export-image: get apt lists from public repo

export-image/01-set-sources/01-run.sh

@@ -1,5 +1,7 @@
 #!/bin/bash -e
 
+rm -f "${ROOTFS_DIR}/etc/apt/apt.conf.d/51cache"
+find "${ROOTFS_DIR}/var/lib/apt/lists/" -type f -delete
 on_chroot << EOF
 apt-get update
 apt-get -y dist-upgrade

export-image/04-finalise/01-run.sh

@@ -16,7 +16,6 @@ if [ -d "${ROOTFS_DIR}/home/${FIRST_USER_NAME}/.config" ]; then
 	chmod 700 "${ROOTFS_DIR}/home/${FIRST_USER_NAME}/.config"
 fi
 
-rm -f "${ROOTFS_DIR}/etc/apt/apt.conf.d/51cache"
 rm -f "${ROOTFS_DIR}/usr/bin/qemu-arm-static"
 
 if [ "${USE_QEMU}" != "1" ]; then