一、mysal 压缩文件通过ftp 放入\opt-->解压

cd /opt
tar -xzvf mysql-5.7.29-linux-glibc2.12-×86_64.tar.gz

二、移动一>创建data 目录一＞创建用户组

mv mysql-5.7.29-linux-glibc2.12-×86_64 /usr/local
cd /usr/local
mv mysql-5.7.29-linux-glibc2.12-×86_64 mysql
cd /usr/local/mysql
mkdir data
groupadd mysql
useradd -r -g mysql mysql

三、编辑my.cnf，拷贝如下配置文件vi /etc/my.cnf

[mysald]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port = 3306
socket=/tmp/mysql.sock
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/tmp/mysqld/mysqld.pid
sqL_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY,ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
log-bin=mysql-bin
binlog-format=ROW
server_id=1
max_connections=1000
init_connect='SET collation connection=utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake

四、mysql.sock、mysqld，初始化、安全启动

cd /tmp
touch mysql.sock
chown mysql:mysql mysql.sock
chmod 755 mysql.sock
mkdir mysald
cd /tmp/mysqld
touch mysqld.pid
cd ..
chown -R mysql:mysql mysqld
cd mysqld
chmod 755 mysqld.pid
cd /var/log
touch /var/log/mysqld.log
cd ..
chown -R mysql:mysql /var/log
cd log
chmod 755 mysqld.log
cd /usr/local/mysql/bin/
./mysqld --initialize --user=mysql--basedir=/usr/local/mysql--datadir=/usr/local/mysql/data
./mysqld_safe --user=mysql &

五、获取密码

cat /var/log/mysqld.log |grep password

六、启动mysql

cd /user/local/mysql/bin/ ./mysql -u root -p

七、更换root初始密码

set password=password("root mm");
grant all privileges on * * to 'root'@'%' identified by 'root mm'; 
flush privileges;

八、设置开机启动＋创建快捷方式

cp -a /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
chkconfig --add mysql
In -s /usr/local/mysql/bin/mysql /usr/bin
In -s /usr/local/mysql/bin/mysqladmin /usr/bin

九、创建mysql数据库—>创建用户一—>权限控制

create database db1;
create user 'u1'@'%' identified by 'm1'
grant all privileges on u1.* to 'm1'@'%' identified by 'm1' with grant option;
flush privileges