亲测验证适用于5.7.10

1. 获得二进制文件 
wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz

2. 加压到 /usr/local/mysql 目录(或者解压到当前目录然后做软链接到/usr/local/mysql)
mkdir /usr/local/mysql
tar -xvf mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz
mv mysql-5.7.10-linux-glibc2.5-x86_64/* /usr/local/mysql/

3. 创建 /usr/local/mysql/data 目录
mkdir /usr/local/mysql/data

4. 创建mysql用户和修改软件的权限
groupadd mysql
useradd -r -g mysql mysql -s /sbin/nologin (创建mysql用户并设置不可登录)
chown -R mysql.mysql /usr/local/mysql/

5. 初始化数据(切换当前目录到/usr/local/mysql)
bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/
2016-01-20 02:47:35 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2016-01-20 02:47:45 [WARNING] The bootstrap log isn‘t empty:
2016-01-20 02:47:45 [WARNING] 2016-01-19T18:47:36.732678Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead
2016-01-19T18:47:36.750527Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2016-01-19T18:47:36.750560Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)

6. 复制配置文件到 /etc/my.cnf
cp -a ./support-files/my-default.cnf /etc/my.cnf (如果问是否替换选择Y)

7. mysql的服务脚本放到系统服务中
cp -a ./support-files/mysql.server /etc/init.d/mysqld
service mysqld start 
cat /root/.mysql_secret
# Password set for user ‘root@localhost‘ at 2016-01-20 03:22:59 
Tl:iRfEhRlQ6
bin/mysql -uroot -p(输入Tl:iRfEhRlQ6)
[root@c12 mysql57]# ./bin/mysqladmin -u root -p password
Enter password: 
New password: 
Confirm new password: 
Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety.
mysql> select version();
+-----------+
| version() |
+-----------+
| 5.7.8-rc |
+-----------+
1 row in set (0.00 sec)

----------------------------------------新增随笔-----------------------------------------------

依据官方说明5.6以后版本，第一次启动时会在root目录下生产一个随机密码，文件名.mysql_secret。

------------------mysqld: command not found----------------------

[root@Llover www]# mysqld -uroot
-bash: mysqld: command not found

原因:这是由于系统默认会查找/usr/bin下的命令，如果这个命令不在这个目录下，当然会找不到命令，我们需要做的就是映射一个链接到/usr/bin目录下，相当于建立一个链接文件。

首先得知道mysql命令完整路径，比如我的Linux的mysql的路径是：/usr/local/mysql/bin/mysql，我们则可以这样执行命令：

 /usr/local/mysql/bin/mysql  -uroot这样执行命令，或者创建一个软链接

 ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql

--------------------设置外网访问----------------------
update user set host = ‘%‘ where user =‘root‘;

GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%’ IDENTIFIED BY ‘84803368‘ WITH GRANT OPTION;
flush privileges;

mysql安装转自 http://www.cnblogs.com/azhw/p/5143232.html