Ubuntu18.04 install mysql 5.7.22

# Offline download, out of terminal control

wget -b https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz -o mysql-download.log

# unzip

tar zxf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

# Link

sudo ln -s /opt/mysql-5.7.22-linux-glibc2.12-x86_64/ /opt/mysql

# Install necessary packages

sudo apt-cache search libaio
sudo apt-get install libaio1

# Create user group

sudo groupadd mysql
sudo useradd -r -g mysql -s /bin/false mysql

# Create server configuration file

cat > /opt/mysql/etc/my.cnf <<CNF
[mysqld]
basedir=/opt/mysql
datadir=/data/mysql
port=3306
socket=/data/mysql/mysql.sock
max_connections=260
pid-file=/data/mysql/mysql.pid
log-error=/data/mysql/error.log
CNF

# Initialize the data directory

sudo /opt/mysql/bin/mysqld --defaults-file=/opt/mysql/etc/my.cnf --user=mysql --initialize-insecure
SQL> alter user root@localhost identified by '1';

 

# start MySQL

sudo /opt/mysql/bin/mysqld --defaults-file=/opt/mysql/etc/my.cnf --user=mysql 2>&1 &

# Create client configuration file

cat >~/.my.cnf <<EOF
[client]
user=root
password = 1 
socket =/data/mysql/mysql.sock #Configured in /opt/mysql/etc/my.cnf . for native process communication
EOF