xref: /freebsd/libexec/rc/rc (revision 9768746b)
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
41stty 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#
46trap : 2
47trap "echo 'Boot interrupted'; exit 1" 3
48
49HOME=/
50PATH=/sbin:/bin:/usr/sbin:/usr/bin
51export HOME PATH
52
53if [ "$1" = autoboot ]; then
54	autoboot=yes
55	_boot="faststart"
56	rc_fast=yes        # run_rc_command(): do fast booting
57else
58	autoboot=no
59	_boot="quietstart"
60fi
61
62_localbase=`/sbin/sysctl -n user.localbase 2> /dev/null`
63
64dlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null`
65if [ ${dlv:=0} -ne 0 -o -f /etc/diskless ]; then
66	sh /etc/rc.initdiskless
67fi
68
69# Run these after determining whether we are booting diskless in order
70# to minimize the number of files that are needed on a diskless system,
71# and to make the configuration file variables available to rc itself.
72#
73. /etc/rc.subr
74load_rc_config
75
76# If we receive a SIGALRM, re-source /etc/rc.conf; this allows rc.d
77# scripts to perform "boot-time configuration" including enabling and
78# disabling rc.d scripts which appear later in the boot order.
79trap "_rc_conf_loaded=false; load_rc_config" ALRM
80
81skip="-s nostart"
82if [ `/sbin/sysctl -n security.jail.jailed` -eq 1 ]; then
83	skip="$skip -s nojail"
84	if [ `/sbin/sysctl -n security.jail.vnet` -ne 1 ]; then
85		skip="$skip -s nojailvnet"
86	fi
87fi
88
89# If the firstboot sentinel doesn't exist, we want to skip firstboot scripts.
90if ! [ -e ${firstboot_sentinel} ]; then
91	skip_firstboot="-s firstboot"
92fi
93
94# Do a first pass to get everything up to $early_late_divider so that
95# we can do a second pass that includes $local_startup directories
96#
97files=`rcorder ${skip} ${skip_firstboot} /etc/rc.d/* 2>/dev/null`
98
99_rc_elem_done=' '
100for _rc_elem in ${files}; do
101	run_rc_script ${_rc_elem} ${_boot}
102	_rc_elem_done="${_rc_elem_done}${_rc_elem} "
103
104	case "$_rc_elem" in
105	*/${early_late_divider})	break ;;
106	esac
107done
108
109unset files local_rc
110
111# Now that disks are mounted, for each dir in $local_startup
112# search for init scripts that use the new rc.d semantics.
113#
114case ${local_startup} in
115[Nn][Oo] | '') ;;
116*)	find_local_scripts_new ;;
117esac
118
119# The firstboot sentinel might be on a newly mounted filesystem; look for it
120# again and unset skip_firstboot if we find it.
121if [ -e ${firstboot_sentinel} ]; then
122	skip_firstboot=""
123fi
124
125files=`rcorder ${skip} ${skip_firstboot} /etc/rc.d/* ${local_rc} 2>/dev/null`
126for _rc_elem in ${files}; do
127	case "$_rc_elem_done" in
128	*" $_rc_elem "*)	continue ;;
129	esac
130
131	run_rc_script ${_rc_elem} ${_boot}
132done
133
134# Remove the firstboot sentinel, and reboot if it was requested.
135# Be a bit paranoid about removing it to handle the common failure
136# modes since the consequence of failure can be big.
137# Note: this assumes firstboot_sentinel is on / when we have
138# a read-only /, or that it is on media that's writable.
139if [ -e ${firstboot_sentinel} ]; then
140	checkyesno root_rw_mount || mount -uw /
141	chflags -R 0 ${firstboot_sentinel}
142	rm -rf ${firstboot_sentinel}
143	if [ -e ${firstboot_sentinel}-reboot ]; then
144		chflags -R 0 ${firstboot_sentinel}-reboot
145		rm -rf ${firstboot_sentinel}-reboot
146		checkyesno root_rw_mount || mount -ur /
147		kill -INT 1
148	fi
149	checkyesno root_rw_mount || mount -ur /
150fi
151
152echo ''
153date
154exit 0
155