etc/rc

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2000-2004  The FreeBSD Project
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25 # SUCH DAMAGE.
  26 #
  27 #       @(#)rc  5.27 (Berkeley) 6/5/91
  28 # $FreeBSD$
  29 #
  30
  31 # System startup script run by init on autoboot
  32 # or after single-user.
  33 # Output and error are redirected to console by init,
  34 # and the console is the controlling terminal.
  35
  36 # Note that almost all of the user-configurable behavior is no longer in
  37 # this file, but rather in /etc/defaults/rc.conf.  Please check that file
  38 # first before contemplating any changes here.  If you do need to change
  39 # this file for some reason, we would like to know about it.
  40
  41 stty status '^T' 2> /dev/null
  42
  43 # Set shell to ignore SIGINT (2), but not children;
  44 # shell catches SIGQUIT (3) and returns to single user.
  45 #
  46 trap : 2
  47 trap "echo 'Boot interrupted'; exit 1" 3
  48
  49 HOME=/
  50 PATH=/sbin:/bin:/usr/sbin:/usr/bin
  51 export HOME PATH
  52
  53 if [ "$1" = autoboot ]; then
  54         autoboot=yes
  55         _boot="faststart"
  56         rc_fast=yes        # run_rc_command(): do fast booting
  57 else
  58         autoboot=no
  59         _boot="quietstart"
  60 fi
  61
  62 dlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null`
  63 if [ ${dlv:=0} -ne 0 -o -f /etc/diskless ]; then
  64         sh /etc/rc.initdiskless
  65 fi
  66
  67 # Run these after determining whether we are booting diskless in order
  68 # to minimize the number of files that are needed on a diskless system,
  69 # and to make the configuration file variables available to rc itself.
  70 #
  71 . /etc/rc.subr
  72 load_rc_config
  73
  74 # If we receive a SIGALRM, re-source /etc/rc.conf; this allows rc.d
  75 # scripts to perform "boot-time configuration" including enabling and
  76 # disabling rc.d scripts which appear later in the boot order.
  77 trap "_rc_conf_loaded=false; load_rc_config" ALRM
  78
  79 skip="-s nostart"
  80 if [ `/sbin/sysctl -n security.jail.jailed` -eq 1 ]; then
  81         skip="$skip -s nojail"
  82         if [ `/sbin/sysctl -n security.jail.vnet` -ne 1 ]; then
  83                 skip="$skip -s nojailvnet"
  84         fi
  85 fi
  86
  87 # If the firstboot sentinel doesn't exist, we want to skip firstboot scripts.
  88 if ! [ -e ${firstboot_sentinel} ]; then
  89         skip_firstboot="-s firstboot"
  90 fi
  91
  92 # Do a first pass to get everything up to $early_late_divider so that
  93 # we can do a second pass that includes $local_startup directories
  94 #
  95 files=`rcorder ${skip} ${skip_firstboot} /etc/rc.d/* 2>/dev/null`
  96
  97 _rc_elem_done=' '
  98 for _rc_elem in ${files}; do
  99         run_rc_script ${_rc_elem} ${_boot}
 100         _rc_elem_done="${_rc_elem_done}${_rc_elem} "
 101
 102         case "$_rc_elem" in
 103         */${early_late_divider})        break ;;
 104         esac
 105 done
 106
 107 unset files local_rc
 108
 109 # Now that disks are mounted, for each dir in $local_startup
 110 # search for init scripts that use the new rc.d semantics.
 111 #
 112 case ${local_startup} in
 113 [Nn][Oo] | '') ;;
 114 *)      find_local_scripts_new ;;
 115 esac
 116
 117 # The firstboot sentinel might be on a newly mounted filesystem; look for it
 118 # again and unset skip_firstboot if we find it.
 119 if [ -e ${firstboot_sentinel} ]; then
 120         skip_firstboot=""
 121 fi
 122
 123 files=`rcorder ${skip} ${skip_firstboot} /etc/rc.d/* ${local_rc} 2>/dev/null`
 124 for _rc_elem in ${files}; do
 125         case "$_rc_elem_done" in
 126         *" $_rc_elem "*)        continue ;;
 127         esac
 128
 129         run_rc_script ${_rc_elem} ${_boot}
 130 done
 131
 132 # Remove the firstboot sentinel, and reboot if it was requested.
 133 # Be a bit paranoid about removing it to handle the common failure
 134 # modes since the consequence of failure can be big.
 135 # Note: this assumes firstboot_sentinel is on / when we have
 136 # a read-only /, or that it is on media that's writable.
 137 if [ -e ${firstboot_sentinel} ]; then
 138         [ ${root_rw_mount} = "yes" ] || mount -uw /
 139         chflags -R 0 ${firstboot_sentinel}
 140         rm -rf ${firstboot_sentinel}
 141         if [ -e ${firstboot_sentinel}-reboot ]; then
 142                 chflags -R 0 ${firstboot_sentinel}-reboot
 143                 rm -rf ${firstboot_sentinel}-reboot
 144                 [ ${root_rw_mount} = "yes" ] || mount -ur /
 145                 kill -INT 1
 146         fi
 147         [ ${root_rw_mount} = "yes" ] || mount -ur /
 148 fi
 149
 150 echo ''
 151 date
 152 exit 0