一.环境准备
需要rhel7.2的服务器一台
[root@desktop ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 7.2 (Maipo)
彻底禁用SELinux
[root@desktop ~]# sed -i \'/^SELINUX/s/=.*/=disabled/\' /etc/selinux/config
修改firewall为trueted
[root@desktop ~]# firewall-cmd --set-default-zone=trusted
MySQL官网下载Redhat7.2rpm包地址
https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar
二.安装MySQL数据库
创建目录MySQL，存放官网下载的rpm包
[root@desktop ~] mkdir /mysql
进入创建/mysql目录下
[root@desktop ~] cd /mysql
执行下载命令,如果服务器不能连接外网可以通过其他机器下载然后传过去
[root@desktop mysql]# wget https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar
通过tar命令解压
[root@desktop mysql]# tar -xf mysql-5.7.21-1.el7.x86_64.rpm-bundle.tar
解压后内容如下
[root@desktop mysql]# ls mysql-community-client-5.7.21-1.el7.x86_64.rpm mysql-community-common-5.7.21-1.el7.x86_64.rpm mysql-community-devel-5.7.21-1.el7.x86_64.rpm mysql-community-embedded-5.7.21-1.el7.x86_64.rpm mysql-community-embedded-compat-5.7.21-1.el7.x86_64.rpm mysql-community-embedded-devel-5.7.21-1.el7.x86_64.rpm mysql-community-libs-5.7.21-1.el7.x86_64.rpm mysql-community-libs-compat-5.7.21-1.el7.x86_64.rpm mysql-community-minimal-debuginfo-5.7.21-1.el7.x86_64.rpm mysql-community-server-5.7.21-1.el7.x86_64.rpm mysql-community-server-minimal-5.7.21-1.el7.x86_64.rpm mysql-community-test-5.7.21-1.el7.x86_64.rpm
下面这个包为最小化安装所以要删除它
[root@desktop mysql]# rm -rf mysql-community-server-minimal-5.7.21-1.el7.x86_64.rpm
因为Redhat7.2系统默认带mariadb数据库我们要卸载它
[root@desktop mysql]# rpm -qa | grep -i mariadb mariadb-libs-5.5.44-2.el7.x86_64
[root@desktop mysql]# rpm -e --nodeps mariadb-libs
[root@desktop mysql]# rm -rf /etc/my.cnf
安装依赖包
yum -y install perl-Data-Dumper perl-JSON
安装当前目录下的所有以mysql-community-开头的rpm包
[root@desktop mysql]# rpm -Uvh mysql-community-*.rpm
准备中... ################################# [100%]
正在升级/安装...
1:mysql-community-common-5.7.21-1.e################################# [ 9%]
2:mysql-community-libs-5.7.21-1.el7################################# [ 18%]
3:mysql-community-client-5.7.21-1.e################################# [ 27%]
4:mysql-community-server-5.7.21-1.e################################# [ 36%]
5:mysql-community-devel-5.7.21-1.el################################# [ 45%]
6:mysql-community-embedded-5.7.21-1################################# [ 55%]
7:mysql-community-embedded-devel-5.################################# [ 64%]
8:mysql-community-test-5.7.21-1.el7################################# [ 73%]
9:mysql-community-libs-compat-5.7.2################################# [ 82%]
10:mysql-community-embedded-compat-5################################# [ 91%]
11:mysql-community-minimal-debuginfo################################# [100%]
通过此命令检测下刚才所安装包，如以下图显示结果一样则为安装成功
[root@desktop mysql]# rpm -qa | grep -i mysql mysql-community-client-5.7.21-1.el7.x86_64 mysql-community-minimal-debuginfo-5.7.21-1.el7.x86_64 mysql-community-embedded-5.7.21-1.el7.x86_64 mysql-community-common-5.7.21-1.el7.x86_64 mysql-community-devel-5.7.21-1.el7.x86_64 mysql-community-libs-compat-5.7.21-1.el7.x86_64 mysql-community-server-5.7.21-1.el7.x86_64 mysql-community-test-5.7.21-1.el7.x86_64 mysql-community-embedded-devel-5.7.21-1.el7.x86_64 mysql-community-libs-5.7.21-1.el7.x86_64 mysql-community-embedded-compat-5.7.21-1.el7.x86_64
通过该命令启动数据库
[root@desktop mysql]# systemctl start mysqld
通过该命令来查看数据库状态
[root@desktop mysql]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since 二 2018-03-20 13:42:40 CST; 50s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 9238 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 8999 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 9242 (mysqld) CGroup: /system.slice/mysqld.service └─9242 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.p... 3月 20 13:42:25 desktop systemd[1]: Starting MySQL Server... 3月 20 13:42:25 desktop mysqld_pre_systemd[8999]: No such file or directory 3月 20 13:42:25 desktop mysqld_pre_systemd[8999]: No such file or directory 3月 20 13:42:26 desktop python[9032]: detected unhandled Python exception in \'/...e\' 3月 20 13:42:32 desktop python[9032]: communication with ABRT daemon failed: ti...ut 3月 20 13:42:32 desktop mysqld_pre_systemd[8999]: No such file or directory 3月 20 13:42:33 desktop python[9107]: detected unhandled Python exception in \'/...e\' 3月 20 13:42:33 desktop mysqld_pre_systemd[8999]: No such file or directory 3月 20 13:42:40 desktop systemd[1]: Started MySQL Server. Hint: Some lines were ellipsized, use -l to show in full.
为数据库设置开机自启
[root@desktop mysql]# systemctl enable mysqld
现在数据库已经安装完且已经启动，root用户密码在
[root@desktop ~]# grep -i "password" /var/log/mysqld.log 2018-03-20T05:42:34.655593Z 1 [Note] A temporary password is generated for root@localhost: %whs%uFWF8Kj
登录数据库
[root@desktop ~]# mysql -uroot -p\'%whs%uFWF8Kj\' mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.21 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>
登录之后查库出现报错，更改密码就可以了
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
更改数据库root密码
mysql> set global validate_password_policy=0; Query OK, 0 rows affected (0.00 sec) mysql> set global validate_password_length=6; Query OK, 0 rows affected (0.00 sec) mysql> alter user root@"localhost" identified by "123456"; Query OK, 0 rows affected (0.01 sec)