diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..b1bfb0f07c6a4a6a1ee3b5e9de2a79256a5e39c0
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+# Ceph
+
+## 已知问题
+
+1. 编译需要gcc-c++8
+2. 使用系统官方源里的leveldb-devel会链接失败。下载leveldb（版本与系统的leveldb相同）编译，替换系统的 `libleveldb.so.*`
+3. 官方源里缺失的python包:`python3-cherrypy`，`python3-kubernetes`，`python3-remoto`，`python3-routes`。
diff --git a/ceph.spec b/ceph.spec
index f8cbcd230e3368202afb6eac84ce1c40b3cf7182..9d619dea22b9eb5259b828fb87e8b9f8ead46bbe 100644
--- a/ceph.spec
+++ b/ceph.spec
@@ -293,6 +293,7 @@ BuildRequires:  librdmacm-devel
 BuildRequires:  openldap-devel
 #BuildRequires:  krb5-devel
 BuildRequires:  openssl-devel
+BuildRequires:  CUnit-devel
 BuildRequires:	python%{python3_pkgversion}-devel
 BuildRequires:	python%{python3_pkgversion}-setuptools
 %if 0%{?rhel} == 7