systemd/udev-initscript

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2023-12-30 11:35:14 +01:00
#! /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_PROG=systemd-udevd
UDEV_BIN=/lib/systemd/$UDEV_PROG
UDEV_STATIC_ARCHIVE=/lib/udev/devices/static.tar.gz
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
. /etc/sysconfig/rc
. $rc_functions
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
echo "" > /proc/sys/kernel/hotplug
echo -n "Starting udev: "
if [ ! "`grep ' /dev ' /proc/mounts`" ]; then
[ "`grep devtmpfs /proc/filesystems`" ] && \
mount -n -t devtmpfs udev /dev || \
mount -n -t tmpfs udev /dev
fi
if [ ! "`grep ' /run ' /proc/mounts`" ]; then
mount -n -t tmpfs tmpfs /run
fi
[ -e /dev/shm ] || {
mkdir /dev/shm /dev/pts
chmod 1777 /dev/shm
}
[ -e $UDEV_STATIC_ARCHIVE ] && {
STATIC_INIT=1
(cd /
tar xzf $UDEV_STATIC_ARCHIVE)
} || [ -x /lib/udev/devices/MAKEDEV ] && /lib/udev/devices/MAKEDEV
$UDEV_BIN --daemon &>/dev/null
evaluate_retval
echo
[ "$STATIC_INIT" ] || {
echo -n "Plugging devices: "
udevadm trigger
udevadm settle
evaluate_retval
echo
}
;;
stop)
echo -n "Stopping udev: "
killall $UDEV_PROG
success
echo
;;
restart|force-reload)
$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"
echo_success found
echo
else
#log_warning_msg "not found"
warning "not found"
echo
exit 3
fi
;;
savedevices)
echo -n "Creating static devices archive: "
(cd /
tar czf $UDEV_STATIC_ARCHIVE /dev)
evaluate_retval
echo
;;
*)
echo "Usage: $0 {start|stop|status|restart|force-reload|reload|savedevices}"
exit 1
;;
esac