#!/bin/sh set -eu export LC_ALL=C.UTF-8 ret=0 {{ CMD }} --mode=root --variant=apt --customize-hook='chroot "$1" sh -c "exit 1"' {{ DIST }} /tmp/debian-chroot {{ MIRROR }} || ret=$? rm -r /tmp/debian-chroot if [ "$ret" = 0 ]; then echo expected failure but got exit $ret >&2 exit 1 fi