vmware 装个 Redhat7 然后再装个mysql、
系统版本：rhel-server-7.4-x86_64
软件版本： mysql-8.0.11-1.el7.x86_64
系统自己找、
mysql下载地址：https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.11-1.el7.x86_64.rpm-bundle.tar
安装系统：
需要注意的是：
如果需要安装图形化界面、在软件选择中要先选择带GUI的服务器
安装mysql：
创建用户：
groupadd mysql
useradd -g mysql mysql
passwd mysql
创建文件夹：
mkdir /mysql
chown mysql:mysql /mysql
上传mysql rpm包
解压mysql rpm包：
tar -xf mysql-8.0.11-1.el7.x86_64.rpm-bundle.tar
解压后文件为：
-rwxrwxrwx. 1 mysql mysql 26760484 4月 9 01:06 mysql-community-client-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 549512 4月 9 01:06 mysql-community-common-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 4221784 4月 9 01:06 mysql-community-devel-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 24343708 4月 9 01:06 mysql-community-embedded-compat-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 2349488 4月 9 01:06 mysql-community-libs-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 2156516 4月 9 01:06 mysql-community-libs-compat-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 119957152 4月 9 01:06 mysql-community-minimal-debuginfo-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 357581528 4月 9 01:07 mysql-community-server-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 20562556 4月 9 01:07 mysql-community-server-minimal-8.0.11-1.el7.x86_64.rpm
-rwxrwxrwx. 1 mysql mysql 45494324 4月 9 01:07 mysql-community-test-8.0.11-1.el7.x86_64.rpm开始安装：
由于系统中存在mariadb 包会导致 mysql安装时报错mariadb-libs 被 mysql-community-libs-8.0.11-1.el7.x86_64 取代
卸载mariadb 包：
yum remove mariadb*
卸载完成后开始安装mysql
有顺序：
[root@mysql mysql-rpm]# rpm -ivh mysql-community-common-8.0.11-1.el7.x86_64.rpm
警告：mysql-community-common-8.0.11-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-common-8.0.11-1.e################################# [100%]
[root@mysql mysql-rpm]# rpm -ivh mysql-community-libs-
mysql-community-libs-8.0.11-1.el7.x86_64.rpm
mysql-community-libs-compat-8.0.11-1.el7.x86_64.rpm
[root@mysql mysql-rpm]# rpm -ivh mysql-community-libs-8.0.11-1.el7.x86_64.rpm
警告：mysql-community-libs-8.0.11-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-libs-8.0.11-1.el7################################# [100%]
[root@mysql mysql-rpm]# rpm -ivh mysql-community-client-8.0.11-1.el7.x86_64.rpm
警告：mysql-community-client-8.0.11-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-client-8.0.11-1.e################################# [100%]
[root@mysql mysql-rpm]# rpm -ivh mysql-community-server-8.0.11-1.el7.x86_64.rpm
警告：mysql-community-server-8.0.11-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID 5072e1f5: NOKEY
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-server-8.0.11-1.e##### ( 16%) ################################# [100%]
安装完成后初始化mysql数据库：
[root@mysql etc]# mysqld --initialize --user=mysql查看初始随机密码：
cat /var/log/mysqld.log
2018-06-01T15:06:49.353471Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.11) initializing of server in progress as process 7940
2018-06-01T15:06:52.297427Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: rc6;6ghVosk;
2018-06-01T15:06:54.301806Z 0 [System] [MY-013170] [Server] /usr/sbin/mysqld (mysqld 8.0.11) initializing of server has completed初始密码为rc6;6ghVosk;
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开启mysql服务：
[root@mysql etc]#service mysqld start
Redirecting to /bin/systemctl start mysqld.service登陆mysql、修改root密码：
[root@mysql etc]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.11
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> alter user 'root'@'localhost'identified by '123456'
-> ;
Query OK, 0 rows affected (0.00 sec)