centos7.3中RPM方式安裝mysql5.7

首先去下載rpm安裝包：https://dev.mysql.com/downloads/mysql/，選擇紅帽linux64位版。然后上傳到服務器中。

[root@cs mysql]# ls
mysql-community-client-5.7.20-1.el7.x86_64.rpm  mysql-community-embedded-5.7.20-1.el7.x86_64.rpm         mysql-community-libs-5.7.20-1.el7.x86_64.rpm               mysql-community-server-5.7.20-1.el7.x86_64.rpm
mysql-community-common-5.7.20-1.el7.x86_64.rpm  mysql-community-embedded-compat-5.7.20-1.el7.x86_64.rpm  mysql-community-libs-compat-5.7.20-1.el7.x86_64.rpm        mysql-community-server-minimal-5.7.20-1.el7.x86_64.rpm
mysql-community-devel-5.7.20-1.el7.x86_64.rpm   mysql-community-embedded-devel-5.7.20-1.el7.x86_64.rpm   mysql-community-minimal-debuginfo-5.7.20-1.el7.x86_64.rpm  mysql-community-test-5.7.20-1.el7.x86_64.rpm

接下來就是安裝了,如果是普通用戶需要sudo權限，並在執行命令前加sudo。如果安裝過mysql先用命令卸載掉相關的包。rpm安裝是有依賴關系的所以我們要按照順序進行安裝：

[root@cs mysql]# rpm -ivh mysql-community-common-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-common-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
	file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.20-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.52-1.el7.x86_64

提示和我們安裝的有沖突，我們找到這個包並卸載掉：

[root@cs mysql]# rpm -qa|grep mariadb
mariadb-libs-5.5.52-1.el7.x86_64
[root@cs mysql]# rpm -e --nodeps mariadb-libs-5.5.52-1.el7.x86_64

再次安裝：

[root@cs mysql]# rpm -ivh mysql-community-common-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-common-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-common-5.7.20-1.e################################# [100%]

[root@cs mysql]# rpm -ivh mysql-community-libs-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-libs-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-libs-5.7.20-1.el7################################# [100%]

[root@cs mysql]# rpm -ivh mysql-community-client-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-client-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-client-5.7.20-1.e################################# [100%]

[root@cs mysql]# rpm -ivh mysql-community-server-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-server-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
	libaio.so.1()(64bit) is needed by mysql-community-server-5.7.20-1.el7.x86_64
	libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-5.7.20-1.el7.x86_64
	libaio.so.1(LIBAIO_0.4)(64bit) is needed by mysql-community-server-5.7.20-1.el7.x86_64

提示安裝失敗，這是因為我們少這個依賴庫，用yum進行安裝（centos6.5的則還可能缺少一個庫，也需要安裝一下 yum install numactl ）：

[root@cs mysql]# yum install libaio
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package libaio.x86_64 0:0.3.109-13.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==============================================================================================================================================================================================================================================================================
 Package                                                         Arch                                                            Version                                                                  Repository                                                     Size
==============================================================================================================================================================================================================================================================================
Installing:
 libaio                                                          x86_64                                                          0.3.109-13.el7                                                           base                                                           24 k

Transaction Summary
==============================================================================================================================================================================================================================================================================
Install  1 Package

Total download size: 24 k
Installed size: 38 k
Is this ok [y/d/N]: y
Downloading packages:
libaio-0.3.109-13.el7.x86_64.rpm                                                                                                                                                                                                                       |  24 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
2:postfix-2.10.1-6.el7.x86_64 has missing requires of libmysqlclient.so.18()(64bit)
2:postfix-2.10.1-6.el7.x86_64 has missing requires of libmysqlclient.so.18(libmysqlclient_18)(64bit)
  Installing : libaio-0.3.109-13.el7.x86_64                                                                                                                                                                                                                               1/1 
  Verifying  : libaio-0.3.109-13.el7.x86_64                                                                                                                                                                                                                               1/1 

Installed:
  libaio.x86_64 0:0.3.109-13.el7                                                                                                                                                                                                                                              

Complete!

再次安裝：

[root@cs mysql]# rpm -ivh mysql-community-server-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-server-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-server-5.7.20-1.e################################# [100%]

[root@cs mysql]# rpm -ivh mysql-community-libs-compat-5.7.20-1.el7.x86_64.rpm 
warning: mysql-community-libs-compat-5.7.20-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing...                          ################################# [100%]
Updating / installing...
   1:mysql-community-libs-compat-5.7.2################################# [100%]

到此，安裝完成。然后我們進行初始化數據庫，因為我是root安裝的所以想要指定一個mysql用，用mysql啟動。根據自己的需要也可以不加。初始化：

[root@cs mysql]# mysqld --initialize --user=mysql

啟動數據庫並：

[root@cs mysql]# systemctl start mysqld

設置開機自動啟動並查看是否設置成功：

[root@cs mysql]# systemctl enable mysqld
[root@cs mysql]# systemctl is-enabled mysqld
enabled

因為mysql5.7的會有一個隨機密碼在日志中生成，我們查找一下，密碼這語句的最后：

[root@cs mysql]# grep 'temporary password' /var/log/mysqld.log
2017-11-17T08:05:05.411354Z 1 [Note] A temporary password is generated for root@localhost: Ret6HK7sab<a

然后我們就可以用密碼登陸數據庫，並修改密碼或增加遠程訪問權限了：

set password for 'root'@'localhost'=password('666666');
GRANT ALL PRIVILEGES ON *.* TO 'name'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;FLUSH PRIVILEGES;

小寫部分為修改密碼；大寫部分為設置遠程登陸權限。大功告成！