added chdir/chroot commands to init for mount switching/pivoting
diff --git a/init/builtins.c b/init/builtins.c
index 289f0cd..43508ef 100644
--- a/init/builtins.c
+++ b/init/builtins.c
@@ -131,6 +131,18 @@
     }
 }
 
+int do_chdir(int nargs, char **args)
+{
+    chdir(args[1]);
+    return 0;
+}
+
+int do_chroot(int nargs, char **args)
+{
+    chroot(args[1]);
+    return 0;
+}
+
 int do_class_start(int nargs, char **args)
 {
         /* Starting a class does not start services