diff --git a/export-image/04-finalise/01-run.sh b/export-image/04-finalise/01-run.sh
index c64c92b..2de42ca 100755
--- a/export-image/04-finalise/01-run.sh
+++ b/export-image/04-finalise/01-run.sh
@@ -18,6 +18,29 @@ if [ -e ${ROOTFS_DIR}/etc/ld.so.preload.disabled ]; then
         mv ${ROOTFS_DIR}/etc/ld.so.preload.disabled ${ROOTFS_DIR}/etc/ld.so.preload
 fi
 
+rm -f ${ROOTFS_DIR}/etc/apt/sources.list~
+rm -f ${ROOTFS_DIR}/etc/apt/trusted.gpg~
+
+rm -f ${ROOTFS_DIR}/etc/passwd-
+rm -f ${ROOTFS_DIR}/etc/group-
+rm -f ${ROOTFS_DIR}/etc/shadow-
+rm -f ${ROOTFS_DIR}/etc/gshadow-
+
+rm -f ${ROOTFS_DIR}/var/cache/debconf/*-old
+rm -f ${ROOTFS_DIR}/var/lib/dpkg/*-old
+
+rm -f ${ROOTFS_DIR}/usr/share/icons/*/icon-theme.cache
+
+rm -f ${ROOTFS_DIR}/var/lib/dbus/machine-id
+
+true > ${ROOTFS_DIR}/etc/machine-id
+
+for _FILE in $(find ${ROOTFS_DIR}/var/log/ -type f); do
+	true > ${_FILE}
+done
+
+rm -f "${ROOTFS_DIR}/root/.vnc/private.key"
+
 update_issue $(basename ${EXPORT_DIR})
 install -m 644 ${ROOTFS_DIR}/etc/rpi-issue ${ROOTFS_DIR}/boot/issue.txt
 install files/LICENSE.oracle ${ROOTFS_DIR}/boot/
diff --git a/export-image/prerun.sh b/export-image/prerun.sh
index ec440c9..661fc4e 100755
--- a/export-image/prerun.sh
+++ b/export-image/prerun.sh
@@ -8,19 +8,19 @@ rm -f ${IMG_FILE}
 rm -rf ${ROOTFS_DIR}
 mkdir -p ${ROOTFS_DIR}
 
-BOOT_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR}/boot -B M | cut -f 1 | tr -d M)
-TOTAL_SIZE=$(du -sh ${EXPORT_ROOTFS_DIR} -B M | cut -f 1 | tr -d M)
+BOOT_SIZE=$(du -s ${EXPORT_ROOTFS_DIR}/boot --block-size=1 | cut -f 1)
+TOTAL_SIZE=$(du -s ${EXPORT_ROOTFS_DIR} --exclude var/cache/apt/archives --block-size=1 | cut -f 1)
 
-IMG_SIZE=$(expr $BOOT_SIZE \* 2 \+ $TOTAL_SIZE \+ 512)M
+IMG_SIZE=$((BOOT_SIZE + TOTAL_SIZE + (400 * 1024 * 1024)))
 
 fallocate -l ${IMG_SIZE} ${IMG_FILE}
-fdisk ${IMG_FILE} > /dev/null 2>&1 <<EOF
+fdisk -H 255 -S 63 ${IMG_FILE} <<EOF
 o
 n
 
 
 8192
-+`expr $BOOT_SIZE \* 3`M
++$((BOOT_SIZE * 2 /512))
 p
 t
 c
@@ -57,4 +57,4 @@ mount -v $ROOT_DEV ${ROOTFS_DIR} -t ext4
 mkdir -p ${ROOTFS_DIR}/boot
 mount -v $BOOT_DEV ${ROOTFS_DIR}/boot -t vfat
 
-rsync -aHAXx ${EXPORT_ROOTFS_DIR}/ ${ROOTFS_DIR}/
+rsync -aHAXx --exclude var/cache/apt/archives ${EXPORT_ROOTFS_DIR}/ ${ROOTFS_DIR}/
diff --git a/scripts/common b/scripts/common
index a67140f..bd18a07 100644
--- a/scripts/common
+++ b/scripts/common
@@ -28,7 +28,7 @@ copy_previous(){
 		false
 	fi
 	mkdir -p "${ROOTFS_DIR}"
-	rsync -aHAXx "${PREV_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
+	rsync -aHAXx --exclude var/cache/apt/archives "${PREV_ROOTFS_DIR}/" "${ROOTFS_DIR}/"
 }
 export -f copy_previous
 
diff --git a/stage2/03-cleanup/00-run.sh b/stage2/03-cleanup/00-run.sh
deleted file mode 100755
index 071a164..0000000
--- a/stage2/03-cleanup/00-run.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash -e
-
-on_chroot << EOF
-apt-get clean
-EOF
diff --git a/stage4/00-install-packages/01-run.sh b/stage4/00-install-packages/01-run.sh
deleted file mode 100755
index 8f215d1..0000000
--- a/stage4/00-install-packages/01-run.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash -e
-
-rm -f "${ROOTFS_DIR}/root/.vnc/private.key"
diff --git a/stage4/03-cleanup/00-run.sh b/stage4/03-cleanup/00-run.sh
deleted file mode 100755
index 071a164..0000000
--- a/stage4/03-cleanup/00-run.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash -e
-
-on_chroot << EOF
-apt-get clean
-EOF