检查是否已经安装mysql
rpm -qa| grep mysqlhtml
[root@test /]# rpm -qa | grep mysql
mysql-libs-5.1.71-1.el6.x86_64node
卸载mysql
rpm -e mysql-libs –nodepsmysql
在电脑中查找有关mysql的文件尽量删掉，若是有的话
好比/etc/my.cc或者/etc/mysqllinux
下载及解压安装包
官方下载地址为：http://dev.mysql.com/downloads/mysql/
Linux - Generic
(mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz)sql
个人安装目录是: /home/mysql数据库
#安装libaio库 yum search libaio yum install libaio #移动mysql更目录到须要安装的地方 cd /home/setup/clear tar -zxvf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz mv /home/setup/mysql-5.7.17-linux-glibc2.5-x86_64 /home/mysql #复制配置文件 cp /home/mysql/support-files/my-default.cnf /etc/my.cnf #修改配置文件 修改内容以下 vi /etc/my.cnf basedir = /home/mysql/ datadir = /home/mysql/data port = 3306 socket = /home/mysql/tmp/mysql.sock #建立data,tmp目录 cd /home/mysql mkdir data mkdir tmp #建立不可登录用户及组 groupadd mysql useradd -r -g mysql -s /bin/false mysql #增长目录权限 cd /home/mysql chown -R mysql . chgrp -R mysql . #复制mysqld cp /home/mysql/support-files/mysql.server /etc/init.d/mysqld chmod 755 /etc/init.d/mysqld #初始化数据库 cd /home/mysql/bin ./mysqld --user=mysql --basedir=/home/mysql --datadir=/home/mysql/data --initialize [Note] A temporary password is generated for root@localhost: b,prkho.N8Sm #须要注意关于timestamp的设置--explicit_defaults_for_timestamp #启动 service mysqld start #若是报以下错误：则须要转到NEXT1 [root@test bin]# service mysqld start Starting MySQL.Logging to '/home/mysql/data/test.myhome.m.hzwh.com.err'. 2017-05-02T00:20:15.262870Z mysqld_safe The file /usr/local/mysql/bin/mysqld does not exist or is not executable. Please cd to the mysql installation directory and restart this script from there as follows: ./bin/mysqld_safe& See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information ERROR! The server quit without updating PID file (/home/mysql/data/test.myhome.m.hzwh.com.pid). #NEXT1 #建立/usr/local/mysql/bin目录 cd /usr/local mkdir mysql cd mysql mkdir bin #创建连接 ln -s /home/mysql/bin/mysqld /usr/local/mysql/bin/mysqld #启动mysqld service mysqld start #客户端链接 cd /home/mysql/bin ./mysql -u root -p Enter password: 这个也就是刚才的那个密码：b,prkho.N8Sm 若是报以下错误则转到NEXT2 [root@test bin]# ./mysql -u root -p Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) #NEXT2 ln -s /home/mysql/tmp/mysql.sock /tmp/mysql.sock ./mysql -u root -p #登录成功 #修改root密码为123456 mysql>set password=password('123456'); #建立用户 mysql>CREATE USER 'fswh'@'localhost' IDENTIFIED BY 'Fswh888$'; #建立数据库test_db mysql> CREATE DATABASE IF NOT EXISTS `fswh_vipsys` DEFAULT CHARACTER SET `utf8` COLLATE `utf8_unicode_ci`; #用户受权数据库 #只允许本地访问 mysql> GRANT ALL PRIVILEGES ON fswh_vipsys.* TO fswh@'localhost'; mysql> flush privileges; #开启远程访问,在Linux下为了安全，默认是不容许mysql本机之外的机器访问mysql数据库服务，所以须要从新受权用户。 mysql> GRANT ALL PRIVILEGES ON fswh_vipsys.* TO fswh@'%' IDENTIFIED BY 'Fswh888$'; mysql> flush privileges; #mysql 修改用户名密码 mysql> use mysql; mysql> UPDATE user SET password=password("test123") WHERE user='root'; mysql> flush privileges; mysql> exit; #设置开机启动 #检查自启动项列表中没有mysqld这个，若是没有就添加mysqld chkconfig --list mysqld chkconfig --add mysqld #设置MySQL在345等级自动启动 chkconfig --level 345 mysqld on #或用这个命令设置开机启动 chkconfig mysqld on #mysql服务的启动/重启/中止 service mysqld start service mysqld restart service mysqld stop