承接上文想把MacBook air 2020 i5 8+256修改为一台ubuntu 
根据热心佬友提供的github项目，里面内容十分详细。 

t2芯片mac的linux系统安装

下面写一个中文的简单流程。 

安装前须知 🫠 
The Apple T2 Security Chip is Apple’s second-generation, custom silicon for Intel-based Mac computers 
首先需要确认你的设备CPU是否属于T2芯片。 
以下是官网提供的列表：


MacBook Pro introduced in 2018 through 2020, excluding MacBook Pro (13-inch, M1, 2020)
MacBook Air introduced in 2018 through 2020, excluding...