init b/openembedded/packages/udev/files/init
new file mode 100755
index 000000000..16efb3154
--- /dev/null
+++ b/openembedded/packages/udev/files/init
@@ -0,0 +1,178 @@
+#!/bin/sh -e
+
+PATH="/usr/sbin:/usr/bin:/sbin:/bin"
+
+UDEVSTART=/sbin/udevstart
+
+# default maximum size of the /dev ramfs
+ramfs_size="1M"
+
+[ -x $UDEVSTART ] || exit 0
+
+. /etc/udev/udev.conf
+
+case "$(uname -r)" in
+  2.[012345].*)
+    echo "udev requires a kernel >= 2.6, not started."
+    exit 0
+    ;;
+esac
+
+if ! grep -q '[[:space:]]ramfs$' /proc/filesystems; then
+    echo "udev requires ramfs support, not started."
+    exit 0
+fi
+
+if [ ! -e /proc/sys/kernel/hotplug ]; then
+    echo "udev requires hotplug support, not started."
+    exit 0
+fi
+
+##############################################################################
+
+# we need to unmount /dev/pts/ and remount it later over the ramfs
+unmount_devpts() {
+  if mountpoint -q /dev/pts/; then
+    umount -l /dev/pts/
+  fi
+
+  if mountpoint -q /dev/shm/; then
+    umount -l /dev/shm/
+  fi
+}
+
+# mount a ramfs over /dev, if somebody did not already do it
+mount_ramfs() {
+  if grep -E -q "^[^[:space:]]+ /dev ramfs" /proc/mounts; then
+    return 0
+  fi
+
+  # /.dev is used by /sbin/MAKEDEV to access the real /dev directory.
+  # if you don't like this, remove /.dev/.
+  [ -d /.dev ] && mount --bind /dev /.dev
+
+  echo -n "Mounting a ramfs over /dev..."
+  mount -n -o size=$ramfs_size,mode=0755 -t ramfs none /dev
+  echo "done."
+}
+
+# I hate this hack.  -- Md
+make_extra_nodes() {
+ if [ -f /etc/udev/links.conf ]; then
+  grep '^[^#]' /etc/udev/links.conf | \
+  while read type name arg1; do
+    [ "$type" -a "$name" -a ! -e "/dev/$name" -a ! -L "/dev/$name" ] ||continue
+    case "$type" in
+    L)
+      ln -s $arg1 /dev/$name
+      ;;
+    D)
+      mkdir -p /dev/$name
+      ;;
+    M)
+      mknod -m 600 /dev/$name $arg1
+      ;;
+    *)
+      echo "unparseable line ($type $name $arg1)"
+      ;;
+    esac
+  done
+ fi
+}
+
+##############################################################################
+
+if [ "$udev_root" != "/dev" ]; then
+  echo "WARNING: udev_root != /dev"
+
+case "$1" in
+  start)
+    if [ -e "$udev_root/.udev.tdb" ]; then
+      if mountpoint -q /dev/; then
+        echo "FATAL: udev is already active on $udev_root."
+        exit 1
+      else
+        echo "WARNING: .udev.tdb already exists on the old $udev_root!"
+      fi
+    fi
+    mount -n -o size=$ramfs_size,mode=0755 -t ramfs none $udev_root
+    echo -n "Creating initial device nodes..."
+    $UDEVSTART
+    echo "done."
+    ;;
+  stop)
+    start-stop-daemon -K -x /sbin/udevd 
+    echo -n "Unmounting $udev_root..."
+    # unmounting with -l should never fail
+    if umount -l $udev_root; then
+      echo "done."
+    else
+      echo "failed."
+    fi
+    ;;
+  restart|force-reload)
+    $0 stop
+    $0 start
+    ;;
+  *)
+    echo "Usage: /etc/init.d/udev {start|stop|restart|force-reload}"
+    exit 1
+    ;;
+esac
+
+  exit 0
+fi # udev_root != /dev/
+
+##############################################################################
+# When modifying this script, do not forget that between the time that
+# the new /dev has been mounted and udevstart 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.tdb" ]; then
+      if mountpoint -q /dev/; then
+        echo "FATAL: udev is already active on $udev_root."
+        exit 1
+      else
+        echo "WARNING: .udev.tdb already exists on the old $udev_root!"
+      fi
+    fi
+    unmount_devpts
+    mount_ramfs
+    ACTION=add
+    echo -n "Creating initial device nodes..."
+    $UDEVSTART
+    make_extra_nodes
+    echo "done."
+#    /etc/init.d/mountvirtfs start
+    ;;
+  stop)
+    start-stop-daemon -K -x /sbin/udevd 
+    unmount_devpts
+    echo -n "Unmounting /dev..."
+    # unmounting with -l should never fail
+    if umount -l /dev; then
+      echo "done."
+      umount -l /.dev || true
+#      /etc/init.d/mountvirtfs start
+    else
+      echo "failed."
+    fi
+    ;;
+  restart|force-reload)
+    start-stop-daemon -K -x /sbin/udevd 
+    echo -n "Recreating device nodes..."
+    ACTION=add
+    $UDEVSTART
+    make_extra_nodes
+    echo "done."
+    ;;
+  *)
+    echo "Usage: /etc/init.d/udev {start|stop|restart|force-reload}"
+    exit 1
+    ;;
+esac
+
+exit 0
+
-- 
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