ci: enable `--debug`

diff --git a/tests/docker-build-vm.sh b/tests/docker-build-vm.sh
index 0b210dd..4b73dbc 100755 (executable)
--- a/tests/docker-build-vm.sh
+++ b/tests/docker-build-vm.sh
@@ -37,6 +37,7 @@ echo " ****************************************************************** "
 echo " * Running grml-debootstrap"
 
 grml-debootstrap \
+  --debug \
   --force \
   --vmfile \
   --vmsize 3G \