Question

3

Disable RST for Installing ubuntu 20.4 Dual boot

rated 0 times [ 3] [ 0] / answers: 1 / hits: 13484 / 2 Years ago, tue, february 15, 2022, 10:33:08

I recently bought a Lenovo ideapad S340 (Intel i7 and SSD) and try to install Ubuntu 20.04 aside Windows 10.
Everything goes smooth until I am asked to disable intel RST.
Back in the bios, i select to change from RST to DH_something and get a warning telling me that i will (may) loose all data... I wont do that! I wont install linux since ubuntu allows for rst. So my question :
More and more pcs will use RST mode .. When can it be made available.. a month, a year, more?

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answered 2 Years ago wenceslockro · Accepted Answer

Intel RST

You've got a single SSD/HDD set up in RAID mode, and the Ubuntu installer won't recognize your SSD/HDD 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.

You don't need to reinstall Windows...

Below, you'll find two different ways to solve this problem. Some users found Choice #2 to be easier.

Make sure to have a backup of your important Windows files!

Choice #1: Looking at this article https://samnicholls.net/2016/01/14/how-to-switch-sata-raid-to-ahci-windows-10-xps-13/ will show you how to make the change without having to reinstall Windows.

Boot to Windows with your current SATA controller configuration

Open Device Manager

Expand Storage Controllers and identify the Intel SATA RAID Controller

View properties of the identified controller

On the Driver tab, click the Update driver… button

Browse my computer…, Let me pick…

Uncheck Show compatible hardware

Select Microsoft as manufacturer

Select Microsoft Storage Spaces Controller as model #

Accept that Windows cannot confirm that this driver is compatible

Save changes, reboot to BIOS and change RAID SATA Controller to AHCI

Save changes and reboot normally, hopefully to Windows

~~Now you should be able to install Ubuntu in a dual-boot configuration.~~

Choice #2: See http://triplescomputers.com/blog/uncategorized/solution-switch-windows-10-from-raidide-to-ahci-operation/

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.