1#!/bin/sh 2# 3# Copyright (c) 1999 Matt Dillon 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# $FreeBSD: src/etc/rc.d/diskless,v 1.25 2003/02/15 16:34:14 jhay Exp $ 28# 29 30# PROVIDE: diskless 31# REQUIRE: initdiskless rcconf mountcritlocal 32# BEFORE: FILESYSTEMS 33 34if [ -r /etc/rc.subr ]; then 35 . /etc/rc.subr 36 dummy_rc_command "$1" 37fi 38 39dlv=`${SYSCTL_N} -q vfs.nfs.diskless_valid` 40[ ${dlv:=0} -eq 0 ] && exit 0 41 42# Provide a function for normalizing the mounting of memory filesystems. 43# $1 = size 44# $2 = mount point 45mount_md() { 46 /sbin/mount_tmpfs -s $1 tmpfs $2 47} 48 49# If there is a global system configuration file, suck it in. 50# 51if [ -r /etc/rc.subr ]; then 52 . /etc/rc.subr 53 load_rc_config $name 54elif [ -r /etc/defaults/rc.conf ]; then 55 . /etc/defaults/rc.conf 56 source_rc_confs 57elif [ -r /etc/rc.conf ]; then 58 . /etc/rc.conf 59fi 60 61# Try to mount root r/w. If a workable /etc/fstab is present 62# this may give us a RW mount. 63# 64mount -u / 65 66if (echo "" | dd of=/var/.diskless 2> /dev/null); then 67 echo "diskless: /var is writable" 68else 69 echo "+++ mount_md of /var" 70 mount_md ${varsize:=16M} /var 71fi 72 73if [ ! -d /var/db ]; then 74 mkdir /var/db 75fi 76 77# Now we need the rest of our mounts, particularly /usr 78# 79mount -a # chown and chgrp are in /usr 80 81# Populate /var 82# 83echo "+++ populate /var using /etc/mtree/BSD.var.dist" 84/usr/sbin/mtree -deU -f /etc/mtree/BSD.var.dist -p /var > /dev/null 85case ${sendmail_enable} in 86[Nn][Oo][Nn][Ee]) 87 ;; 88*) 89 /usr/sbin/mtree -deU -f /etc/mtree/BSD.sendmail.dist -p / > /dev/null 90 ;; 91esac 92 93echo "+++ create log files based on the contents of /etc/newsyslog.conf" 94LOGFILES=`/usr/bin/awk '$1 != "#" { printf "%s ", $1 } ' /etc/newsyslog.conf` 95if [ -n "$LOGFILES" ]; then 96 /usr/bin/touch $LOGFILES 97fi 98 99echo "+++ create lastlogx" 100/usr/bin/touch /var/log/lastlogx 101 102# XXX make sure to create one dir for each printer as requested by lpd 103# 104# If we do not have a writable /tmp, create a memory 105# filesystem for /tmp. If /tmp is a symlink (e.g. to /var/tmp, 106# then it should already be writable). 107# 108if (echo "" | dd of=/tmp/.diskless 2> /dev/null); then 109 echo "diskless: /tmp is writable" 110else 111 if [ -h /tmp ]; then 112 echo "*** /tmp is a symlink to a non-writable area!" 113 echo "dropping into shell, ^D to continue anyway." 114 /bin/sh 115 else 116 mount_md ${tmpsize:=10M} /tmp 117 chmod 01777 /tmp 118 fi 119fi 120 121# generate our hostname 122# 123if [ -z "`hostname -s`" ]; then 124 hostname=`/usr/bin/kenv dhcp.host-name` 125 hostname $hostname 126 echo "Hostname is $hostname" 127fi 128 129# if the info is available via dhcp/kenv 130# build the resolv.conf 131# 132if [ ! -e /etc/resolv.conf ]; then 133 echo domain `/usr/bin/kenv dhcp.domain-name` > /etc/resolv.conf 134 135 set `/usr/bin/kenv dhcp.domain-name-servers` 136 for ns in `IFS=','; echo $*`; do 137 echo nameserver $ns >> /etc/resolv.conf; 138 done 139fi 140