Merge pull request #32 from dtroyer/master
PXE tftpboot and image creation
This commit is contained in:
Jesse Andrews
commit
183f4a52fc
3 changed files with 209 additions and 17 deletions
115
build_pxe_boot.sh
Executable file
115
build_pxe_boot.sh
Executable file
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@ -0,0 +1,115 @@
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#!/bin/bash -e
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# build_pxe_boot.sh - Create a PXE boot environment
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#
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# build_pxe_boot.sh [-k kernel-version] destdir
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#
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# Assumes syslinux is installed
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# Assumes devstack files are in `pwd`/pxe
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# Only needs to run as root if the destdir permissions require it
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UBUNTU_MIRROR=http://archive.ubuntu.com/ubuntu/dists/natty/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64
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MEMTEST_VER=4.10
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MEMTEST_BIN=memtest86+-${MEMTEST_VER}.bin
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MEMTEST_URL=http://www.memtest.org/download/${MEMTEST_VER}/
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KVER=`uname -r`
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if [ "$1" = "-k" ]; then
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KVER=$2
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shift;shift
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fi
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DEST_DIR=${1:-/tmp}/tftpboot
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OPWD=`pwd`
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PROGDIR=`dirname $0`
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mkdir -p $DEST_DIR/pxelinux.cfg
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cd $DEST_DIR
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for i in memdisk menu.c32 pxelinux.0; do
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cp -p /usr/lib/syslinux/$i $DEST_DIR
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done
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DEFAULT=$DEST_DIR/pxelinux.cfg/default
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cat >$DEFAULT <<EOF
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default menu.c32
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prompt 0
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timeout 0
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MENU TITLE PXE Boot Menu
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EOF
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# Setup devstack boot
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mkdir -p $DEST_DIR/ubuntu
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if [ ! -d $OPWD/pxe ]; then
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mkdir -p $OPWD/pxe
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fi
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if [ ! -r $OPWD/pxe/vmlinuz-${KVER} ]; then
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sudo chmod 644 /boot/vmlinuz-${KVER}
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if [ ! -r /boot/vmlinuz-${KVER} ]; then
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echo "No kernel found"
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else
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cp -p /boot/vmlinuz-${KVER} $OPWD/pxe
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fi
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fi
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cp -p $OPWD/pxe/vmlinuz-${KVER} $DEST_DIR/ubuntu
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if [ ! -r $OPWD/pxe/stack-initrd.gz ]; then
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cd $OPWD
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sudo $PROGDIR/build_pxe_ramdisk.sh $OPWD/pxe/stack-initrd.gz
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fi
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cp -p $OPWD/pxe/stack-initrd.gz $DEST_DIR/ubuntu
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cat >>$DEFAULT <<EOF
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LABEL devstack
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MENU LABEL ^devstack
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MENU DEFAULT
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KERNEL ubuntu/vmlinuz-$KVER
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APPEND initrd=ubuntu/stack-initrd.gz ramdisk_size=2109600 root=/dev/ram0
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EOF
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# Get Ubuntu
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if [ -d $OPWD/pxe ]; then
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cp -p $OPWD/pxe/natty-base-initrd.gz $DEST_DIR/ubuntu
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fi
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cat >>$DEFAULT <<EOF
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LABEL ubuntu
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MENU LABEL ^Ubuntu Natty
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KERNEL ubuntu/vmlinuz-$KVER
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APPEND initrd=ubuntu/natty-base-initrd.gz ramdisk_size=419600 root=/dev/ram0
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EOF
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# Get Memtest
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cd $DEST_DIR
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if [ ! -r $MEMTEST_BIN ]; then
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wget -N --quiet ${MEMTEST_URL}/${MEMTEST_BIN}.gz
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gunzip $MEMTEST_BIN
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fi
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cat >>$DEFAULT <<EOF
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LABEL memtest
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MENU LABEL ^Memtest86+
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KERNEL $MEMTEST_BIN
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EOF
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# Get FreeDOS
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mkdir -p $DEST_DIR/freedos
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cd $DEST_DIR/freedos
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wget -N --quiet http://www.fdos.org/bootdisks/autogen/FDSTD.288.gz
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gunzip -f FDSTD.288.gz
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cat >>$DEFAULT <<EOF
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LABEL freedos
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MENU LABEL ^FreeDOS bootdisk
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KERNEL memdisk
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APPEND initrd=freedos/FDSTD.288
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EOF
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# Local disk boot
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cat >>$DEFAULT <<EOF
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LABEL local
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MENU LABEL ^Local disk
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MENU DEFAULT
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LOCALBOOT 0
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EOF
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@ -6,17 +6,19 @@ if [ ! "$#" -eq "1" ]; then
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exit 1
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fi
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PROGDIR=`dirname $0`
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# Source params
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source ./stackrc
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# clean install of natty
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if [ ! -d natty-base ]; then
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debootstrap natty natty-base
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$PROGDIR/make_image.sh -C natty natty-base
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# copy kernel modules...
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# NOTE(ja): is there a better way to do this?
