etc/init.d/udev

   1 #! /bin/bash
   2 #
   3 # random        init script to setup /udev
   4 #
   5 # chkconfig: 2345 20 80
   6 # description: manage user-space device nodes in /udev
   7
   8 . /etc/rc.d/init.d/functions
   9
  10 . /etc/udev/udev.conf
  11
  12 sysfs_dir=/sys
  13 bin=/sbin/udev
  14
  15 run_udev () {
  16         # handle block devices and their partitions
  17         for i in ${sysfs_dir}/block/*; do
  18                 # add each drive
  19                 export DEVPATH=${i#${sysfs_dir}}
  20                 $bin block &
  21
  22                 # add each partition, on each device
  23                 for j in $i/*; do
  24                         if [ -f $j/dev ]; then
  25                                 export DEVPATH=${j#${sysfs_dir}}
  26                                 $bin block &
  27                         fi
  28                 done
  29         done
  30         # all other device classes
  31         for i in ${sysfs_dir}/class/*; do
  32                 for j in $i/*; do
  33                         if [ -f $j/dev ]; then
  34                                 export DEVPATH=${j#${sysfs_dir}}
  35                                 CLASS=`echo ${i#${sysfs_dir}} | \
  36                                         cut --delimiter='/' --fields=3-`
  37                                 $bin $CLASS &
  38                         fi
  39                 done
  40         done
  41 }
  42
  43
  44 case "$1" in
  45   start)
  46         if [ ! -d $sysfs_dir ]; then
  47                 exit 1
  48         fi
  49         if [ ! -d $udev_root ]; then
  50                 mkdir $udev_root
  51         fi
  52         # propogate /udev from /sys - we only need this while we do not
  53         # have initramfs and an early user-space with which to do early
  54         # device bring up
  55         action "Creating initial udev device nodes: " /bin/true
  56         export ACTION=add
  57         run_udev
  58         ;;
  59   stop)
  60         # be careful
  61         action "Removing udev device nodes: " /bin/true
  62         export ACTION=remove
  63         run_udev
  64         ;;
  65   status)
  66         if [ -d $udev_root ]; then
  67                 echo "the udev device node directory exists"
  68         else
  69                 echo "the udev device node directory does not exist"
  70         fi
  71         ;;
  72   restart)
  73         $0 stop
  74         $0 start
  75         ;;
  76   reload)
  77         # nothing to do here
  78         ;;
  79   *)
  80         echo "Usage: $0 {start|stop|status|restart}"
  81         exit 1
  82 esac
  83
  84 exit 0