1 files changed, 61 insertions, 0 deletions
diff --git a/scripts/make_dualboot_image.sh b/scripts/make_dualboot_image.sh
new file mode 100755
index 0000000..d3896f8
--- /dev/null
+++ b/scripts/make_dualboot_image.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# 
+# Creates a new raw image file:
+# - creating one vfat partition covering whole size
+# - formating partition with vfat
+# - provision GRUB boot-code (expecting 'grub' folder on vfat partition)
+# - copy custom files to vfat partition
+#
+sdir=`dirname $(readlink -f "${BASH_SOURCE[0]}")`
+rootdir=`dirname $sdir`
+
+usage() {
+    echo "Usage: $0 <image-file> <total-size in GiB> <mount-point> <provisioning-dir>"
+}
+
+if [ -z "${1}" -o -z "${2}" -o -z "${3}" -o -z "${4}" ]; then
+    usage
+    exit 2
+fi
+
+readonly grub_image="data/grub-image01.bin"
+
+IMG_FILE="${1}"
+IMG_FILE_SIZE="${2}"
+MNT_DIR="${3}"
+SRC_DIR="${4}"
+
+dd if=/dev/zero of=${IMG_FILE} bs=4M count=${IMG_FILE_SIZE}G conv=notrunc iflag=count_bytes,skip_bytes oflag=seek_bytes,dsync status=progress
+
+sfdisk ${IMG_FILE} << EOF
+4MiB,,c,*;
+EOF
+sync
+
+nbd_dev=$(${rootdir}/imagetool.sh --connect-raw ${IMG_FILE})
+if [ -z "${nbd_dev}" ]; then
+    echo "No mapped nbd to image, NBD_DEV '${nbd_dev}', abort"
+    exit 2
+fi
+
+p1dev="/dev/mapper/${nbd_dev}p1"
+mkfs.fat -n BOOT -F 32 -v ${p1dev}
+sync
+
+${sdir}/grubimg_to_blockdevice.sh "${grub_image}" "/dev/${nbd_dev}"
+
+mount ${p1dev} ${MNT_DIR}
+cp -a ${SRC_DIR}/* ${MNT_DIR}/
+sync
+umount ${MNT_DIR}
+sync
+
+# just make sure ..
+fsck.vfat -V -y ${p1dev}
+fsck.vfat -V -y ${p1dev}
+
+${rootdir}/imagetool.sh --disconnect ${nbd_dev}
+
+echo "New image ${IMG_FILE} partitioned, formatted and provisioned with GRUB boot-code and custom files."
+