What to do if Intel RST (Rapid Storage Technology) interferes with dual booting Ubuntu20.04LTS and Windows10

Introduction

I bought a new laptop with Windows and installed it with enthusiasm, saying, "Now, let's put Ubuntu in and make it dual boot!" Then, a warning of "Turn off RST" and a QR code appear. At first, I thought, "Well, press the green button properly!" And press the Restart button without thinking about anything. Then an error occurs. Ubuntu installation failed.

"There is no choice" and turn off Intel RST in the BIOS. Then, although Ubuntu was successfully installed, Windows does not start this time!

"What is this !!!" After trial and error, I had no choice but to return to the factory default state because Windows was broken. .. .. Since it was a PC I just bought, I didn't have any data to worry about, so I got things done, but this gave up dual booting.

However, I found a person who fell into the same situation at the following URL and asked for help. https://askubuntu.com/questions/1233623/workaround-to-install-ubuntu-20-04-with-intel-rst-systems After reproducing the contents of this answer, Windows will start normally with RST turned off! In other words, we succeeded in dual booting Windows and Ubuntu!

I suspect that some people may come across the same situation and give up dual booting Windows and Ubuntu, so here's what I've done in Japanese.

Detailed information

PC: Dell XSP15 9500 CPU: Intel Core i7-10750H RAM: 16GB GPU: Nvidia GTX 1650Ti Storage: SSD1 512GB(Windows10), SSD2 512GB(Ubuntu 20.04LTS)

Precautions

If you don't want to damage Windows, we recommend you to make recovery media. In my environment, it wasn't necessary during the following work, but just in case. There is no loss in making it, so come on! We also strongly recommend that you back up your data.

Work content

Do what is written in this URL. http://triplescomputers.com/blog/uncategorized/solution-switch-windows-10-from-raidide-to-ahci-operation/

1. Start Command Prompt with administrator privileges on Windows
2. Enter the following command bcdedit / set {current} safeboot minimal If you get an error with this bcdedit / set safeboot minimal
3. Restart your PC and turn off RST in the BIOS (see the following URL: http://pineplanter.moo.jp/non-it-salaryman/2020/06/25/ubuntu-in-lenovo /)
4. Start Windows as usual (this is where Samode starts)
5. Start the command prompt with administrator privileges in safe mode
6. Enter the following command bcdedit / deletevalue {current} safeboot If you get an error with this bcdedit / deletevalue safeboot
7. Reboot (This will start Windows normally)

After Windows starts normally by the above work, all you have to do is install Ubuntu as usual.

Summary

In this case, I introduced one of the solutions when Intel RST interferes with the dual boot method of Windows10 and Ubuntu20.04LTS.

I'm not sure if this solves the above problem in all cases, but I think it's worth a try. However, in the worst case, it may lead to damage to the pre-installed Windows, so please take recovery measures and back up the data, and take your own risk!