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CentOS 7 64位下MySQL5.7卸載改成MySQL5.6版本(YUM)

2021-6-29 前端達人

1：檢查是否安裝了MySQL組件。

[root@DB-Server init.d]# rpm -qa | grep -i mysql

mysql-community-client-5.7.19-1.el7.x86_64
mysql-community-common-5.7.19-1.el7.x86_64
mysql-community-libs-compat-5.7.19-1.el7.x86_64
mysql-community-libs-5.7.19-1.el7.x86_64
qt-mysql-4.8.5-13.el7.x86_64
mysql57-community-release-el7-11.noarch
mysql-community-server-5.7.19-1.el7.x86_64
perl-DBD-MySQL-4.023-5.el7.x86_64

2：卸載前關閉MySQL服務

systemctl stop mysqld

yum -y remove mysql-community-client-5.7.19-1.el7.x86_64
yum -y remove mysql-community-common-5.7.19-1.el7.x86_64
yum -y remove mysql-community-libs-compat-5.7.19-1.el7.x86_64
yum -y remove mysql57-community-release-el7-11.noarch
yum -y remove mysql-community-server-5.7.19-1.el7.x86_64

3：刪除MySQL對應的文件夾

檢查各個MySQL文件夾是否清理刪除干凈。

[root@DB-Server init.d]# whereis mysql

mysql:

[root@DB-Server init.d]# find / -name mysql

/var/lib/mysql

/var/lib/mysql/mysql

/usr/lib64/mysql

[root@DB-Server init.d]# rm -rf /var/lib/mysql

[root@DB-Server init.d]# rm -rf /var/lib/mysql/mysql

[root@DB-Server init.d]# rm -rf /usr/lib64/mysql

4：確認MySQL是否卸載刪除

[root@DB-Server init.d]# rpm -qa | grep -i mysql

5：重新安裝MySQL5.6版本，主要參考（略寫，主要參考以下鏈接）

http://blog.csdn.net/huhuhuemail/article/details/77498891

shell> wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm shell> yum mysql57-community-release-el7-11.noarch.rpm  


    

        

            

            

        

        

            
                這步如果報錯：已加載插件：fastestmirror, langpacks
            

        

    

    

        

            

            

        

        

            
                沒有該命令：mysql57-community-release-el7-11.noarch.rpm。請使用 /usr/bin/yum --help
            

        

    


改用以下命令：


    

        

            

            

        

        

            
                yum localinstall mysql57-community-release-el7-11.noarch.rpm 
            

        

    

    

        

            

            

        

        

            

            

        

    





    

        

            

            

        

        

            
                shell> yum repolist enabled | grep "mysql.*-community.*"
            

        

    

    

        

            

            

        

        

            

            

        

    





    

        

            

            

        

        

            
                shell> yum install mysql-community-server
            

        

    

    

        

            

            

        

        

            

            

        

    





    

        

            

            

        

        

            
                修改mysql配置文件
            

        

    

    

        

            

            

        

        

            

            

        

    


啟動MySQL服務