FM / init.d

/snap/core18/2999/etc/init.d

Name	Size	Mode	Actions
apparmor	4335	0755	edit dl rm
dbus	2813	0755	edit dl rm
hwclock.sh	3809	0755	edit dl rm
kmod	2044	0755	edit dl rm
procps	1191	0755	edit dl rm
ssh	3837	0755	edit dl rm
udev	5974	0755	edit dl rm

Edit: /snap/core18/2999/etc/init.d/udev (5974B)

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          udev
# Required-Start:    mountkernfs
# Required-Stop:
# Default-Start:     S
# Default-Stop:
# Short-Description: Start systemd-udevd, populate /dev and load drivers.
### END INIT INFO

# we need to unmount /dev/pts/ and remount it later over the devtmpfs
unmount_devpts() {
  if mountpoint -q /dev/pts/; then
    umount -n -l /dev/pts/
  fi

if mountpoint -q /dev/shm/; then
    umount -n -l /dev/shm/
  fi
}

# mount a devtmpfs over /dev, if somebody did not already do it
mount_devtmpfs() {
  if grep -E -q "^[^[:space:]]+ /dev devtmpfs" /proc/mounts; then
    mount -n -o remount,nosuid,size=$tmpfs_size,mode=0755 -t devtmpfs devtmpfs /dev
    return
  fi

if ! mount -n -o nosuid,size=$tmpfs_size,mode=0755 -t devtmpfs devtmpfs /dev; then
    log_failure_msg "udev requires devtmpfs support, not started"
    log_end_msg 1
  fi

return 0
}

create_dev_makedev() {
  if [ -e /sbin/MAKEDEV ]; then
    ln -sf /sbin/MAKEDEV /dev/MAKEDEV
  else
    ln -sf /bin/true /dev/MAKEDEV
  fi
}

supported_kernel() {
  case "$(uname -r)" in
    2.[012345].*|2.6.[0-9]|2.6.[0-9][!0-9]*) return 1 ;;
    2.6.[12][0-9]|2.6.[12][0-9][!0-9]*) return 1 ;;
    2.6.3[0-1]|2.6.3[0-1][!0-9]*) return 1 ;;
  esac
  return 0
}

# shell version of /usr/bin/tty
my_tty() {
  [ -x /bin/readlink ] || return 0
  [ -e /proc/self/fd/0 ] || return 0
  readlink --silent /proc/self/fd/0 || true
}

warn_if_interactive() {
  if [ "$RUNLEVEL" = "S" -a "$PREVLEVEL" = "N" ]; then
    return
  fi

TTY=$(my_tty)
  if [ -z "$TTY" -o "$TTY" = "/dev/console" -o "$TTY" = "/dev/null" ]; then
    return
  fi

printf "\n\n\nIt has been detected that the command\n\n\t$0 $*\n\n"
  printf "has been run from an interactive shell.\n"
  printf "It will probably not do what you expect, so this script will wait\n"
  printf "60 seconds before continuing. Press ^C to stop it.\n"
  printf "RUNNING THIS COMMAND IS HIGHLY DISCOURAGED!\n\n\n\n"
  sleep 60
}

make_static_nodes() {
  [ -e /lib/modules/$(uname -r)/modules.devname ] || return 0
  [ -x /bin/kmod ] || return 0

/bin/kmod static-nodes --format=tmpfiles --output=/proc/self/fd/1 | \
  while read type name mode uid gid age arg; do
    [ -e $name ] && continue
    case "$type" in
      c|b|c!|b!) mknod -m $mode $name $type $(echo $arg | sed 's/:/ /') ;;
      d|d!) mkdir $name ;;
      *) echo "unparseable line ($type $name $mode $uid $gid $age $arg)" >&2 ;;
    esac

if [ -x /sbin/restorecon ]; then
      /sbin/restorecon $name
    fi
  done
}

##############################################################################

PATH="/sbin:/bin"
NAME="systemd-udevd"
DAEMON="/lib/systemd/systemd-udevd"
DESC="the hotplug events dispatcher"

