How to install MySQL under Linux (yum and source code compilation)

# yum list installed |grep mysql 
//If there is a pre-installed mysql, uninstall it# yum -y remove mysql-libs.x86_64

# yum localinstall mysql57-community-release-el6-11.noarch.rpm
// Check if the yum repository is added successfully # yum repolist enabled |grep "mysql.*-community.*"

# vim /etc/yum.repos.d/mysql-community.repo
[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

# yum install mysql-community-server

# service mysqld start

Starting mysqld: [ OK ]

# yum -y install make gcc-c++ cmake bison-devel ncurses-devel

# cd mysql-5.6.14
# cmake .
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_DATADIR=/usr/local/mysql/data \
-DSYSCONFDIR=/etc \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DMYSQL_UNIX_ADDR=/var/lib/mysql/mysql.sock \
-DMYSQL_TCP_PORT=3306 \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_PARTITION_STORAGE_ENGINE=1 \
-DEXTRA_CHARSETS=all \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci
# make && make install

# useradd mysql
# passwd mysql 
# chown -R mysql:mysql /usr/local/mysql

# cd /usr/local/mysql
# scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql

# cd /usr/local/mysql/support-files
//Registration service# cp mysql.server /etc/rc.d/init.d/mysql
//Use the default configuration file# cp my-default.cnf /etc/my.cnf
//Set up startup# chkconfig mysql on

# service mysql start

update mysql.user set authentication_string=password("PASSWORD") where user="root";
flush privileges;

//Set password strength and length> set global validate_password_policy=0;
> set global validate_password_length=1;
//Change password> alter user 'root'@'localhost' identified by 'PASSWORD';

> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'PASSWORD' WITH GRANT OPTION;
> flush privileges;