[Qemu-devel] [PATCH] Bail out if -append or -initrd is specified without -kernel

["Sebastian Herbszt" <herbszt@gmx.de>]

The append and initrd options are only allowed with the kernel option.
Make both depend on the kernel option. This should take care of
the confusion seen recently [1].

[1] http://permalink.gmane.org/gmane.comp.emulators.qemu/26684

- Sebastian

--- vl.c.orig Mon Jun 23 14:15:30 2008
+++ vl.c Mon Jun 23 14:32:16 2008
@@ -8386,6 +8386,16 @@
         nb_drives_opt == 0)
         help(1);
 
+    if (!linux_boot && *kernel_cmdline != '\0') {
+        fprintf(stderr, "-append only allowed with -kernel option\n");
+        exit(1);
+    }
+
+    if (!linux_boot && initrd_filename != NULL) {
+        fprintf(stderr, "-initrd only allowed with -kernel option\n");
+        exit(1);
+    }
+
     /* boot to floppy or the default cd if no hard disk defined yet */
     if (!boot_devices[0]) {
         boot_devices = "cad";