mysql5.6.8 source code installation process

[root@opop ~]# cat /etc/centos-release 
CentOS release 6.8 (Final)
[root@opop ~]# uname -a
Linux opop 2.6.32-642.el6.x86_64 #1 SMP Tue May 10 17:27:01 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[root@opop ~]# for i in `rpm -qa | grep mysql`;do yum remove $i;done // first delete the built-in mysql
[root@opop ~]# yum -y install wget gcc gcc-c++ ncurses-devel cmake make perl bison git

[root@opop ~]# groupadd mysql 
[root@opop ~]# useradd -r -g mysql mysql

[root@opop ~]# mkdir -p /usr/local/mysql
[root@opop ~]# mkdir -p /usr/local/mysql/data

[root@opop ~]# chown -R mysql:mysql /usr/local/mysql/data 
[root@opop ~]# chown -R mysql:mysql /usr/local/mysql

[root@opop ~]# tar -zxvf mysql-5.6.38.tar.gz
[root@opop ~]# cd mysql-5.6.38

[root@opop mysql-5.6.38 ]# cmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DMYSQL_TCP_PORT=3306 \
-DMYSQL_USER=mysql \
-DENABLE_DOWNLOADS=1
[root@opop mysql-5.6.38 ]# make && make install
//Note: The compilation time is long, please wait patiently//Check the result:
//[root@opop mysql-5.6.38 ]# ll /usr/local/mysql/

[root@opop mysql-5.6.38 ]# make clean

[root@opop ~]# cd /usr/local/mysql/
[root@opop mysql]# scripts/mysql_install_db --user=mysql --datadir=/usr/local/mysql/data 
[root@opop mysql ]# chown -R mysql:mysql /usr/local/mysql 
[root@opop mysql ]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
[root@opop mysql ]# /etc/init.d/mysql start
[root@opop mysql ]# ps -aux |grep mysql

[root@opop mysql]# vim /etc/profile

PATH=$PATH:$HOME/bin:/usr/local/mysql/bin:/usr/local/mysql/lib 
export PATH

[root@opop mysql]# source /etc/profile

[root@opop mysql]# service mysql restart

[root@opop mysql]# mysql -u root mysql

mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";
//Add remote connection capability to root, please operate with caution.

mysql> update user set password = password('111111') where User='root'; //Update the root password to 6 1s

mysql> flush privileges;

mysql> exit

[root@opop mysql]# mysql -u root -p 
Enter password: //Enter 6 1s here to enter

[root@opop mysql]# chkconfig mysql on