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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                >如果你使用了 RDS 之類的,就不用安裝它了! ## 安裝 `MySQL5.7.*` 1.安裝`mysql`源 ``` $ yum localinstall http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm ``` 2.安裝`mysql` ``` $ yum install mysql-community-server ``` 確認一下`mysql`的版本,有時可能會提示`mysql5.6` 3.安裝`mysql`的開發包,以后會有用 ``` $ yum install mysql-community-devel ``` 4.啟動`mysql` ``` $ service mysqld start Redirecting to /bin/systemctl start mysqld.service ``` 5.查看`mysql`啟動狀態 ``` $ service mysqld status ``` 出現`pid` 證明啟動成功 6.獲取`mysql`默認生成的密碼 ``` $ grep 'temporary password' /var/log/mysqld.log ``` 2015-12-05T05:41:09.104758Z 1 [Note] A temporary password is generated for root@localhost: %G1Rgns!dD!v</str></str> 加粗的就是生成的密碼 7.換成自己的密碼 ``` $ mysql -uroot -p Enter password:輸入上面的密碼 ``` 成功輸入后進入一下步,這里你估計會輸入 好幾次才進去 8. 更換密碼 ``` mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass4!'; ``` 這個密碼一定要足夠復雜,不然會不讓你改,提示密碼不合法; 9.退出`mysql`; ``` mysql> quit; ``` 10.用新密碼再登錄,試一下新密碼 ``` $ mysql -uroot -p Enter password:輸入你的新密碼 ``` 11.確認密碼正確后,退出`mysql`; ``` mysql> quit; ``` # 卸載 有時候需要卸載,下邊講一下卸載方法: ## 1、yum卸載 ``` yum remove mysql-community-server mysql-community-devel rm -rf /var/lib/mysql rm /etc/my.cnf (我這里沒有) ``` ## 2、清除余項 ``` whereis mysql mysql: /usr/bin/mysql /usr/lib64/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz #刪除上面的文件夾 rm -rf /usr/bin/mysql rm -rf /usr/lib64/mysql rm -rf /usr/share/mysql rm -rf /usr/share/man/man1/mysql.1.gz ``` ## 3、刪除配置 ``` rm –rf /etc/my.cnf rm -rf /root/.mysql_history rm -rf /var/log/mysqld.log ``` ## 4、剩余配置檢查 ``` chkconfig --list | grep -i mysql(我這里沒有) chkconfig --del mysqld(我這里沒有) ``` 根據上面的列表,刪除 ,如:mysqld # 解決centos6.5出現-bash: mysql: command not found的方法 注:我卸載后實在沒有這個 /usr/bin/mysql ,就從其他服務器copy過來,直接運行mysql -uroot -p 就能用了!
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