1.解压
tar -zxvf mysql-5.7.37-linux-glibc2.12-x86_64.tar.gz
2.创建mysql用户组和用户并修改权限
groupadd mysql
useradd -r -g mysql mysql
3.创建数据目录并赋予权限
mkdir -p /data/mysql #创建目录
chown mysql:mysql -R /data/mysql #赋予权限
4.修改my.cnf
vim /etc/my.cnf
[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/root/mysql5.7
datadir=/data/mysql
socket=/tmp/mysql.sock
log-error=/data/mysql/mysql.err
pid-file=/data/mysql/mysql.pid
#character config
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true
5.初始化数据库
进入bin目录
cd bin/
./mysqld --defaults-file=/etc/my.cnf --basedir=/root/mysql5.7/ --datadir=/data/mysql/ --user=mysql --initialize
6.查看密码
cat /data/mysql/mysql.err
- 启动mysql，并更改root 密码
先将mysql.server放置到/etc/init.d/mysql中
cp /root/mysql5.7/support-files/mysql.server /etc/init.d/mysql
8.启动
yum install -y libaio
service mysql start
ps -ef|grep mysql
9.修改密码
./mysql -u root -p
SET PASSWORD = PASSWORD('123456');
ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
FLUSH PRIVILEGES;
use mysql #访问mysql库
update user set host = '%' where user = 'root'; #使root能再任何host访问
FLUSH PRIVILEGES; #刷新
CnetOs7开启方式3306
firewall-cmd --permanent --zone=public --add-port=3306/tcp
firewall-cmd --reload