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cp -pr /lib/modules/`uname -r` natty-base/lib/modules
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cp files/sources.list natty-base/etc/apt/sources.list
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chroot natty-base apt-get update
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# a simple password - pass
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echo root:pass | chroot natty-base chpasswd
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fi
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# prime natty with as many apt/pips as we can
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103
make_image.sh
103
make_image.sh
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@ -1,27 +1,40 @@
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#!/bin/bash
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# make_image.sh - Create Ubuntu images in various formats
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#
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# make_image.sh release format
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#
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# Supported formats: qcow (kvm), vmdk (vmserver), vdi (vbox), vhd (vpc), raw
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#
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# Requires sudo to root
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ROOTSIZE=${ROOTSIZE:-8192}
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SWAPSIZE=${SWAPSIZE:-1024}
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MIN_PKGS=${MIN_PKGS:-"apt-utils gpgv openssh-server"}
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usage() {
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echo "$0 - Create Ubuntu images"
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echo "Usage: $0 - Create Ubuntu images"
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echo ""
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echo "$0 [-r rootsize] [-s swapsize] release format"
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echo "$0 [-m] [-r rootsize] [-s swapsize] release format"
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echo "$0 -C [-m] release chrootdir"
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echo "$0 -I [-r rootsize] [-s swapsize] chrootdir format"
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echo ""
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echo "-C - Create the initial chroot dir"
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echo "-I - Create the final image from a chroot"
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echo "-m - minimal installation"
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echo "-r size - root fs size in MB"
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echo "-s size - swap fs size in MB"
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echo "release - Ubuntu release: jaunty - oneric"
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echo "format - image format: qcow2, vmdk, vdi, vhd, xen, raw, fs"
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exit 1
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}
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while getopts hm:r:s: c; do
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while getopts CIhmr:s: c; do
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case $c in
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C) CHROOTONLY=1
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;;
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I) IMAGEONLY=1
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;;
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h) usage
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;;
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m) MIRROR=$OPTARG
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m) MINIMAL=1
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;;
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r) ROOTSIZE=$OPTARG
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;;
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@ -31,8 +44,26 @@ while getopts hm:r:s: c; do
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done
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shift `expr $OPTIND - 1`
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if [ ! "$#" -eq "2" -o -n "$CHROOTONLY" -a -n "$IMAGEONLY" ]; then
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usage
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fi
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# Default args
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RELEASE=$1
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FORMAT=$2
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CHROOTDIR=""
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if [ -n "$CHROOTONLY" ]; then
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RELEASE=$1
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CHROOTDIR=$2
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FORMAT="pass"
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fi
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if [ -n "$IMAGEONLY" ]; then
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CHROOTDIR=$1
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FORMAT=$2
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RELEASE="pass"
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fi
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case $FORMAT in
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kvm|qcow2) FORMAT=qcow2
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@ -60,6 +91,7 @@ case $FORMAT in
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QFORMAT=raw
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HYPER=kvm
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;;
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pass) ;;
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*) echo "Unknown format: $FORMAT"
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usage
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esac
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@ -70,6 +102,7 @@ case $RELEASE in
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lucid) ;;
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karmic) ;;
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jaunty) ;;
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pass) ;;
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*) echo "Unknown release: $RELEASE"
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usage
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;;
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@ -80,17 +113,59 @@ if [ -z `which vmbuilder` ]; then
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sudo apt-get install ubuntu-vm-builder
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fi
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if [ -n "$CHROOTONLY" ]; then
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# Build a chroot directory
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HYPER=kvm
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if [ "$MINIMAL" = 1 ]; then
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ARGS="--variant=minbase"
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for i in $MIN_PKGS; do
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ARGS="$ARGS --addpkg=$i"
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done
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fi
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sudo vmbuilder $HYPER ubuntu $ARGS \
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--suite $RELEASE \
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--only-chroot \
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--chroot-dir=$CHROOTDIR \
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--overwrite \
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--addpkg=$MIN_PKGS \
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sudo cp -p files/sources.list $CHROOTDIR/etc/apt/sources.list
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sudo chroot $CHROOTDIR apt-get update
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exit 0
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fi
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# Build the image
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TMPDIR=tmp
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TMPDISK=`mktemp imgXXXXXXXX`
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SIZE=$[$ROOTSIZE+$SWAPSIZE+1]
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dd if=/dev/null of=$TMPDISK bs=1M seek=$SIZE
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sudo vmbuilder $HYPER ubuntu --suite $RELEASE \
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-o \
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--rootsize=$ROOTSIZE \
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--swapsize=$SWAPSIZE \
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--tmpfs - \
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--addpkg=openssh-server \
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--raw=$TMPDISK \
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dd if=/dev/null of=$TMPDISK bs=1M seek=$SIZE count=1
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if [ -n "$IMAGEONLY" ]; then
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# Build image from chroot
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sudo vmbuilder $HYPER ubuntu $ARGS \
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--existing-chroot=$CHR \
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--overwrite \
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--rootsize=$ROOTSIZE \
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--swapsize=$SWAPSIZE \
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--tmpfs - \
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--raw=$TMPDISK \
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else
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# Do the whole shebang in one pass
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ARGS="--variant=minbase"
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for i in $MIN_PKGS; do
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ARGS="$ARGS --addpkg=$i"
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done
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sudo vmbuilder $HYPER ubuntu $ARGS \
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--suite $RELEASE \
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--overwrite \
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--rootsize=$ROOTSIZE \
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--swapsize=$SWAPSIZE \
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--tmpfs - \
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--raw=$TMPDISK \
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fi
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if [ "$FORMAT" = "raw" ]; then
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# Get image
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