安装mysql后，启动时候没有启动成功，查看了下日志报错如下:---------------------------------------------
1 可以：初始化mysql：mysql_install_db
2 目录权限问题chown -R mysql:mysql /var/lib/mysql
[root@localhost local]# less /var/log/mysqld.log
1、查看报错信息如下:
[ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
2、经过查阅资料得知。要敲如下命令解决:
mysql_install_db –usrer=mysql datadir=/var/lib/mysql
datadir是我的mysql存放文件目录
3、然后重启mysql还是不行:
MySQL Daemon failed to start.
正在启动 mysqld： [失败]
4、然后试了下单独的命令，启动完成
mysql_install_db
5、启动mysql服务
[root@mysql mysqld]# /etc/init.d/mysqld restart
停止 mysqld： [确定]
正在启动 mysqld： [确定]
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