optionally only create the chroot
diff --git a/make_image.sh b/make_image.sh
index 3bfa683..cfef136 100755
--- a/make_image.sh
+++ b/make_image.sh
@@ -1,27 +1,40 @@
#!/bin/bash
# make_image.sh - Create Ubuntu images in various formats
#
-# make_image.sh release format
-#
# Supported formats: qcow (kvm), vmdk (vmserver), vdi (vbox), vhd (vpc), raw
#
# Requires sudo to root
ROOTSIZE=${ROOTSIZE:-8192}
SWAPSIZE=${SWAPSIZE:-1024}
+MIN_PKGS=${MIN_PKGS:-"apt-utils gpgv openssh-server"}
usage() {
- echo "$0 - Create Ubuntu images"
+ echo "Usage: $0 - Create Ubuntu images"
echo ""
- echo "$0 [-r rootsize] [-s swapsize] release format"
+ echo "$0 [-m] [-r rootsize] [-s swapsize] release format"
+ echo "$0 -C [-m] release chrootdir"
+ echo "$0 -I [-r rootsize] [-s swapsize] chrootdir format"
+ echo ""
+ echo "-C - Create the initial chroot dir"
+ echo "-I - Create the final image from a chroot"
+ echo "-m - minimal installation"
+ echo "-r size - root fs size in MB"
+ echo "-s size - swap fs size in MB"
+ echo "release - Ubuntu release: jaunty - oneric"
+ echo "format - image format: qcow2, vmdk, vdi, vhd, xen, raw, fs"
exit 1
}
-while getopts hm:r:s: c; do
+while getopts CIhmr:s: c; do
case $c in
+ C) CHROOTONLY=1
+ ;;
+ I) IMAGEONLY=1
+ ;;
h) usage
;;
- m) MIRROR=$OPTARG
+ m) MINIMAL=1
;;
r) ROOTSIZE=$OPTARG
;;
@@ -31,8 +44,26 @@
done
shift `expr $OPTIND - 1`
+if [ ! "$#" -eq "2" -o -n $CHROOTONLY -a -n $IMAGEONLY ]; then
+ usage
+fi
+
+# Default args
RELEASE=$1
FORMAT=$2
+CHROOTDIR=""
+
+if [ -n "$CHROOTONLY" ]; then
+ RELEASE=$1
+ CHROOTDIR=$2
+ FORMAT="pass"
+fi
+
+if [ -n "$IMAGEONLY" ]; then
+ CHROOTDIR=$1
+ FORMAT=$2
+ RELEASE="pass"
+fi
case $FORMAT in
kvm|qcow2) FORMAT=qcow2
@@ -60,6 +91,7 @@
QFORMAT=raw
HYPER=kvm
;;
+ pass) ;;
*) echo "Unknown format: $FORMAT"
usage
esac
@@ -70,6 +102,7 @@
lucid) ;;
karmic) ;;
jaunty) ;;
+ pass) ;;
*) echo "Unknown release: $RELEASE"
usage
;;
@@ -80,17 +113,59 @@
sudo apt-get install ubuntu-vm-builder
fi
+if [ -n "$CHROOTONLY" ]; then
+ # Build a chroot directory
+ HYPER=kvm
+ if [ "$MINIMAL" = 1 ]; then
+ ARGS="--variant=minbase"
+ for i in $MIN_PKGS; do
+ ARGS="$ARGS --addpkg=$i"
+ done
+ fi
+ sudo vmbuilder $HYPER ubuntu $ARGS \
+ --suite $RELEASE \
+ --only-chroot \
+ --chroot-dir=$CHROOTDIR \
+ --overwrite \
+ --addpkg=$MIN_PKGS \
+
+ sudo cp -p files/sources.list $CHROOTDIR/etc/apt/sources.list
+ sudo chroot $CHROOTDIR apt-get update
+
+ exit 0
+fi
+
# Build the image
+TMPDIR=tmp
TMPDISK=`mktemp imgXXXXXXXX`
SIZE=$[$ROOTSIZE+$SWAPSIZE+1]
-dd if=/dev/null of=$TMPDISK bs=1M seek=$SIZE
-sudo vmbuilder $HYPER ubuntu --suite $RELEASE \
- -o \
- --rootsize=$ROOTSIZE \
- --swapsize=$SWAPSIZE \
- --tmpfs - \
- --addpkg=openssh-server \
- --raw=$TMPDISK \
+dd if=/dev/null of=$TMPDISK bs=1M seek=$SIZE count=1
+
+if [ -n "$IMAGEONLY" ]; then
+ # Build image from chroot
+ sudo vmbuilder $HYPER ubuntu $ARGS \
+ --existing-chroot=$CHR \
+ --overwrite \
+ --rootsize=$ROOTSIZE \
+ --swapsize=$SWAPSIZE \
+ --tmpfs - \
+ --raw=$TMPDISK \
+
+else
+ # Do the whole shebang in one pass
+ ARGS="--variant=minbase"
+ for i in $MIN_PKGS; do
+ ARGS="$ARGS --addpkg=$i"
+ done
+ sudo vmbuilder $HYPER ubuntu $ARGS \
+ --suite $RELEASE \
+ --overwrite \
+ --rootsize=$ROOTSIZE \
+ --swapsize=$SWAPSIZE \
+ --tmpfs - \
+ --raw=$TMPDISK \
+
+fi
if [ "$FORMAT" = "raw" ]; then
# Get image