Update the instruction of INSTALL for 0.9.0 release (#206)
diff --git a/releases/0.9.0-incubating/INSTALL.md b/releases/0.9.0-incubating/INSTALL.md
index 540d48e..1c5ea63 100644
--- a/releases/0.9.0-incubating/INSTALL.md
+++ b/releases/0.9.0-incubating/INSTALL.md
@@ -160,9 +160,17 @@
$ ansible-playbook -i environments/local postdeploy.yml
```
-Normally, the ansible scripts will be executed without error. One known issue we have can be found at [this link](https://github.com/apache/incubator-openwhisk/issues/3804), you
-can try to run the script "ansible-playbook -i environments/local routemgmt.yml" to see if it can succeed. If you fail to
-deploy OpenWhisk, please [log an issue](https://github.com/apache/incubator-openwhisk/issues) for OpenWhisk community.
+There are several know issues when you run the above ansible scripts:
+
+One known issue we have can be found at [this link](https://github.com/apache/incubator-openwhisk/issues/3804). You
+can run the script "ansible-playbook -i environments/local routemgmt.yml" to see if it can succeed.
+
+Another issue can be found at [this link](https://github.com/apache/incubator-openwhisk/issues/3815). You can find the solution
+in the description of this issue.
+
+Since this release does not ship the code of test cases, any error regarding test cases can be ignored.
+
+The ansible scripts will be executed without error after you go through the above issues. If you still fail to deploy OpenWhisk, please [log an issue](https://github.com/apache/incubator-openwhisk/issues) for OpenWhisk community.
## Run OpenWhisk
