Mysql報錯Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist

安裝mysql后，啟動時候沒有啟動成功，查看了下日志報錯如下:---------------------------------------------

1   可以：初始化mysql：mysql_install_db

2   目錄權限問題chown -R mysql:mysql  /var/lib/mysql

[root@localhost local]# less /var/log/mysqld.log
1、查看報錯信息如下:
[ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist

2、經過查閱資料得知。要敲如下命令解決:
mysql_install_db –usrer=mysql datadir=/var/lib/mysql
datadir是我的mysql存放文件目錄

3、然后重啟mysql還是不行:
MySQL Daemon failed to start.
正在啟動 mysqld：                                          [失敗]

4、然后試了下單獨的命令，啟動完成
mysql_install_db

5、啟動mysql服務
[root@mysql mysqld]# /etc/init.d/mysqld restart
停止 mysqld：                                              [確定]
正在啟動 mysqld：                                         [確定]