etc/init.d/udev.init.lfs

   1 #!/bin/sh
   2 #
   3 # LinuxFromScratch udev init script
   4 #  derived from original RedHat udev init script
   5 #  2003, 2004 by Michael Buesch <mbuesch@freenet.de>
   6 #
   7
   8 source /etc/sysconfig/rc
   9 source $rc_functions
  10 source /etc/udev/udev.conf
  11
  12 sysfs_dir="/sys"
  13 bin="/sbin/udev"
  14
  15
  16 run_udev ()
  17 {
  18         # handle block devices and their partitions
  19         for i in ${sysfs_dir}/block/*; do
  20                 # add each drive
  21                 export DEVPATH=${i#${sysfs_dir}}
  22                 $bin block &
  23
  24                 # add each partition, on each device
  25                 for j in $i/*; do
  26                         if [ -f $j/dev ]; then
  27                                 export DEVPATH=${j#${sysfs_dir}}
  28                                 $bin block &
  29                         fi
  30                 done
  31         done
  32         # all other device classes
  33         for i in ${sysfs_dir}/class/*; do
  34                 for j in $i/*; do
  35                         if [ -f $j/dev ]; then
  36                                 export DEVPATH=${j#${sysfs_dir}}
  37                                 CLASS=`echo ${i#${sysfs_dir}} | \
  38                                         cut --delimiter='/' --fields=3-`
  39                                 $bin $CLASS &
  40                         fi
  41                 done
  42         done
  43         return 0
  44 }
  45
  46 case "$1" in
  47         start)
  48                 echo "Creating initial udev device nodes ..."
  49                 if [ ! -d $sysfs_dir ]; then
  50                         echo "sysfs_dir $sysfs_dir does not exist!"
  51                         print_status failure
  52                         exit 1
  53                 fi
  54                 if [ ! -d $udev_root ]; then
  55                         mkdir $udev_root
  56                         if [ $? -ne 0 ]; then
  57                                 print_status failure
  58                                 exit 1
  59                         fi
  60                 fi
  61
  62                 # propogate /udev from /sys - we only need this while we do not
  63                 # have initramfs and an early user-space with which to do early
  64                 # device bring up
  65                 export ACTION=add
  66                 run_udev
  67                 evaluate_retval
  68                 ;;
  69         stop)
  70                 echo "Removing udev device nodes ..."
  71                 export ACTION=remove
  72                 run_udev
  73                 evaluate_retval
  74                 ;;
  75         reload)
  76                 # nothing to do here
  77                 ;;
  78         restart)
  79                 $0 stop
  80                 sleep 1
  81                 $0 start
  82                 ;;
  83         status)
  84                 if [ -d $udev_dir ]; then
  85                         echo "the udev device node directory exists"
  86                 else
  87                         echo "the udev device node directory does not exist"
  88                 fi
  89                 ;;
  90         *)
  91                 echo "Usage: $0 {start|stop|restart|status}"
  92                 exit 1
  93                 ;;
  94 esac
  95 exit 0