笔者在ubuntu下用 apt install mysql-server类似的命令安装mysql, 安装了最新版的mysql5.7,覆盖了操作系统内置的数据库mysql系统库. 最初启动mysql出错信息如下 service mysql start Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" an…
redhat默认自带的yum源需要注册,才能更新,报错:This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.可替换为centos对应的源. 操作如下:1.检查是否安装yum包.查看RHEL是否安装了yum,若是安装了,那么又有哪些yum包: rpm -qa |grep yum2 删除redhat自带的yum包 rpm…