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# $DragonFly: src/etc/rc.d/diskless,v 1.5 2005/11/19 21:47:32 swildner Exp $ 29# 30 31# PROVIDE: diskless 32# REQUIRE: initdiskless rcconf mountcritlocal 33# BEFORE: addswap random 34 35if [ -r /etc/rc.subr ]; then 36 . /etc/rc.subr 37 dummy_rc_command "$1" 38fi 39 40dlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null` 41[ ${dlv:=0} -eq 0 ] && exit 0 42 43name="diskless2" 44 45# Provide a function for normalizing the mounting of memory 46# filesystems. This should allow the rest of the code here to remain 47# as close as possible between 5-current and 4-stable. 48# $1 = size 49# $2 = mount point 50# $3 = (optional) bytes-per-inode 51mount_md() { 52 if [ -n "$3" ]; then 53 bpi="-i $3" 54 fi 55 /sbin/mdmfs $bpi -s $1 -M md $2 56} 57 58# If there is a global system configuration file, suck it in. 59# 60if [ -r /etc/rc.subr ]; then 61 . /etc/rc.subr 62 load_rc_config $name 63elif [ -r /etc/defaults/rc.conf ]; then 64 . /etc/defaults/rc.conf 65 source_rc_confs 66elif [ -r /etc/rc.conf ]; then 67 . /etc/rc.conf 68fi 69 70# If we do not have a writable /var, create a memory 71# filesystem for /var. We don't have /usr yet so 72# use mkdir instead of touch to test. We want mount 73# to record its mounts so we have to make sure /var/db 74# exists before doing the mount -a. 75# 76if (/bin/mkdir /var/.diskless 2> /dev/null); then 77 rmdir /var/.diskless 78else 79 echo "+++ mount_md of /var" 80 mount_md ${varsize:=32m} /var 81fi 82 83if [ ! -d /var/db ]; then 84 mkdir /var/db 85fi 86 87# Now we need the rest of our mounts, particularly /usr 88# 89mount -a # chown and chgrp are in /usr 90 91# Populate /var 92# 93echo "+++ populate /var using /etc/mtree/BSD.var.dist" 94/usr/sbin/mtree -deU -f /etc/mtree/BSD.var.dist -p /var > /dev/null 95case ${sendmail_enable} in 96[Nn][Oo][Nn][Ee]) 97 ;; 98*) 99 /usr/sbin/mtree -deU -f /etc/mtree/BSD.sendmail.dist -p / > /dev/null 100 ;; 101esac 102 103echo "+++ create log files based on the contents of /etc/newsyslog.conf" 104LOGFILES=`/usr/bin/awk '$1 != "#" { printf "%s ", $1 } ' /etc/newsyslog.conf` 105if [ -n "$LOGFILES" ]; then 106 /usr/bin/touch $LOGFILES 107fi 108 109echo "+++ create lastlog" 110/usr/bin/touch /var/log/lastlog 111 112# Make sure our aliases database is uptodate, the aliases may have 113# been overriden in /conf. 114# 115/usr/bin/newaliases 116 117# XXX make sure to create one dir for each printer as requested by lpd 118# 119# If we do not have a writable /tmp, create a memory 120# filesystem for /tmp. If /tmp is a symlink (e.g. to /var/tmp, 121# then it should already be writable). 122# 123if (/bin/mkdir /tmp/.diskless 2> /dev/null); then 124 rmdir /tmp/.diskless 125else 126 if [ -h /tmp ]; then 127 echo "*** /tmp is a symlink to a non-writable area!" 128 echo "dropping into shell, ^D to continue anyway." 129 /bin/sh 130 else 131 mount_md ${tmpsize:=20480} /tmp 132 chmod 01777 /tmp 133 fi 134fi 135 136if sysctl vfs.devfs.generation > /dev/null 2>&1 ; then 137 # we have DEVFS, no worries... 138 true 139elif (/bin/mkdir /dev/.diskless 2> /dev/null); then 140 # if /dev is writable assume it has already been populated 141 # via rc.diskless1 142 # 143 rmdir /dev/.diskless 144else 145 (cd /; find -x dev | cpio -o -H newc) > /tmp/dev.tmp 146 mount_md 4096 /dev 512 147 (cd /; cpio -i -H newc -d < /tmp/dev.tmp) 148 rm -f /tmp/dev.tmp 149fi 150 151# generate our hostname 152# 153if [ -z "`hostname -s`" ]; then 154 hostname=`/bin/kenv dhcp.host-name` 155 hostname $hostname 156 echo "Hostname is $hostname" 157fi 158 159# if the info is available via dhcp/kenv 160# build the resolv.conf 161# 162if [ ! -e /etc/resolv.conf ]; then 163 echo domain `/bin/kenv dhcp.domain-name` > /etc/resolv.conf 164 165 set `/bin/kenv dhcp.domain-name-servers` 166 for ns in `IFS=','; echo $*`; do 167 echo nameserver $ns >> /etc/resolv.conf; 168 done 169fi 170 171