From 5fcef91278fe9acc5ff2c696dc767faad2a62630 Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Tue, 25 Aug 2015 09:42:37 -0700
Subject: [PATCH] Ignore old root-topology if present -- fix for upgrading on
 Linux and possibly elsewhere.

---
 node/Node.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/node/Node.cpp b/node/Node.cpp
index d40ceab9c..534c085d0 100644
--- a/node/Node.cpp
+++ b/node/Node.cpp
@@ -136,7 +136,7 @@ Node::Node(
 			if (!Topology::authenticateRootTopology(rt))
 				rt.clear();
 		}
-		if (!rt.size())
+		if ((!rt.size())||(!rt.contains("rootservers")))
 			rt.fromString(ZT_DEFAULTS.defaultRootTopology);
 	}
 	RR->topology->setRootServers(Dictionary(rt.get("rootservers","")));