[HVM] Fix reboot failure when configured 'cdrom', i.e. bug 832.

Signed-off-by : Xinmei Huang <xinmei.huang@intel.com>

diff --git a/tools/python/xen/xend/server/blkif.py b/tools/python/xen/xend/server/blkif.py
index 16e2c5052d5cc8b383b3bfb3e17ced4fee4e280a..bba11ebe1f29f949e6f58bb66ca5df737d139570 100644 (file)
--- a/tools/python/xen/xend/server/blkif.py
+++ b/tools/python/xen/xend/server/blkif.py
@@ -124,6 +124,8 @@ class BlkifController(DevController):
             config['dev'] = dev
         if typ and params:
             config['uname'] = typ +':' + params
+        else:
+            config['uname'] = None
         if mode:
             config['mode'] = mode
         if uuid: