1.下載和解壓mysql資料庫

wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.11-linux-glibc2.5-x86_64.tar.gz

（32位的下載  wget 'http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.16-linux-glibc2.5-i686.tar.gz'）

sudo tar -zxvf mysql-5.7.11-linux-glibc2.5-x86_64.tar.gz
sudo cp -r mysql-5.7.11-linux-glibc2.5-x86_64 /usr/local/
cd /usr/local 
sudo mv mysql-5.7.11-linux-glibc2.5-x86_64/ mysql-5.7.11


2.建立軟連結
sudo ln -s mysql-5.7.11 mysql


3.建立mysql使用者和修改軟體的許可權
   sudo -s
   useradd -r -M -s /sbin/nologin mysql
   chown -R mysql.mysql  /usr/local/mysql-5.7.11
   chown -R mysql.mysql /usr/local/mysql
   chgrp -R mysql /usr/local/mysql-5.7.11


4.安裝和初始化資料庫


   cd /usr/local/mysql/

   bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/            --必須在mysql根目錄安裝mysql,否則出錯

(有可能會會報錯/usr/local/mysql/bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory  這個時候yum install libaio即可

或者執行bin/mysqld –initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/ --defaults-file=/etc/my.cnf

)

   sudo rm /etc/my.cnf
   cp -a ./support-files/my-default.cnf  /etc/my.cnf
   sudo rm /etc/init.d/mysqld
   cp -a ./support-files/mysql.server  /etc/init.d/mysqld


   cd bin/
   /usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf  &
   mysql   (此時如果出現ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'，請檢查my.cnf中socket = /var/lib/mysql/mysql.sock行是否被註釋)
   ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)  看第5步


   /etc/init.d/mysqld restart
   Shutting down MySQL..                                      [  OK  ]
   Starting MySQL...                                          [  OK  ]


  #開機啟動
  chkconfig --level 35 mysqld on


5.初始化密碼


mysql5.7會生成一個初始化密碼，而在之前的版本首次登陸不需要登入。


shell> cat /root/.mysql_secret 
***
mysql -uroot -p 
Enter password: ***
ERROR 1862 (HY000): Your password has expired. To log in you must change it using a client that supports expired passwords.


kill mysql pid
/usr/local/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf --skip-grant-tables &
mysql
mysql> select user,host,password_expired from mysql.user;
+-----------+-----------+------------------+
| user      | host      | password_expired |
+-----------+-----------+------------------+
| root      | localhost | Y                |
| mysql.sys | localhost | N                |
+-----------+-----------+------------------+
2 rows in set (0.00 sec)


mysql> update mysql.user set password_expired='N' where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0


mysql> update mysql.user set authentication_string=password('root') where user='root' and Host = 'localhost';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1  Changed: 0  Warnings: 1


mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)


mysql> exit




mysql -hlocalhost -uroot -proot


哈 大功告成！！