doc: format 2 now is the default image format

Signed-off-by: Chengwei Yang <yangchengwei@qiyi.com>

diff --git a/doc/man/8/rbd.rst b/doc/man/8/rbd.rst
index 87ec0f3c71da9af3cd443482a1c84402cff80240..f824f7f46900334b77dc2384a1c3e9c7bdf66caa 100644 (file)
--- a/doc/man/8/rbd.rst
+++ b/doc/man/8/rbd.rst
@@ -54,7 +54,7 @@ Parameters
 
 .. option:: --image-format format-id
 
-   Specifies which object layout to use. The default is 1.
+   Specifies which object layout to use. The default is 2.
 
    * format 1 - (deprecated) Use the original format for a new rbd image. This
      format is understood by all versions of librbd and the kernel rbd module,