1、下载安装包 http://dev.mysql.com/downloads/
2.检查库文件是否存在，如有删除。 [root@QuDaoMysql mysql]# rpm -qa | grep mysql mysql-5.1.61-4.el6.x86_64 qt-mysql-4.6.2-24.el6.x86_64 mysql-server-5.1.61-4.el6.x86_64 mysql-libs-5.1.61-4.el6.x86_64 mysql-devel-5.1.61-4.el6.x86_64 [root@QuDaoMysql mysql]# [root@QuDaoMysql mysql]# rpm -e mysql-5.1.61-4.el6.x86_64 --nodeps [root@QuDaoMysql mysql]# rpm -e qt-mysql-4.6.2-24.el6.x86_64 --nodeps [root@QuDaoMysql mysql]# rpm -e mysql-server-5.1.61-4.el6.x86_64 --nodeps [root@QuDaoMysql mysql]# rpm -e mysql-libs-5.1.61-4.el6.x86_64 --nodeps [root@QuDaoMysql mysql]# rpm -e mysql-devel-5.1.61-4.el6.x86_64 --nodeps [root@QuDaoMysql mysql]#
3.检查mysql组和用户是否存在，如无创建。 [root@QuDaoMysql mysql]# cat /etc/group | grep mysql mysql❌27: [root@QuDaoMysql mysql]# cat /etc/passwd | grep mysql mysql❌27:27:MySQL Server:/var/lib/mysql:/bin/bash
注意安装顺序 rpm -ivh mysql-community-common-5.7.16-1.el6.x86_64.rpm rpm -ivh mysql-community-libs-5.7.16-1.el6.x86_64.rpm rpm -ivh mysql-community-client-5.7.16-1.el6.x86_64.rpm rpm -ivh mysql-community-server-5.7.16-1.el6.x86_64.rpm
[root@QuDaoMysql _rpminstall]# rpm -ivh mysql-community-common-5.7.16-1.el6.x86_64.rpm warning: mysql-community-common-5.7.16-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ########################################### [100%] 1:mysql-community-common ########################################### [100%] [root@QuDaoMysql _rpminstall]# rpm -ivh mysql-community-libs-5.7.16-1.el6.x86_64.rpm warning: mysql-community-libs-5.7.16-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ########################################### [100%] 1:mysql-community-libs ########################################### [100%] [root@QuDaoMysql _rpminstall]# rpm -ivh mysql-community-client-5.7.16-1.el6.x86_64.rpm warning: mysql-community-client-5.7.16-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ########################################### [100%] 1:mysql-community-client ########################################### [100%] [root@QuDaoMysql _rpminstall]# rpm -ivh mysql-community-server-5.7.16-1.el6.x86_64.rpm warning: mysql-community-server-5.7.16-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing… ########################################### [100%] 1:mysql-community-server warning: /etc/my.cnf created as /etc/my.cnf.rpmnew ########################################### [100%] [root@QuDaoMysql _rpminstall]#
安装过程中会生成my.cnf,手动把原来的覆盖
[root@QuDaoMysql _rpminstall]# cp /etc/my.cnf.rpmnew /etc/my.cnf cp: overwrite `/etc/my.cnf’? y [root@QuDaoMysql _rpminstall]#
4、启动mysql
[root@QuDaoMysql _rpminstall]# /etc/rc.d/init.d/mysqld start Initializing MySQL database: [ OK ] Installing validate password plugin: [ OK ] Starting mysqld: [ OK ] [root@QuDaoMysql _rpminstall]#
5、mysql5.7 开始有默认的密码 [root@QuDaoMysql _rpminstall]# cat /var/log/mysqld.log|grep ‘temporary password’ 2016-10-20T03:07:36.130787Z 1 [Note] A temporary password is generated for root@localhost: EGlLlD,dg2qe [root@QuDaoMysql _rpminstall]#
初始密码为 EGlLlD,dg2qe
6、登录 输入密码,重置密码 [root@QuDaoMysql _rpminstall]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.16
Copyright © 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.
mysql> mysql> SET PASSWORD = PASSWORD(‘xxxxxx’); ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> mysql> SET PASSWORD = PASSWORD(‘xxxxxxx’); Query OK, 0 rows affected, 1 warning (0.00 sec) mysql>
7、授权远程连接 mysql> GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘xxxxx’ WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.00 sec)
mysql> mysql>
说明：如果远程连接不上，关闭防火墙。
8.配置mysql自动启动
9.修改默认目录 关闭数据库 [root@QuDaoMysql prlife]# service mysqld stop Stopping mysqld: [ OK ] [root@QuDaoMysql prlife]# cd /var/lib/
拷贝必须使用-a,否则权限会乱掉 [root@QuDaoMysql lib]# cp -a mysql /prlife/
修改第一个文件 修改/etc/my.cnf，修改前需要进行备份
#datadir=/var/lib/mysql #socket=/var/lib/mysql/mysql.sock datadir=/prlife/mysql/data socket=/prlife/mysql/data/mysql.sock
再增加以下几个参数，否则会报错 [mysql.server] user=mysql basedir=/prlife/mysql/data/mysql [client] socket=/prlife/mysql/data/mysql.sock
修改第二个文件：mysqld
修改之前进行备份 [root@QuDaoMysql mysql]# cp /etc/init.d/mysqld /etc/init.d/mysqld_bak [root@QuDaoMysql mysql]# vi /etc/init.d/mysqld 替换所有 /var/lib/mysql为/prlife/mysql/data
修改第三个文件 修改之前先备份 cp /usr/bin/mysqld_safe /usr/bin/mysqld_safebak vi /usr/bin/mysqld_safe 替换所有 /var/lib/mysql为 /prlife/mysql/data
(4)创建一个mysql.sock的链接
[root@QuDaoMysql lib]# mkdir -p /var/lib/mysql/ [root@QuDaoMysql lib]# chown -R mysql.mysql /var/lib/mysql [root@QuDaoMysql lib]# ln -s /prlife/mysql/data/mysql.sock /var/lib/mysql/mysql.sock
重启数据库
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