[ -x $DAEMON ] || exit 0

# defaults
tmpfs_size="10M"

if [ -e /etc/udev/udev.conf ]; then
  . /etc/udev/udev.conf
fi

. /lib/lsb/init-functions

if ! supported_kernel; then
  log_failure_msg "udev requires a kernel >= 2.6.32, not started"
  log_end_msg 1
fi

if [ ! -e /proc/filesystems ]; then
  log_failure_msg "udev requires a mounted procfs, not started"
  log_end_msg 1
fi

if ! grep -q '[[:space:]]devtmpfs$' /proc/filesystems; then
  log_failure_msg "udev requires devtmpfs support, not started"
  log_end_msg 1
fi

if [ ! -d /sys/class/ ]; then
  log_failure_msg "udev requires a mounted sysfs, not started"
  log_end_msg 1
fi

if ! ps --no-headers --format args ax | egrep -q '^\['; then
  log_warning_msg "udev does not support containers, not started"
  exit 0
fi

if [ -d /sys/class/mem/null -a ! -L /sys/class/mem/null ] || \
   [ -e /sys/block -a ! -e /sys/class/block ]; then
  log_warning_msg "CONFIG_SYSFS_DEPRECATED must not be selected"
  log_warning_msg "Booting will continue in 30 seconds but many things will be broken"
  sleep 30
fi

# When modifying this script, do not forget that between the time that the
# new /dev has been mounted and udevadm trigger has been run there will be
# no /dev/null. This also means that you cannot use the "&" shell command.

case "$1" in
    start)
    if [ ! -e "/run/udev/" ]; then
	warn_if_interactive
    fi

if [ -w /sys/kernel/uevent_helper ]; then
	echo > /sys/kernel/uevent_helper
    fi

if ! mountpoint -q /dev/; then
	unmount_devpts
	mount_devtmpfs
	[ -d /proc/1 ] || mount -n /proc
    fi

make_static_nodes

# clean up parts of the database created by the initramfs udev
    udevadm info --cleanup-db

# set the SELinux context for devices created in the initramfs
    [ -x /sbin/restorecon ] && /sbin/restorecon -R /dev

log_daemon_msg "Starting $DESC" "$NAME"
    if $DAEMON --daemon; then
	log_end_msg $?
    else
	log_warning_msg $?
	log_warning_msg "Waiting 15 seconds and trying to continue anyway"
	sleep 15
    fi

log_action_begin_msg "Synthesizing the initial hotplug events"
    if udevadm trigger --action=add; then
	log_action_end_msg $?
    else
	log_action_end_msg $?
    fi

create_dev_makedev

# wait for the systemd-udevd childs to finish
    log_action_begin_msg "Waiting for /dev to be fully populated"
    if udevadm settle; then
	log_action_end_msg 0
    else
	log_action_end_msg 0 'timeout'
    fi
    ;;

stop)
    log_daemon_msg "Stopping $DESC" "$NAME"
    if start-stop-daemon --stop --name $NAME --user root --quiet --oknodo --retry 5; then
	log_end_msg $?
    else
	log_end_msg $?
    fi
    ;;

restart)
    log_daemon_msg "Stopping $DESC" "$NAME"
    if start-stop-daemon --stop --name $NAME --user root --quiet --oknodo --retry 5; then
	log_end_msg $?
    else
	log_end_msg $? || true
    fi

log_daemon_msg "Starting $DESC" "$NAME"
    if $DAEMON --daemon; then
	log_end_msg $?
    else
	log_end_msg $?
    fi
    ;;

reload|force-reload)
    udevadm control --reload-rules
    ;;

status)
    status_of_proc $DAEMON $NAME && exit 0 || exit $?
    ;;

*)
    echo "Usage: /etc/init.d/udev {start|stop|restart|reload|force-reload|status}" >&2
    exit 1
    ;;
esac

exit 0

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