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 1.4 2004/01/26 17:21:15 rob Exp $ 29# 30 31# PROVIDE: diskless 32# REQUIRE: initdiskless rcconf mountcritlocal 33# BEFORE: addswap random 34# KEYWORD: DragonFly 35 36if [ -r /etc/rc.subr ]; then 37 . /etc/rc.subr 38 dummy_rc_command "$1" 39fi 40 41dlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null` 42[ ${dlv:=0} -eq 0 ] && exit 0 43 44name="diskless2" 45 46# Provide a function for normalizing the mounting of memory 47# filesystems. This should allow the rest of the code here to remain 48# as close as possible between 5-current and 4-stable. 49# $1 = size 50# $2 = mount point 51# $3 = (optional) bytes-per-inode 52mount_md() { 53 if [ -n "$3" ]; then 54 bpi="-i $3" 55 fi 56 /sbin/mdmfs $bpi -s $1 -M md $2 57} 58 59# If there is a global system configuration file, suck it in. 60# 61if [ -r /etc/rc.subr ]; then 62 . /etc/rc.subr 63 load_rc_config $name 64elif [ -r /etc/defaults/rc.conf ]; then 65 . /etc/defaults/rc.conf 66 source_rc_confs 67elif [ -r /etc/rc.conf ]; then 68 . /etc/rc.conf 69fi 70 71# If we do not have a writable /var, create a memory 72# filesystem for /var. We don't have /usr yet so 73# use mkdir instead of touch to test. We want mount 74# to record its mounts so we have to make sure /var/db 75# exists before doing the mount -a. 76# 77if (/bin/mkdir /var/.diskless 2> /dev/null); then 78 rmdir /var/.diskless 79else 80 echo "+++ mount_md of /var" 81 mount_md ${varsize:=32m} /var 82fi 83 84if [ ! -d /var/db ]; then 85 mkdir /var/db 86fi 87 88# Now we need the rest of our mounts, particularly /usr 89# 90mount -a # chown and chgrp are in /usr 91 92# Populate /var 93# 94echo "+++ populate /var using /etc/mtree/BSD.var.dist" 95/usr/sbin/mtree -deU -f /etc/mtree/BSD.var.dist -p /var > /dev/null 96case ${sendmail_enable} in 97[Nn][Oo][Nn][Ee]) 98 ;; 99*) 100 /usr/sbin/mtree -deU -f /etc/mtree/BSD.sendmail.dist -p / > /dev/null 101 ;; 102esac 103 104echo "+++ create log files based on the contents of /etc/newsyslog.conf" 105LOGFILES=`/usr/bin/awk '$1 != "#" { printf "%s ", $1 } ' /etc/newsyslog.conf` 106if [ -n "$LOGFILES" ]; then 107 /usr/bin/touch $LOGFILES 108fi 109 110echo "+++ create lastlog" 111/usr/bin/touch /var/log/lastlog 112 113# Make sure our aliases database is uptodate, the aliases may have 114# been overriden in /conf. 115# 116/usr/bin/newaliases 117 118# XXX make sure to create one dir for each printer as requested by lpd 119# 120# If we do not have a writable /tmp, create a memory 121# filesystem for /tmp. If /tmp is a symlink (e.g. to /var/tmp, 122# then it should already be writable). 123# 124if (/bin/mkdir /tmp/.diskless 2> /dev/null); then 125 rmdir /tmp/.diskless 126else 127 if [ -h /tmp ]; then 128 echo "*** /tmp is a symlink to a non-writable area!" 129 echo "dropping into shell, ^D to continue anyway." 130 /bin/sh 131 else 132 mount_md ${tmpsize:=20480} /tmp 133 chmod 01777 /tmp 134 fi 135fi 136 137if sysctl vfs.devfs.generation > /dev/null 2>&1 ; then 138 # we have DEVFS, no worries... 139 true 140elif (/bin/mkdir /dev/.diskless 2> /dev/null); then 141 # if /dev is writable assume it has already been populated 142 # via rc.diskless1 143 # 144 rmdir /dev/.diskless 145else 146 (cd /; find -x dev | cpio -o -H newc) > /tmp/dev.tmp 147 mount_md 4096 /dev 512 148 (cd /; cpio -i -H newc -d < /tmp/dev.tmp) 149 rm -f /tmp/dev.tmp 150fi 151 152# generate our hostname 153# 154if [ -z "`hostname -s`" ]; then 155 hostname=`/bin/kenv dhcp.host-name` 156 hostname $hostname 157 echo "Hostname is $hostname" 158fi 159 160# if the info is available via dhcp/kenv 161# build the resolv.conf 162# 163if [ ! -e /etc/resolv.conf ]; then 164 echo domain `/bin/kenv dhcp.domain-name` > /etc/resolv.conf 165 166 set `/bin/kenv dhcp.domain-name-servers` 167 for ns in `IFS=','; echo $*`; do 168 echo nameserver $ns >> /etc/resolv.conf; 169 done 170fi 171 172