Disable usage of --copy-only and --grub at the same time

[grml2usb.git] / grml2usb

diff --git a/grml2usb b/grml2usb
index e324954..e608ac1 100755 (executable)
--- a/grml2usb
+++ b/grml2usb
@@ -1736,6 +1736,9 @@ def check_options(opts):
     if opts.grubmbr and not opts.grub:
         raise CriticalException("--grub-mbr requires --grub option.")
 
+    if opts.copyonly and opts.grub:
+        raise CriticalException("Cannot use --copy-only and --grub at the same time.")
+
 
 def check_programs():
     """check if all needed programs are installed"""