mysql 启动错误

错误提示如下：

150815 20:24:40 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
150815 20:26:07 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
/usr/libexec/mysqld: Table 'mysql.plugin' doesn't exist
150815 20:26:07 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.

解决方法：

mysql_install_db --user=mysql  #进行数据库的初始化

以下是此命令的用法：

 mysql_install_db说明
 当MySQL的系统库（mysql系统库）发生故障或需要新加一个mysql实例时，需要初始化mysql数据库。
 需要使用的命令：/usr/local/mysql/bin/mysql_install_db
 #/usr/local/mysql/bin/mysql_install_db --help 可以查看帮助信息如下
 Usage: /usr/local/mysql/bin/mysql_install_db [OPTIONS]
   --basedir=path       The path to the MySQL installation directory.
   --cross-bootstrap    For internal use.  Used when building the MySQL system
                        tables on a different host than the target.
   --datadir=path       The path to the MySQL data directory.
   --force              Causes mysql_install_db to run even if DNS does not
                        work.  In that case, grant table entries that normally
                        use hostnames will use IP addresses.
   --ldata=path         The path to the MySQL data directory.
   --rpm                For internal use.  This option is used by RPM files
                        during the MySQL installation process.
   --skip-name-resolve  Use IP addresses rather than hostnames when creating
                        grant table entries.  This option can be useful if
                        your DNS does not work.
   --srcdir=path        For internal use.  The directory under which
                        mysql_install_db looks for support files such as the
                        error message file and the file for popoulating the
                        help tables.
   --user=user_name     The login username to use for running mysqld.  Files
                        and directories created by mysqld will be owned by this
                        user.  You must be root to use this option.  By default
                        mysqld runs using your current login name and files and
                        directories that it creates will be owned by you.