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#! /bin/sh
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# $Id$
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#*********************************************************************
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#
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# make-fai-bootfloppy -- create a boot floppy for FAI
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#
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# This script is part of FAI (Fully Automatic Installation)
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# (c) 2000-2002 by Thomas Lange, lange@informatik.uni-koeln.de
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# Universitaet zu Koeln
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#
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#*********************************************************************
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# A copy of the GNU General Public License is available as
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# `/usr/share/common-licences/GPL' in the Debian GNU/Linux distribution
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# or on the World Wide Web at http://www.gnu.org/copyleft/gpl.html. You
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# can also obtain it by writing to the Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#*********************************************************************
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version="version 1.7, february 2001"
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set -e
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MKIMAGE=0
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floppydev=/dev/fd0
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mountopts=""
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trap "umount_dirs" EXIT
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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umount_dirs() {
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cd /
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umount /floppy
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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die() {
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echo -e "$@"
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exit 99
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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determine_kernel_version() {
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local num all
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all=$(ls $NFSROOT/boot/System.map-*)
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if [ `echo $all | wc -l ` = 1 ]; then
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KERNELVERSION=$(echo "kernel version $all" | sed -e 's#.*/System.map-##')
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else
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die "Can't determine kernel version for $all"
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fi
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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usage() {
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cat <<EOF
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make-fai-bootfloppy, create a boot floppy for FAI. $version
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Copyright (C) 2000, 2001 by Thomas Lange
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Usage: make-fai-bootfloppy [parameter]
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-h print this message.
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-s host use a static ip for host (try to get from DNS)
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-f file make a 1440k floppy image
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DESCRIPTION
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Creates a boot floppy for booting a FAI install client.
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No arguments are needed but you must be root.
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All parameters are passed to the kernel via append in lilo.conf.
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EXAMPLE
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To make a boot floppy for my old SMC EtherCard Plus Elite 16T, I use
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# make-fai-bootfloppy "reserve=0x300,32 ether=10,0x300,eth0"
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EOF
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exit 0
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}
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# - - - - - - - - - - - - - - - - - - - - - - - - - -
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# main part
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while getopts "f:s:h" opt ; do
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case "$opt" in
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h) usage ;;
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f) MKIMAGE=1; floppydev="$OPTARG";;
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s) TARGETHOST="$OPTARG" ;;
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?) echo "Error parsing arguments"; exit 1;;
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esac
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done
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shift `expr $OPTIND - 1`
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if [ "$UID" -ne 0 ]; then
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echo "You must be root!"
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exit 9
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fi
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# additional kernel parameter
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params="$@"
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. /etc/fai/fai.conf
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determine_kernel_version
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grep -q ic_bootp $NFSROOT/boot/System.map-$KERNELVERSION && TYPE=BOOTP
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grep -q ic_dhcp $NFSROOT/boot/System.map-$KERNELVERSION && TYPE=DHCP
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[ "$TYPE" ] || die "Can't determine kernel boot protocol.\nMaybe there's no $NFSROOT/boot/System.map-$KERNELVERSION"
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ndevices=0
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devices=`egrep -v "lo:|^Inter-|^ face" /proc/net/dev | awk -F: '{print $1}'`
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for dev in $devices; do
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ndevices=$(($ndevices+1))
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done
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[ $ndevices = 0 ] && die "No network interface found. Can't determine IP address."
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if [ $ndevices = 1 ]; then
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SERVERINTERFACE=$dev
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else
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while [ -z "$SERVERINTERFACE" ]; do
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echo "Your machine has multiple network interfaces: $devices"
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echo -n "Specify which one will be used for FAI (eg. eth1): "
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read SERVERINTERFACE
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done
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fi
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SERVERIP=`LC_ALL=C ifconfig $SERVERINTERFACE | perl -ne '/inet addr:([0-9\.]+)/ && print $1'`
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echo "Using interface $SERVERINTERFACE with IP address: $SERVERIP"
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if [ -n "${TARGETHOST}" ] ; then
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BROADCAST=`LC_ALL=C ifconfig $SERVERINTERFACE | perl -ne '/Bcast:([0-9\.]+)/ && print $1'`
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NETMASK=`LC_ALL=C ifconfig $SERVERINTERFACE | perl -ne '/Mask:([0-9\.]+)/ && print $1'`
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GATEWAY=`LC_ALL=C route -n | grep '^0\.0\.0\.0' | awk '{ print $2 }'`
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TARGETIP=`host -t a ${TARGETHOST} 2> /dev/null | awk '{print $3}'`
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params="ip=${TARGETIP}:${SERVERIP}:${GATEWAY}:${NETMASK}:${TARGETHOST}::off $params"
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fi
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unset SERVERINTERFACE ndevices devices dev BROADCAST NETMASK GATEWAY TARGETIP
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if [ $MKIMAGE -eq 1 ]; then
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dd if=/dev/zero of=$floppydev bs=1024 count=1440
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mountopts="$mountopts -o loop"
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mkfsopt=-F
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fi
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mke2fs $mkfsopt -q -i 8192 -m 0 $floppydev || die "Can't create ext2 file system on $floppydev"
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mount $mountopts $floppydev /floppy || die "Can't mount floppy $floppydev"
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mkdir /floppy/boot /floppy/etc
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cd $NFSROOT/boot
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# do not copy System.map*
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cp -dp map chain* boot* vmlinuz-$KERNELVERSION /floppy/boot 2>/dev/null || true
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ln -s boot/vmlinuz-$KERNELVERSION /floppy/vmlinuz
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# since lilo 21.5, boot.b is a link
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[ -e /floppy/boot/boot.b ] || ln -fs /floppy/boot/boot-compat.b /floppy/boot/boot.b
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[ $MKIMAGE -eq 1 ] && cat > /floppy/etc/lilo.conf << EOF
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disk=/dev/loop0
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bios=0x00
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cylinders=80
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heads=2
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sectors=18
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EOF
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cat >> /floppy/etc/lilo.conf <<-EOF
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boot=$floppydev
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root=$NFSROOT/dev/boot255
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install=/floppy/boot/boot.b
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map=/floppy/boot/map
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append="nfsroot=$SERVERIP:$NFSROOT $params"
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delay=10
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compact
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image=/floppy/vmlinuz
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label=FAI-$TYPE
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read-only
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EOF
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$NFSROOT/sbin/lilo -C /floppy/etc/lilo.conf
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cat <<EOF
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Writing boot data to floppy.
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boot protocol : $TYPE
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nfsroot : $SERVERIP:$NFSROOT
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parameters : $params
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The kernel configuration is $NFSROOT/boot/config-$KERNELVERSION-$TYPE.
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EOF
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