Linux 下使用tar.gz安装mysql5.7_mysql-5.7.43-linux-glibc2.12-x86_64.tar.gz

1、下载安装包

 wget https://dev.mysql.com/get/mysql-5.7.35-linux-glibc2.12-x86_64.tar.gz
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2、解压

tar -zxvf mysql-5.7.43-linux-glibc2.12-x86_64.tar.gz
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3、将解压后的文件夹改名

mv mysql-5.7.43-linux-glibc2.12-x86_64 mysql5.7
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4、将解压后的文件夹移动到/usr/lcoal/目录下并创建data目录

mv mysql5.7 /usr/local/
mkdir /usr/local/mysql5.7/data
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5、创建mysql用户

groupadd mysql
useradd -g mysql mysql
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6、编辑my.cnf文件

vim /etc/my.cnf
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将下面的内容粘贴到my.cnf文件中

[mysqld]
port=3306
user=mysql
basedir=/usr/local/mysql5.7
datadir=/usr/local/mysql5.7/data
socket=/tmp/mysql.sock
log-error=/usr/local/mysql5.7/data/mysql.err
pid-file=/usr/local/mysql5.7/data/mysql.pid
explicit_defaults_for_timestamp=true
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7、初始化

#先执行一下 yum -y install libaio 命令，防止报错
yum -y install libaio
cd /usr/local/mysql5.7
./bin/mysqld --initialize --user=mysql --datadir=/usr/local/mysql5.7/data/ --basedir=/usr/local/mysql5.7/
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初始化成功后会输入密码（绿色框中的），或者执行cat /usr/local/mysql5.7/data/mysql.err也可以看到。

8、创建软链接

ln -s /usr/local/mysql5.7/support-files/mysql.server /etc/init.d/mysql
ln -s /usr/local/mysql5.7/bin/mysql /usr/bin/mysql
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9、重新加载systemd守护进程配置

systemctl daemon-reload
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10、登录mysql

#回车后输入步骤7中的密码
mysql -uroot -p
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11、修改密码

ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';
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