diff --git a/content/post/mysql-install.md b/content/post/mysql-install.md
index 6169015..a0f8795 100644
--- a/content/post/mysql-install.md
+++ b/content/post/mysql-install.md
@@ -74,7 +74,7 @@ categories: ["database"]
 - 创建普通用户 mortal，切换到 mortal 用户下
     ```bash
     useradd -m mortal
-    echo -e 'lijc hard nofile 5120\nlijc soft nofile 5120\n' \
+    echo -e 'mortal hard nofile 5120\nmortal soft nofile 5120\n' \
         > /etc/security/limits.d/mortal
     su - mortal
     ```
@@ -105,6 +105,7 @@ categories: ["database"]
     lower-case-table-names = 1
     ```
 
+### 初始化基础数据
 - 初始化实例的数据目录
     ```bash
     /mysql57/bin/mysqld \
@@ -112,16 +113,19 @@ categories: ["database"]
         --initialize-insecure
     ```
 
+### 启动 mysql
 - 启动实例
     ```bash
     /mysql57/bin/mysqld --defaults-file=/home/mortal/mysql-6033/my.cnf --daemonize
     ```
 
+### 设置 root 密码
 - 设置 mysql root 账户的密码
     ```bash
     /mysql57/bin/mysqladmin -S /home/mortal/mysql-6033/sock password
     ```
 
+### 客户端链接
 - 使用本机客户端登陆 mysql root 账户
     ```bash
     /mysql57/bin/mysql -S /home/mortal/mysql-6033/mysqld.sock -p