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Editing File: /var/lib/dpkg/info/udev.postinst

#!/bin/sh

set -e

chrooted() {
  if [ "$(stat -c %d/%i /)" = "$(stat -Lc %d/%i /proc/1/root 2>/dev/null)" ];
  then
    # the devicenumber/inode pair of / is the same as that of /sbin/init's
    # root, so we're *not* in a chroot and hence return false.
    return 1
  fi
  echo "A chroot environment has been detected, udev not started."
  return 0
}

in_debootstrap() {
  # debootstrap --second-stage may be run in an emulator instead of a chroot,
  # we need to check for this special case because start-stop-daemon would
  # not be available. (#520742)
  if [ -d /debootstrap/ ]; then
    echo "Being installed by debootstrap, udev not started."
    return 0
  fi
  return 1
}

can_start_udevd() {
  if [ ! -d /sys/class/ ]; then
    echo "udev requires a mounted sysfs, not started."
    return 1
  fi
  return 0
}

enable_udev() {
  can_start_udevd || return 0
  invoke-rc.d udev start
}

upgrade_fixes() {
  # new Default-Stop (see #791944)
  if dpkg --compare-versions "$2" lt-nl "239-8"; then
    update-rc.d -f udev remove
  fi
}

update_hwdb() {
  systemd-hwdb --usr update || true
}

case "$1" in
    configure)
    # update/create hwdb before we (re)start udev
    update_hwdb

# Add new system group used by udev rules
    addgroup --quiet --system input

# Make /dev/kvm accessible to kvm group
    addgroup --quiet --system kvm

# Make /dev/dri/renderD* accessible to render group
    addgroup --quiet --system render

if [ -z "$2" ]; then # first install
      if ! chrooted && ! in_debootstrap; then
	enable_udev
      fi
    else # upgrades
      upgrade_fixes "$@"
      if ! chrooted; then
	if can_start_udevd; then
	  if [ -d /run/systemd/system ] ; then
	    systemctl daemon-reload || true
	  fi
	  invoke-rc.d udev restart
	fi
      fi
    fi
    ;;

triggered)
    update_hwdb
    exit 0
    ;;
esac

# Automatically added by dh_installtmpfiles/13.3.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# In case this system is running systemd, we need to ensure that all
	# necessary tmpfiles (if any) are created before starting.
	if [ -d /run/systemd/system ] ; then
		systemd-tmpfiles --create static-nodes-permissions.conf >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installdeb/13.3.4
dpkg-maintscript-helper rm_conffile /etc/init/udev.conf 233-1\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/udevmonitor.conf 233-1\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/init/udevtrigger.conf 233-1\~ -- "$@"
# End automatically added section
# Automatically added by dh_installinit/13.3.4
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/udev" ]; then
		update-rc.d udev defaults >/dev/null || exit 1
	fi
fi
# End automatically added section

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