#!/bin/bash -e # **build_pxe_env.sh** # Create a PXE boot environment # # build_pxe_env.sh destdir # # Requires Ubuntu Oneiric # # Only needs to run as root if the destdir permissions require it dpkg -l syslinux || apt-get install -y syslinux DEST_DIR=${1:-/tmp}/tftpboot PXEDIR=${PXEDIR:-/opt/ramstack/pxe} PROGDIR=`dirname $0` # Clean up any resources that may be in use cleanup() { set +o errexit # Mop up temporary files if [ -n "$MNTDIR" -a -d "$MNTDIR" ]; then umount $MNTDIR rmdir $MNTDIR fi # Kill ourselves to signal any calling process trap 2; kill -2 $$ } trap cleanup SIGHUP SIGINT SIGTERM SIGQUIT EXIT # Keep track of the current directory TOOLS_DIR=$(cd $(dirname "$0") && pwd) TOP_DIR=`cd $TOOLS_DIR/..; pwd` mkdir -p $DEST_DIR/pxelinux.cfg cd $DEST_DIR for i in memdisk menu.c32 pxelinux.0; do cp -pu /usr/lib/syslinux/$i $DEST_DIR done CFG=$DEST_DIR/pxelinux.cfg/default cat >$CFG <<EOF default menu.c32 prompt 0 timeout 0 MENU TITLE devstack PXE Boot Menu EOF # Setup devstack boot mkdir -p $DEST_DIR/ubuntu if [ ! -d $PXEDIR ]; then mkdir -p $PXEDIR fi # Get image into place if [ ! -r $PXEDIR/stack-initrd.img ]; then cd $TOP_DIR $PROGDIR/build_ramdisk.sh $PXEDIR/stack-initrd.img fi if [ ! -r $PXEDIR/stack-initrd.gz ]; then gzip -1 -c $PXEDIR/stack-initrd.img >$PXEDIR/stack-initrd.gz fi cp -pu $PXEDIR/stack-initrd.gz $DEST_DIR/ubuntu if [ ! -r $PXEDIR/vmlinuz-*-generic ]; then MNTDIR=`mktemp -d --tmpdir mntXXXXXXXX` mount -t ext4 -o loop $PXEDIR/stack-initrd.img $MNTDIR if [ ! -r $MNTDIR/boot/vmlinuz-*-generic ]; then echo "No kernel found" umount $MNTDIR rmdir $MNTDIR exit 1 else cp -pu $MNTDIR/boot/vmlinuz-*-generic $PXEDIR fi umount $MNTDIR rmdir $MNTDIR fi # Get generic kernel version KNAME=`basename $PXEDIR/vmlinuz-*-generic` KVER=${KNAME#vmlinuz-} cp -pu $PXEDIR/vmlinuz-$KVER $DEST_DIR/ubuntu cat >>$CFG <<EOF LABEL devstack MENU LABEL ^devstack MENU DEFAULT KERNEL ubuntu/vmlinuz-$KVER APPEND initrd=ubuntu/stack-initrd.gz ramdisk_size=2109600 root=/dev/ram0 EOF # Get Ubuntu if [ -d $PXEDIR -a -r $PXEDIR/natty-base-initrd.gz ]; then cp -pu $PXEDIR/natty-base-initrd.gz $DEST_DIR/ubuntu cat >>$CFG <<EOF LABEL ubuntu MENU LABEL ^Ubuntu Natty KERNEL ubuntu/vmlinuz-$KVER APPEND initrd=ubuntu/natty-base-initrd.gz ramdisk_size=419600 root=/dev/ram0 EOF fi # Local disk boot cat >>$CFG <<EOF LABEL local MENU LABEL ^Local disk LOCALBOOT 0 EOF trap cleanup SIGHUP SIGINT SIGTERM SIGQUIT EXIT