Systemd/etc/init.d/udev.init.LSB
eike-hotplug@sf-tec.de e64280b8b3 [PATCH] LSB init script and other stuff
I had too much time during the holidays, so I played a bit with udev. The
changes are like last time mostly on the init stuff. I'm sending you this as
a great diff which is just for comments.

What it does:
-fix a typo in Makefile
-use only one "grep -v" instead of many
-don't include BK-Files into release (shrinks the stuff to 30%!)
-add a new init script which is LSB compliant
-add some flags to choose which one to use
-use /etc/udev/udev.conf in Redhat init script as the source for the udev
directory. If this is not done then the init script may create a directory
which udev itself isn't using (I changed /udev to /Udev to avoid collisions
with /usr and ran into this)
-first check for sysfs_dir before creating udev_root (maybe someone else has
already fixed this, I saw this discussion on lkml)
2005-04-26 21:13:15 -07:00

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#! /bin/sh
#
# Author: Rolf Eike Beer <eike-hotplug@sf-tec.de>
# derived from original RedHat udev init script
# based on the SuSE 9.0 template (c) 1995-2002 SuSE Linux AG
#
# /etc/init.d/udev
# and its symbolic link
# /(usr/)sbin/rcudev
#
# System startup script for udev
#
# LSB compatible service control script; see http://www.linuxbase.org/spec/
#
### BEGIN INIT INFO
# Provides: udev
# Required-Start:
# Required-Stop:
# Default-Start: 1 2 3 5
# Default-Stop: 0 6
# Short-Description: manage user-space device nodes in /udev
# Description: Start udev to create the device files for all
# devices already present in system when script is
# called. All other devices files will be automatically
# created when udev is called via /sbin/hotplug.
# Requires at least a kernel 2.6 to work properly.
### END INIT INFO
#
# Note on script names:
# http://www.linuxbase.org/spec/refspecs/LSB_1.2.0/gLSB/scrptnames.html
# A registry has been set up to manage the init script namespace.
# http://www.lanana.org/
# Please use the names already registered or register one or use a
# vendor prefix.
# Check for missing binaries (stale symlinks should not happen)
UDEV_BIN=/sbin/udev
test -x $UDEV_BIN || exit 5
# Check for existence of needed config file and read it
UDEV_CONFIG=/etc/udev/udev.conf
test -r $UDEV_CONFIG || exit 6
. $UDEV_CONFIG
# Directory where sysfs is mounted
SYSFS_DIR=/sys
# Source LSB init functions
. /lib/lsb/init-functions
run_udev () {
# handle block devices and their partitions
for i in ${SYSFS_DIR}/block/*; do
# add each drive
export DEVPATH=${i#${SYSFS_DIR}}
$UDEV_BIN block &
# add each partition, on each device
for j in $i/*; do
if [ -f $j/dev ]; then
export DEVPATH=${j#${SYSFS_DIR}}
$UDEV_BIN block &
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-`
$UDEV_BIN $CLASS &
fi
done
done
}
case "$1" in
start)
if [ ! -d $SYSFS_DIR ]; then
log_failure_msg "${0}: SYSFS_DIR \"$SYSFS_DIR\" not found"
exit 1
fi
if [ ! -d $udev_root ]; then
mkdir $udev_root || exit 4
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
echo -n "Creating initial udev device nodes: "
export ACTION=add
run_udev
log_success_msg
;;
stop)
# be careful
echo -n "Removing udev device nodes: "
export ACTION=remove
run_udev
rm -f $udev_db || exit 1
rmdir $udev_root || exit 1
log_success_msg
;;
restart)
$0 stop
$0 start
exit $?
;;
force-reload)
echo -n "Reload udev "
$0 stop && $0 start
exit $?
;;
reload)
exit 3
;;
status)
echo -n "Checking for udev root directory: "
if [ -d $udev_root ]; then
log_success_msg found
else
log_warning_msg "not found"
exit 3
fi
;;
*)
echo "Usage: $0 {start|stop|status|restart|force-reload|reload}"
exit 1
;;
esac