TEST-04-FULL-SYSTEMD: report failure on rootfs creation

test/TEST-04-FULL-SYSTEMD/create-root.sh

@@ -1,5 +1,6 @@
 #!/bin/sh
 # don't let udev and this script step on eachother's toes
+set -x
 for x in 64-lvm.rules 70-mdadm.rules 99-mount-rules; do
     > "/etc/udev/rules.d/$x"
 done

test/TEST-04-FULL-SYSTEMD/test.sh

@@ -256,8 +256,10 @@ EOF
         -m 512M  -smp 2 -nographic -net none \
         -append "root=/dev/fakeroot rw rootfstype=btrfs quiet console=ttyS0,115200n81 selinux=0" \
         -initrd $TESTDIR/initramfs.makeroot  || return 1
-    grep -F -m 1 -q dracut-root-block-created $TESTDIR/root.btrfs || return 1
-
+    if ! grep -F -m 1 -q dracut-root-block-created $TESTDIR/root.btrfs; then
+        echo "Could not create root filesystem"
+        return 1
+    fi
 
     (
         export initdir=$TESTDIR/overlay