You have installed MySQL Server for the first time on your system. However, the data
directory along with the tables in the mysql system database are missing. Which step do you perform to create the contents of the data directory?
A. Run the create_system_tables.sql file
B. Run the mysql_unpack.sql file
C. Invoke mysqld with the --initialize option.
D. Invoke mysql with the --initialize option.
Answer: C

#您首次在系统上安装了MySQL服务器。然而，数据mysql系统数据库中缺少目录和表。您执行哪一步来创建数据目录的内容？

需要执行命令--initialize初始化:

 /opt/mysql/bin/mysqld --initialize --user=mysql --basedir=/opt/mysql --datadir=/opt/mysql/data