rc.initdiskless revision 89437
198184Sgordon# Copyright (c) 1999 Matt Dillion 298184Sgordon# All rights reserved. 398184Sgordon# 498184Sgordon# Redistribution and use in source and binary forms, with or without 598184Sgordon# modification, are permitted provided that the following conditions 698184Sgordon# are met: 798184Sgordon# 1. Redistributions of source code must retain the above copyright 898184Sgordon# notice, this list of conditions and the following disclaimer. 998184Sgordon# 2. Redistributions in binary form must reproduce the above copyright 1098184Sgordon# notice, this list of conditions and the following disclaimer in the 1198184Sgordon# documentation and/or other materials provided with the distribution. 1298184Sgordon# 1398184Sgordon# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1498184Sgordon# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1598184Sgordon# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1698184Sgordon# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1798184Sgordon# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1898184Sgordon# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 1998184Sgordon# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2098184Sgordon# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2198184Sgordon# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2298184Sgordon# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2398184Sgordon# SUCH DAMAGE. 2498184Sgordon# 2598184Sgordon# $FreeBSD: head/etc/rc.initdiskless 89437 2002-01-17 00:08:44Z rwatson $ 2698184Sgordon# 2798184Sgordon 2898184Sgordon# 2998184Sgordon# /etc/rc.diskless1 - general BOOTP startup 3098184Sgordon# 3198184Sgordon# BOOTP has mounted / for us. Assume a read-only mount. We must then 3298184Sgordon# - figure out our IP by querying the interface 3398184Sgordon# - mount /etc as an MFS 3498184Sgordon# - populate /etc from /conf/default version 3598184Sgordon# - override files in /etc with files from /conf/*/etc where 3698184Sgordon# '*' is default, netmask of client, ip-address of client 3798184Sgordon# 3898184Sgordon# The operator is in charge of setting /conf/*/etc/* things as appropriate. 3998184Sgordon# Typically rc.conf and fstab need to be changed, but possibly also other 4098184Sgordon# files such as inetd.conf etc. 4198184Sgordon 4298184Sgordon# chkerr: 4398184Sgordon# 4498184Sgordon# Routine to check for error 4598184Sgordon# 4698184Sgordon# checks error code and drops into shell on failure. 4798184Sgordon# if shell exits, terminates script as well as /etc/rc. 4898184Sgordon# 4998184Sgordonchkerr() { 5098184Sgordon case $1 in 5198184Sgordon 0) 5298184Sgordon ;; 5398184Sgordon *) 5498184Sgordon echo "$2 failed: dropping into /bin/sh" 5598184Sgordon /bin/sh 5698184Sgordon # RESUME 5798184Sgordon ;; 5898184Sgordon esac 5998184Sgordon} 6098184Sgordon 6198184Sgordonmount_md() { 6298184Sgordon /sbin/mdconfig -a -t malloc -s $1 -u $3 6398184Sgordon /sbin/disklabel -r -w md$3 auto 6498184Sgordon /sbin/newfs /dev/md$3c 6598184Sgordon /sbin/mount /dev/md$3c $2 6698184Sgordon} 6798184Sgordon 6898184Sgordon# DEBUGGING 6998184Sgordon# 7098184Sgordon# set -v 71 72# Figure out our interface and IP. 73# 74bootp_ifc="" 75bootp_ipa="" 76bootp_ipbca="" 77iflist=`ifconfig -l` 78for i in ${iflist} ; do 79 set `ifconfig ${i}` 80 while [ $# -ge 1 ] ; do 81 if [ "${bootp_ifc}" = "" -a "$1" = "inet" ] ; then 82 bootp_ifc=${i} ; bootp_ipa=${2} ; shift 83 fi 84 if [ "${bootp_ipbca}" = "" -a "$1" = "broadcast" ] ; then 85 bootp_ipbca=$2; shift 86 fi 87 shift 88 done 89 if [ "${bootp_ifc}" != "" ] ; then 90 break 91 fi 92done 93echo "Interface ${bootp_ifc} IP-Address ${bootp_ipa} Broadcast ${bootp_ipbca}" 94 95 96mount_md 4096 /etc 0 97chkerr $? "MFS mount on /etc" 98/bin/chmod 755 /etc 99 100/bin/cp -Rp /conf/default/etc/* /etc 101chkerr $? "cp /conf/default/etc to /etc MFS" 102 103# Allow for override files to replace files in /etc. Use /conf/*/etc 104# to find the override files. First choice is default files that 105# always override, then files that from the directory that matches the 106# client's broadcast address, finally followed by overrides that match 107# the client's IP address. 108# 109# This way we have some flexibility to handle clusters of machines 110# on separate subnets. 111# 112 113for i in ${bootp_ipbca} ${bootp_ipa} ; do 114 if [ -d /conf/${i}/etc ]; then 115 cp -Rp /conf/${i}/etc/* /etc 116 fi 117done 118 119# Tell /etc/rc to run the specified script after 120# it does its mounts but before it does anything 121# else. 122# 123# This script is responsible for setting up the 124# diskless mount environment. This can be 125# overriden by /conf/ME/rc.conf.local if, for 126# example, you do not want to run the standard 127# system /etc/rc.diskless2 128 129diskless_mount="/etc/rc.diskless2" 130