Ubuntu installation with Intel RST

Solution 1:

I am answering my own question with the following steps thanks to @oldfred, source of solution: https://askubuntu.com/questions/1233623/workaround-to-install-ubuntu-20-04-with-intel-rst-systems.

You've got a single HDD/SSD set up in RAID (RST) mode, and the Ubuntu installer won't recognize your HDD/SSD until you switch your disk setting in the BIOS from RAID to AHCI.

Making that switch comes with some problems though, as Windows will no longer boot.

Solution:

• Right-click the Windows Start Menu. Choose Command Prompt (Admin)

• If you don’t see Command Prompt listed, it’s because you have already been updated to a later version of Windows. If so, use this method instead to get to the Command Prompt:

• Click the Start Button and type cmd

• Right-click the result and select Run as administrator

• Type this command and press ENTER: bcdedit /set {current} safeboot minimal

  • If this command does not work for you, try bcdedit /set safeboot minimal

• Restart the computer and enter BIOS Setup (the key to press varies between systems).

• Change the SATA Operation mode to AHCI from either IDE or RAID (again, the language varies).

• Save changes and exit Setup and Windows will automatically boot to Safe Mode.

• Right-click the Windows Start Menu once more. Choose Command Prompt (Admin)

• Type this command and press ENTER: bcdedit /deletevalue {current} safeboot

• If you had to try the alternate command above, you will likely need to do so here also: bcdedit /deletevalue safeboot

• Reboot once more and Windows will automatically start with AHCI drivers enabled.