Check for grub-mkimage when creating virtual machine images (issue #61)

diff --git a/grml-debootstrap b/grml-debootstrap
index 739fd86..add5973 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -378,7 +378,7 @@ fi
 
 # make sure we have what we need {{{
 if [ -n "$VIRTUAL" ] ; then
-  check4progs kpartx mksh parted qemu-img || bailout 1
+  check4progs grub-mkimage kpartx mksh parted qemu-img || bailout 1
 fi
 # }}}