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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 [-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 "$0 [-r rootsize] [-s swapsize] release format"
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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: $RELEASE"
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usage
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;;
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@ -80,18 +113,60 @@ if [ -z `which vmbuilder` ]; then
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sudo apt-get install ubuntu-vm-builder
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fi
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if [ -n "$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 $RELEASE \
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-o \
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dd if=/dev/null of=$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=$SWAPSIZE \
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--tmpfs - \
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--addpkg=openssh-server \
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--raw=$TMPDISK \
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fi
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if [ "$FORMAT" = "raw" ]; then
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# Get image
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mv $TMPDISK $RELEASE.$FORMAT
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