--- a/pvl/hosts/dhcp.py	Thu Feb 26 15:42:01 2015 +0200
+++ b/pvl/hosts/dhcp.py	Thu Feb 26 15:53:57 2015 +0200
@@ -17,14 +17,14 @@
       
     if not host.boot:
         next_server = filename = None
+    elif host.boot.startswith('/'):
+        next_server = None
+        filename = host.boot[1:]
+    elif host.boot.endswith(':'):
+        next_server = host.boot[:-1]
+        filename = None
     elif ':' in host.boot :
         next_server, filename = host.boot.split(':', 1)
-    elif host.boot.startswith('/') :
-        next_server = None
-        filename = host.boot
-    elif host.boot.endswith(':') :
-        next_server = host.boot
-        filename = None
     else :
         raise HostError(host, "invalid boot={host.boot}".format(host=host))