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