Centos7 安装Mysql5.7

1. 下载mysql5.7.31 (这里选择的是通用Linux版本)

https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz
Centos7 安装Mysql5.7

2. 卸载自带的mariadb和mysql

检查是否安装了mariadb和mysql,有时候默认安装了

rpm -qa | grep mariadb
rpm -qa | grep mysql

如果没有,就可以安装mysql,如果有,需要先卸载(remove后为上面命令查询到的内容,全文件名,我这里没有,没法展示)

yum remove mariadb-*

3. 将下载好的文件传到linux服务器

Centos7 安装Mysql5.7

使用SecureCRT把mysql安装包上传到linux服务器,这里上传到/usr/local

rz

Centos7 安装Mysql5.7
解压缩

tar -zxvf mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz

重命名

mv mysql-5.7.31-linux-glibc2.12-x86_64 mysql

4. 添加mysql用户,修改mysql目录权限,并用此用户执行应用

useradd -s /bin/false -M mysql
cd /usr/local/mysql
chown -R mysql:mysql mysql

5. 在/etc/下新建 my.cnf文件

添加配置

[mysqld]
# binlog 
log-bin=/usr/local/mysql/logs/mysql-bin.log
expire-logs-days=14
max-binlog-size=500M
server-id=1
# GENERAL
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/usr/local/mysql/mysql.sock
user=mysql
default-storage-engine=InnoDB
character-set-server=utf8
lower_case_table_names = 1
explicit_defaults_for_timestamp=true
[mysqld_safe]
log-error=/usr/local/mysql/mysql-error.log
pid-file=/usr/local/mysql/mysqld.pid
[client]
socket=/usr/local/mysql/mysql.sock
[mysql]
default-character-set=utf8
socket=/usr/local/mysql/mysql.sock

对应的文件自己要手动添加

6. 安装mysql,进入mysql目录执行以下命令

cd /usr/local/mysql

bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

出现以下信息,代表成功,要保存一下密码

Centos7 安装Mysql5.7

7. 拷贝启动程序,将mysql的启动程序拷贝到/etc/init.d/目录下

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

8. 安装完,启动mysql服务

service mysqld start

9. 配置环境变量,编辑/etc/profile,方便在任何地方用mysql命令

vim /etc/profile

export MYSQL_HOME=/usr/local/mysql
export PATH=$PATH:$MYSQL_HOME/bin

配置文件生效

source /etc/profile

10. 首次登录没有密码,提示输入密码时,输入第6步安装时生成的密码

mysql -uroot -p

alter user ‘root‘@‘localhost‘ identified by ‘root‘;
flush privileges;

开启远程访问

GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘root‘ WITH GRANT OPTION;

11. mysql服务常用命令

service mysqld start     #启动
service mysqld stop        #关闭    
service mysqld restart    #重启    
service mysqld status     #查看运行状态 

Centos7 安装Mysql5.7

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