rc.initdiskless revision 100280
1100280Sgordon#!/bin/sh 2100280Sgordon# 366830Sobrien# Copyright (c) 1999 Matt Dillion 466830Sobrien# All rights reserved. 566830Sobrien# 666830Sobrien# Redistribution and use in source and binary forms, with or without 766830Sobrien# modification, are permitted provided that the following conditions 866830Sobrien# are met: 966830Sobrien# 1. Redistributions of source code must retain the above copyright 1066830Sobrien# notice, this list of conditions and the following disclaimer. 1166830Sobrien# 2. Redistributions in binary form must reproduce the above copyright 1266830Sobrien# notice, this list of conditions and the following disclaimer in the 1366830Sobrien# documentation and/or other materials provided with the distribution. 1466830Sobrien# 1566830Sobrien# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1666830Sobrien# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1766830Sobrien# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1866830Sobrien# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1966830Sobrien# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2066830Sobrien# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2166830Sobrien# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2266830Sobrien# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2366830Sobrien# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2466830Sobrien# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2566830Sobrien# SUCH DAMAGE. 2666830Sobrien# 2751231Ssheldonh# $FreeBSD: head/etc/rc.initdiskless 100280 2002-07-18 05:00:17Z gordon $ 2851231Ssheldonh# 2966830Sobrien 30100280Sgordon# PROVIDE: initdiskless 31100280Sgordon# KEYWORD: FreeBSD 32100280Sgordon 33100280Sgordondlv=`/sbin/sysctl -n vfs.nfs.diskless_valid 2> /dev/null` 34100280Sgordon[ ${dlv:=0} -eq 0 ] && exit 0 35100280Sgordon 3666830Sobrien# 3755520Sluigi# BOOTP has mounted / for us. Assume a read-only mount. We must then 3855520Sluigi# - figure out our IP by querying the interface 3975746Sbsd# - mount /etc as an MFS 4088496Srwatson# - populate /etc from /conf/default version 4175746Sbsd# - override files in /etc with files from /conf/*/etc where 4275746Sbsd# '*' is default, netmask of client, ip-address of client 4343803Sdillon# 4455520Sluigi# The operator is in charge of setting /conf/*/etc/* things as appropriate. 4589437Srwatson# Typically rc.conf and fstab need to be changed, but possibly also other 4689437Srwatson# files such as inetd.conf etc. 4743803Sdillon 4843803Sdillon# chkerr: 4943803Sdillon# 5043803Sdillon# Routine to check for error 5143803Sdillon# 5243803Sdillon# checks error code and drops into shell on failure. 5343803Sdillon# if shell exits, terminates script as well as /etc/rc. 5451231Ssheldonh# 55100280Sgordonchkerr() 56100280Sgordon{ 5751231Ssheldonh case $1 in 5851231Ssheldonh 0) 5951231Ssheldonh ;; 6051231Ssheldonh *) 6143803Sdillon echo "$2 failed: dropping into /bin/sh" 6243803Sdillon /bin/sh 6343803Sdillon # RESUME 6451231Ssheldonh ;; 6551231Ssheldonh esac 6643803Sdillon} 6743803Sdillon 68100280Sgordonmount_md() 69100280Sgordon{ 7075931Simp /sbin/mdconfig -a -t malloc -s $1 -u $3 7175931Simp /sbin/disklabel -r -w md$3 auto 7275931Simp /sbin/newfs /dev/md$3c 7375931Simp /sbin/mount /dev/md$3c $2 7475931Simp} 7575931Simp 7643803Sdillon# DEBUGGING 7743803Sdillon# 7855520Sluigi# set -v 7943803Sdillon 8051231Ssheldonh# Figure out our interface and IP. 8143803Sdillon# 8255520Sluigibootp_ifc="" 8355520Sluigibootp_ipa="" 8455520Sluigibootp_ipbca="" 8555520Sluigiiflist=`ifconfig -l` 8655520Sluigifor i in ${iflist} ; do 8755520Sluigi set `ifconfig ${i}` 8855520Sluigi while [ $# -ge 1 ] ; do 8955520Sluigi if [ "${bootp_ifc}" = "" -a "$1" = "inet" ] ; then 9055520Sluigi bootp_ifc=${i} ; bootp_ipa=${2} ; shift 9155520Sluigi fi 9255520Sluigi if [ "${bootp_ipbca}" = "" -a "$1" = "broadcast" ] ; then 9355520Sluigi bootp_ipbca=$2; shift 9455520Sluigi fi 9555520Sluigi shift 9655520Sluigi done 9755520Sluigi if [ "${bootp_ifc}" != "" ] ; then 9855520Sluigi break 9955520Sluigi fi 10055520Sluigidone 10155520Sluigiecho "Interface ${bootp_ifc} IP-Address ${bootp_ipa} Broadcast ${bootp_ipbca}" 10243803Sdillon 10395280Sobrienif [ -z "`hostname -s`" ]; then 104100280Sgordon hostname=`kenv dhcp.host-name` 105100280Sgordon hostname $hostname 10695280Sobrien echo "Hostname is $hostname" 10795280Sobrienfi 10895280Sobrien 10991074Sobrienif [ -d /conf/default/etc ]; then 11091074Sobrien mount_md 4096 /etc 0 11191074Sobrien chkerr $? "MFS mount on /etc" 11291074Sobrien /bin/chmod 755 /etc 11375101Sbsd 11491074Sobrien /bin/cp -Rp /conf/default/etc/* /etc 11591074Sobrien chkerr $? "cp /conf/default/etc to /etc MFS" 11691074Sobrienfi 11743803Sdillon 11889438Srwatson# Allow for override files to replace files in /etc. Use /conf/*/etc to find 11989438Srwatson# the override files. First choice is default files that # always override, 12089438Srwatson# then files that from the directory that matches the client's broadcast 12189438Srwatson# address, finally followed by overrides that match the client's IP address. 12243803Sdillon# 12389438Srwatson# This way we have some flexibility to handle clusters of machines on 12489438Srwatson# separate subnets. 12543803Sdillon 12695280Sobrienfor i in ${bootp_ipbca} ${bootp_ipa} ${hostname} ; do 12775746Sbsd if [ -d /conf/${i}/etc ]; then 12875746Sbsd cp -Rp /conf/${i}/etc/* /etc 12975746Sbsd fi 13075746Sbsddone 13175746Sbsd 13295280Sobrien# 13395280Sobrien# if the info is available via dhcp/kenv 13495280Sobrien# build the resolv.conf 13595280Sobrien# 13695280Sobrienif [ ! -e /etc/resolv.conf ]; then 137100280Sgordon echo domain `kenv dhcp.domain-name` > /etc/resolv.conf 13895280Sobrien 139100280Sgordon set `kenv dhcp.domain-name-servers` 140100280Sgordon for ns in `IFS=','; echo $*`; do 141100280Sgordon echo nameserver $ns >> /etc/resolv.conf; 142100280Sgordon done 14395280Sobrienfi 144