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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                Centos下升級MySQL數據庫 === ### 備份數據 ```bash $ mysqldump -u xxx -h xxx -P 3306 -p --all-databases > databases.sql ``` ### 查看版本 ```bash rpm -qa | grep mysql ``` ### 文件和配置文件備份 ```bash cp -R /data/mysql mysql-5.1-data cp /etc/my.cnf my.cnf-5.1 ``` ### 停止服務 ```bash systemctl stop mysqld ``` ### 方法一 此方法下,我并未刪除老的`MySQL`,然而我升級成功!不知有什么后遺癥沒有。 ```bash wget http://dev.mysql.com/get/mysql57-community-release-el6-8.noarch.rpm yum localinstall mysql57-community-release-el6-8.noarch.rpm yum install mysql-server mysqld --initialize --user=mysql # 找到密碼 vi /var/log/mysqld.log # 修改密碼 mysqladmin -uroot -p password # 采用拷貝粘貼,輸入舊密碼,設定新密碼 chkconfig mysqld on # 重啟 reboot ``` ### 方法二 ```bash # 卸載舊版本的Mysql yum remove mysql mysql-* # 執行之后再看看是不是殘余一些mysql-libs之類的 # 查看是否有殘余 yum list installed | grep mysql # 如果有,并確認沒用之后也可以刪除。 yum remove mysql-libs # 安裝 這個要更新源的前提 yum install mysql-server ``` ### 啟動 ```bash systemctl start mysqld ```
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