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 case "$1" in
  15   start)
  16         if [ ! -d $udev_dir ]; then
  17                 mkdir $udev_dir
  18         fi
  19         if [ ! -d $sysfs_dir ]; then
  20                 exit 1
  21         fi
  22         # propogate /udev from /sys - we only need this while we do not
  23         # have initramfs and an early user-space with which to do early
  24         # device bring up
  25         action "Creating initial udev device nodes: " /bin/true
  26         export ACTION=add
  27         # add tty devices
  28         for i in ${sysfs_dir}/class/tty/*; do
  29                 export DEVPATH="/"`echo $i | cut --delimiter='/' --fields=3-`
  30                 $bin tty
  31         done
  32         # add block devices and their partitions
  33         for i in ${sysfs_dir}/block/*; do
  34                 export DEVPATH="/"`echo $i | cut --delimiter='/' --fields=3-`
  35                 $bin block
  36                 for j in $i/*; do
  37                         if [ -f $j/dev ]; then
  38                                 export DEVPATH="/"`echo $j |  \
  39                                         cut --delimiter='/' --fields=3-`
  40                                 $bin block
  41                         fi
  42                 done
  43         done
  44         # TODO: add other device classes
  45         ;;
  46   stop)
  47         # be careful
  48         if [ $udev_dir -a "$udev_dir" != "/" ]; then
  49                 # clear out /udev
  50                 rm -rf ${udev_dir}/*
  51         fi
  52         ;;
  53   status)
  54         if [ -d $udev_dir ]; then
  55                 echo "the udev device node directory exists"
  56         else
  57                 echo "the udev device node directory does not exist"
  58         fi
  59         ;;
  60   restart|reload)
  61         # nothing to do here
  62         ;;
  63   *)
  64         echo "Usage: $0 {start|stop|status}"
  65         exit 1
  66 esac
  67
  68 exit 0