systemd/etc/init.d/udev.init.lfs

#!/bin/sh
#
# LinuxFromScratch udev init script
#  derived from original RedHat udev init script
#  2003 by Michael Buesch <mbuesch@freenet.de>
#

source /etc/sysconfig/rc
source $rc_functions

udev_dir="/udev"
sysfs_dir="/sys"
bin="/sbin/udev"

case "$1" in
	start)
		echo "Creating initial udev device nodes ..."
		if [ ! -d $udev_dir ]; then
			mkdir $udev_dir
			if [ $? -ne 0 ]; then
				print_status failure
				exit 1
			fi
		fi
		if [ ! -d $sysfs_dir ]; then
			echo "sysfs_dir $sysfs_dir does not exist!"
			print_status failure
			exit 1
		fi
		# propogate /udev from /sys - we only need this while we do not
		# have initramfs and an early user-space with which to do early
		# device bring up
		clean_exit="yes"
		export ACTION=add
		# add block devices and their partitions
		for i in ${sysfs_dir}/block/*; do
			# add each drive
			export DEVPATH=${i#${sysfs_dir}}
			$bin block

			# add each partition, on each device
			for j in $i/*; do
				if [ -f $j/dev ]; then
					export DEVPATH=${j#${sysfs_dir}}
					$bin block
					if [ $? -ne 0 ]; then
						echo "Warning: $DEVPATH failed."
						clean_exit="no"
					fi
				fi
			done
		done
		# all other device classes
		for i in ${sysfs_dir}/class/*; do
			for j in $i/*; do
				if [ -f $j/dev ]; then
					export DEVPATH=${j#${sysfs_dir}}
					CLASS=`echo ${i#${sysfs_dir}} | \
						cut --delimiter='/' --fields=3-`
					$bin $CLASS
					if [ $? -ne 0 ]; then
						echo "Warning: $DEVPATH failed."
						clean_exit="no"
					fi
				fi
			done
		done
		if [ $clean_exit = "yes" ]; then
			print_status success
		else
			print_status warning
		fi
		;;
	stop)
		echo "Removing udev device nodes ..."
	  	# be careful
		if [ $udev_dir -a "$udev_dir" != "/" ]; then
		  	# clear out /udev
  			rm -rf ${udev_dir}/*
			evaluate_retval
		fi
		;;
	reload)
	  	# nothing to do here
		;;
	restart)
		$0 stop
		sleep 1
		$0 start
		;;
	status)
	  	if [ -d $udev_dir ]; then
			echo "the udev device node directory exists"
		else
			echo "the udev device node directory does not exist"
		fi
		;;
	*)
		echo "Usage: $0 {start|stop|restart|status}"
		exit 1
		;;
esac
exit 0