mysql在linux下的安装方式有三种,rpm安装,二进制包以及源码包安装。
rpm安装方式优点是安装简单,但是服务器安装与客户端安装都需要下载独立的软件包,且安装路径无法定制化;
二级制和源码安装都非常灵活,可以实现许多定制化的操作,两者安装方式也差不多。
这里主要演示源码安装方法:
1.预安装前的设置
shell> groupadd mysql
shell> useradd -r -g mysql mysql
2.编译安装源码包
shell> tar zxvf mysql-VERSION.tar.gz
shell> cd mysql-VERSION
shell> cmake .
shell> make
shell> make install (源码安装默认路径为/usr/local/mysql,如果希望安装在其他目录需加参数DESTDIR)
说明:这里的cmake命令相当于之前的configure命令,该软件可以在此下载http://www.cmake.org
3.安装后的配置
shell> cd /usr/local/mysql
shell> chown -R mysql .
shell> chgrp -R mysql .
shell> scripts/mysql_install_db --user=mysql (这步是创建系统数据库以及系统表)
shell> chown -R root .
shell> chown -R mysql data
4.配置mysql服务器参数
shell> cp support-files/my-medium.cnf /etc/my.cnf
shell> bin/mysqld_safe --user=mysql & (启动mysql)
5.配置mysql开机启动
shell> cp support-files/mysql.server /etc/init.d/mysql.server
shell> chkconfig mysql.server on
6.启停mysql服务
shell> bin/mysqld_safe --user=mysql & (启动mysql)
shell>mysqladmin shutdown -uroot -p (关闭mysql)
7.删除mysql匿名账号(生产环境中必须执行该操作)
shell>bin/mysqladmin -u root password 'new-password' --设置root账号的新密码
shell>bin/mysql_secure_installation --删除mysql匿名账号
8.测试安装效果
shell>mysqlshow -uroot -p
Enter password:
+--------------------+
| Databases |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
shell>mysql -uroot -p -e "select user,host,password from mysql.user"
Enter password:
+------+-----------+-------------------------------------------+
| user | host | password |
+------+-----------+-------------------------------------------+
| root | localhost | *2447D497B9A6A15F2776055CB2D1E9F86758182F |
| root | 127.0.0.1 | |
| root | ::1 | |
+------+-----------+-------------------------------------------+
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