Check whether there actually are temporary packages

build/scripts/cleanup.sh

@@ -4,7 +4,7 @@ source /build/config
 set -x
 
 ## Remove temporary packages for minimal builds
-if [ $MODE == "minimal" ]; then
+if [ $MODE == "minimal" ] && [ -f /build/temporary ]; then
 cat /build/temporary
     apt_remove $(cat /build/temporary)
 fi
@@ -14,4 +14,4 @@ apt-get clean
 rm -rf /build
 rm -rf /tmp/* /var/tmp/*
 rm -rf /var/lib/apt/lists/*
-rm -f /etc/dpkg/dpkg.cfg.d/02apt-speedup
+rm -f /etc/dpkg/dpkg.cfg.d/02apt-speedup