kernel: we should go back to the ro default not change to rw on mount fail

Otherwise if you hit enter then type in the fs name you get a r/w mount
unexpectedly

diff --git a/Kernel/start.c b/Kernel/start.c
index 56d0c49..e10cdfa 100644 (file)
--- a/Kernel/start.c
+++ b/Kernel/start.c
@@ -393,7 +393,7 @@ void fuzix_main(void)
             /* reset potentially altered state before prompting the user for command line again */
             progptr = old_progptr;
             argptr = old_argptr;
-            ro = 0;
+            ro = MS_RRDONLY;
         }
 
        root = i_open(root_dev, ROOTINODE);