diff --git a/fuxi/common/blockdevice.py b/fuxi/common/blockdevice.py
index 236619e..855b8fb 100644
--- a/fuxi/common/blockdevice.py
+++ b/fuxi/common/blockdevice.py
@@ -31,5 +31,5 @@ class BlockerDeviceManager(object):
                 .read().rstrip('\n')
             return (float(nr_sectors) * float(sect_size)) / units.Gi
         except IOError as e:
-            LOG.error("Failed to read device size. %s", e)
-            raise exceptions.FuxiException(e.message)
+            LOG.error("Failed to read device size. %s", str(e))
+            raise exceptions.FuxiException(str(e))
diff --git a/fuxi/common/mount.py b/fuxi/common/mount.py
index a0e3e5e..7ff7acf 100644
--- a/fuxi/common/mount.py
+++ b/fuxi/common/mount.py
@@ -149,4 +149,4 @@ def do_mount(devpath, mountpoint, fstype):
             mounter.mount(devpath, mountpoint, fstype)
         except exceptions.FuxiException as e:
             with excutils.save_and_reraise_exception():
-                LOG.error(e.message)
+                LOG.error(str(e))