Centos7安装MySQL5.7版本

Bertha 。 2022-04-15 04:38 351阅读 0赞

系统环境：Centos7

mysql版本：5.7

安装方式：RPM安装

**1、卸载系统自带Mariadb**

Centos7 已经不自带MySQL，自带内部集成了Mariadb，而安装MySQL的话会和Mariadb的文件冲突，所以需要先卸载掉Mariadb，再安装MySQL。

[root@server1 ~]# rpm -qa | grep mariadb
    mariadb-libs-5.5.56-2.el7.x86_64
    
    [root@server1 ~]# rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64
    
    [root@server1 ~]# rpm -qa | grep mariadb
    [root@server1 ~]#

**2、准备安装包**

链接：[https://pan.baidu.com/s/1dLFagL9xEaDo4RygPj7X1g][https_pan.baidu.com_s_1dLFagL9xEaDo4RygPj7X1g]  
提取码：gtv3

![2018112116151842.png][]

**3、安装mysql**

**3.1 安装依赖包**

yum install -y perl-Module-Install.noarch perl libaio libnuma\* net-tools

**3.2 rpm 安装MySQL**

cd /usr/local/src/MySql-5.7 \#切换到安装包目录

下面有命令

\[root@server1 MySql-5.7\]\# rpm -ivh mysql-community-common-5.7.20-1.el7.x86\_64.rpm  
警告：mysql-community-common-5.7.20-1.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-5.7.20-1.e\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
\[root@server1 MySql-5.7\]\# rpm -ivh mysql-community-libs-5.7.20-1.el7.x86\_64.rpm  
警告：mysql-community-libs-5.7.20-1.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-5.7.20-1.el7\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]  
\[root@server1 MySql-5.7\]\# rpm -ivh mysql-community-client-5.7.20-1.el7.x86\_64.rpm  
警告：mysql-community-client-5.7.20-1.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-5.7.20-1.e\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]

\[root@server1 MySql-5.7\]\# rpm -ivh mysql-community-server-5.7.20-1.el7.x86\_64.rpm  
警告：mysql-community-server-5.7.20-1.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-5.7.20-1.e\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# \[100%\]

rpm -ivh mysql-community-common-5.7.20-1.el7.x86_64.rpm
    rpm -ivh mysql-community-libs-5.7.20-1.el7.x86_64.rpm
    rpm -ivh mysql-community-client-5.7.20-1.el7.x86_64.rpm
    rpm -ivh mysql-community-server-5.7.20-1.el7.x86_64.rpm

**3.3 启动mysql**

[root@server1 MySql-5.7]# systemctl start mysqld #启动
    [root@server1 MySql-5.7]# systemctl enable mysqld #开机启动
    [root@server1 MySql-5.7]# systemctl status mysqld #查看状态
    ● mysqld.service - MySQL Server
    Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
    Active: active (running) since 一 2018-11-19 10:43:24 CST; 15s ago
    Docs: man:mysqld(8)
    http://dev.mysql.com/doc/refman/en/using-systemd.html
    Main PID: 5450 (mysqld)
    CGroup: /system.slice/mysqld.service
    └─5450 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid
    
    11月 19 10:43:17 server1 systemd[1]: Starting MySQL Server...
    11月 19 10:43:24 server1 systemd[1]: Started MySQL Server.

**3.4获取mysql默认密码并修改密码**

[root@server1 MySql-5.7]# grep "password" /var/log/mysqld.log 
    2018-11-19T02:43:20.789934Z 1 [Note] A temporary password is generated for root@localhost: CQ=LgyNzs369
    [root@server1 MySql-5.7]# mysql -uroot -pCQ=LgyNzs369
    
    mysql> SET PASSWORD = PASSWORD("Cmzw.2018"); #修改密码
    Query OK, 0 rows affected, 1 warning (0.00 sec)

[https_pan.baidu.com_s_1dLFagL9xEaDo4RygPj7X1g]: https://pan.baidu.com/s/1dLFagL9xEaDo4RygPj7X1g
[2018112116151842.png]: /images/20220415/9a32e591cad34fc3bda6c48123d0c9b7.png