reference
https://www.bilibili.com/video/BV1554y1n7zv/
Here, the overall things are clearly stated. Here I mainly record some special differences of this model
Precautions
1. Be sure to solve the bitlocker status of the disk first, which will have an impact
2. Plug in the U disk for the first boot and turn off secure in the bios first
3. Choose the latest version of ubuntu20
http://mirrors.163.com /ubuntu-releases/20.04/
Go to this link to download this iso file for burning.
Do not use the iso with only about 2.7G, or you will encounter driver problems.
4. When starting for the second time, enter bios and start ubuntu item forward