将 Azure OpenLogic Centos 6.7 升级到 CentOS 7.2

Question

将 Azure Openlogic CentOS 6.7 升级到 CentOS7.2 的最佳方法是什么，以便它具有类似于 CentOS 7.2 映像。 我做了 sudo yum update 但它没有升级到最新版本。能不能提供一下升级到最新大版本的步骤

Answer 1

我建议使用 CentOS 7.2 模板部署新的 OS，然后从旧 VM 迁移数据和配置。

就地升级容易出错。目前CentOS官网也没有提示6到7就地升级

DO NOT USE this tool. Warning: use of this tool is currently BROKEN as several system-critical packages are of a higher version number in CentOS 6.7 than they are in CentOS 7 so those do not get upgraded correctly. This renders yum and several other system tools non-functional.