一、下載地址

本文安裝的版本：

或者使用wget下載：

[root@localhost opt]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.32-el7-x86_64.tar.gz

[root@localhost opt]# tar -xvf mysql-5.7.32-el7-x86_64.tar.gz

二、檢查是否已經(jīng)安裝過(guò)mysql

[root@localhost opt]# rpm -qa | grep mysql

# 若出現(xiàn)：mysql-libs*

[root@localhost /]# rpm -e --nodeps mysql-libs* #進(jìn)行卸載

# 再次執(zhí)行查詢命令，查看是否刪除

[root@localhost /]# rpm -qa | grep mysql

# 若沒(méi)有mysql字樣出現(xiàn)，說(shuō)明mysql已卸載

# 查詢所有Mysql對(duì)應(yīng)的文件夾

[root@localhost /]# whereis mysql

mysql: /usr/bin/mysql /usr/include/mysql

[root@localhost lib]# find / -name mysql

/data/mysql

/data/mysql/mysql

# 刪除相關(guān)目錄或文件

[root@localhost /]# rm -rf /usr/bin/mysql /usr/include/mysql /data/mysql /data/mysql/mysql

三、安裝

[root@localhost opt]# mv mysql-5.7.32-el7-x86_64 /usr/local/mysql

[root@localhost opt]# mkdir /usr/local/mysql/data

[root@localhost opt]# groupadd mysql

[root@localhost opt]# useradd -r -g mysql mysql

[root@localhost opt]# chown mysql:mysql -R /usr/local/mysql

[root@localhost mysql]# vim /etc/my.cnf.d/mysql-clients.cnf

[root@localhost opt]# cd /usr/local/mysql/bin/

[root@localhost bin]# ./mysqld --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql --initialize

[root@localhost bin]# ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

[root@localhost bin]# service mysql start

[root@localhost bin]# mkdir /var/log/mariadb

[root@localhost bin]# touch /var/log/mariadb/mariadb.log

[root@localhost bin]# chown mysql:mysql -R /var/log/mariadb

[root@localhost bin]# service mysql start

四、RPM安裝：

下載下圖中的四個(gè)包：

[root@localhost ~]# cd /opt

[root@localhost opt]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-community-server-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-community-common-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-community-libs-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-community-client-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# rpm -qa|grep mariadb

mariadb-libs-5.5.52-1.el7.x86_64

[root@localhost opt]# rpm -e mariadb-libs-5.5.52-1.el7.x86_64

[root@localhost opt]# rpm -e --nodeps mariadb-libs-5.5.52-1.el7.x86_64

[root@localhost opt]# rpm -ivh mysql-community-common-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# rpm -ivh mysql-community-libs-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# rpm -ivh mysql-community-client-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# rpm -ivh mysql-community-server-5.7.32-1.el7.x86_64.rpm

[root@localhost opt]# systemctl start mysqld

四、修改MySQL密碼及開(kāi)發(fā)遠(yuǎn)程連接

修改MySQL初始密碼：

[root@localhost bin]# mysql -uroot -p

Enter password:

mysql> alter user 'root'@'localhost' identified by '新密碼';

退出，使用新密碼重新登陸

開(kāi)放遠(yuǎn)程連接

mysql> grant all privileges on *.* to 'root'@'%' identified by '密碼';

總結(jié)

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