一：到mysql官网下载最新的mysql包
二：在linux /usr/local/中解压mysql压缩包 改名为mysql
# cd /usr/local/
# tar -xzvf mysql 压缩包名
三：创建用户组mysql，创建用户mysql并将其添加到用户组mysql中，并赋予读写权限
# groupadd mysql --创建mysql用户组组
# useradd -r -g mysql mysql --创建mysql用户并添加到mysql用户组中
# chown -R mysql mysql/ --将mysql目录访问权限赋为myql用户
# chgrp -R mysql mysql/ --改变mysql目录的用户组属于mysql组
四：创建配置文件 保存并退出
# vim /etc/my.cnf
#复制以下内容 开始-----------------------------------
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
#不区分大小写
lower_case_table_names = 1
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
max_connections=5000
default-time_zone = '+8:00'
#复制以下内容 结束-----------------------------------
五：初始化数据库
# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --lc_messages_dir=/usr/local/mysql/share --lc_messages=en_US
查看日记 cat /var/log/mysqld.log
看到有错误信息（第1次报错）
2018-10-10 16:50:42 21449 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
于是上网找原因：
从报错上来看，是由于缺少了mysql.plugin表所致的，不过现在连启动都启动不了，怎样创建表呢？所以肯定是其他原因导致的，于时继续网上找继续试，最后找到了这个处理方法，进入mysql安装后的目录scripts执行以下语句：
# /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
又报错下，如下:（第2次报错）
FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db:
Data::Dumper
好吧，继续百度
解决方法 ：安装autoconf库
# yum -y install autoconf //此包安装时会安装Data:Dumper模块
六、配置环境变量
在文件中增加以下两行：
export MYSQL_HOME="/usr/local/mysql"
export PATH="$PATH:$MYSQL_HOME/bin"
七、让环境变量生效
#source /etc/profile
八、添加自启动服务
#chkconfig --add mysql
#chkconfig mysql on
九、启动mysql
#cd /user/local/mysql/bin
#service mysql start
十、增加root用户密码：
#cd /user/local/mysql/bin
#mysqladmin -u root password 'hww123456'
如果报mysqladmin：command not found
# ln -s /user/local/mysql/bin/mysql /usr/bin
# ln -fs /user/local/mysql/bin/mysql mysql
十一、登录mysql 创建用户并赋予所有权限使得远程可以访问
#mysql -u root -p
#GRANT ALL PRIVILEGES ON *.* TO test@"%" IDENTIFIED BY "123456";
后面按照上面的方式安装不成功了，不知道啥原因，又有了下面的方式，步骤 一，二，三 是一样的
cd mysql/scripts
[root@localhost scripts]# ./mysql_install_db --user=mysql --datadir=/usr/local/mysql/data/ --basedir=/usr/local/mysql
FATAL ERROR: please install the following Perl modules before executing ./mysql_install_db:
Data::Dumper
# yum -y install autoconf //此包安装时会安装Data:Dumper模块
[root@localhost scripts]# ./mysql_install_db --user=mysql --datadir=/usr/local/mysql/data/ --basedir=/usr/local/mysql
Installing MySQL system tables...2019-03-28 16:08:27 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-03-28 16:08:27 0 [Warning] 'ERROR_FOR_DIVISION_BY_ZERO' is deprecated and will be removed in a future release.
2019-03-28 16:08:27 0 [Warning] 'NO_ZERO_DATE' is deprecated and will be removed in a future release.
2019-03-28 16:08:27 0 [Warning] 'NO_ZERO_IN_DATE' is deprecated and will be removed in a future release.
2019-03-28 16:08:27 0 [Note] Ignoring --secure-file-priv value as server is running with --bootstrap.
2019-03-28 16:08:27 0 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.6.41) starting as process 4649 ...
/启动脚本
[root@localhost mysql]# cp support-files/mysql.server /etc/init.d/mysqld
==========/et/my.cnf ===================
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
character_set_server=utf8
init_connect='SET NAMES utf8'
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
log-error=/var/log/mysqld.log
#pid-file=/var/run/mysqld/mysqld.pid
#不区分大小写
lower_case_table_names = 1
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
max_connections=5000
default-time_zone = '+8:00'
==============================
[root@localhost mysql]# /etc/init.d/mysqld start
//修改root用户的密码
[root@localhost scripts]# cd /usr/local/mysql/bin/
[root@localhost bin]# mysqladmin -u root password '123456'
[root@localhost bin]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.6.41 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> GRANT ALL PRIVILEGES ON *.* TO test@"%" IDENTIFIED BY "123456";
Query OK, 0 rows affected (0.09 sec)
//登录mysql 创建用户并赋予所有权限使得远程可以访问
GRANT ALL PRIVILEGES ON *.* TO test@"%" IDENTIFIED BY "123456";